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Avaya 8600 Configuration Manual

Ethernet routing switch
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Download this manual See also: Maintenance Manual, Technical Manual
Configuration — Link Aggregation, MLT,
and SMLT
Avaya Ethernet Routing Switch 8800/8600
7.1.3
NN46205-518, 06.01
January 2012

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Summary of Contents for Avaya 8600

  • Page 1 Configuration — Link Aggregation, MLT, and SMLT Avaya Ethernet Routing Switch 8800/8600 7.1.3 NN46205-518, 06.01 January 2012...
  • Page 2 Product provided by Avaya including the selection, arrangement and While reasonable efforts have been made to ensure that the design of the content is owned either by Avaya or its licensors and is information in this document is complete and accurate at the time of protected by copyright and other intellectual property laws including the printing, Avaya assumes no liability for any errors.

  • Page 3: Table Of Contents

    Contents Chapter 1: Purpose of this document................Chapter 2: New in this release................... Features..............................9 VLACP flap detect and damping...................... 9 Dynamic VLAN addition to LACP-enabled MLT (LAG)..............9 Other changes............................9 Chapter 3: Link aggregation fundamentals..............Link aggregation overview........................11 MultiLink Trunking.............................
  • Page 4 MLT with LACP and Spanning Tree configuration considerations........... 53 LACP parameters configuration considerations................54 Link aggregation and scaling......................55 Chapter 4: Link aggregation configuration using Enterprise Device Manager..... Configuring global LACP parameters....................... 57 Configuring LACP parameters........................59 Configuring LACP on a port........................61 Chapter 5: MLT and SMLT link aggregation configuration using Enterprise Device Manager..........................
  • Page 5 Enabling SMLT Interoperability with MSTP using CLI................104 Disabling SMLT Interoperability with MSTP using CLI................105 Displaying MLT IST information using CLI....................105 Configuring a single port SMLT......................... 106 Viewing the MLT port calculated by the MLT hash algorithm..............107 MLT and SMLT show commands......................
  • Page 6 Viewing VLACP flap detect and damping configuration................150 Chapter 14: Customer Service................... Getting technical documentation....................... 153 Getting product training..........................153 Getting help from a distributor or reseller....................153 Getting technical support from the Avaya Web site.................. 153 Glossary..........................Configuration — Link Aggregation, MLT, and SMLT January 2012...

  • Page 7: Chapter 1: Purpose Of This Document

    This document contains procedural and conceptual information to help you configure and manage link aggregation and MultiLink trunking on the Avaya Ethernet Routing Switch 8800/8600. This document also provides instructions for using the Command Line Interface (CLI), the Avaya Command Line Interface (ACLI), and the Enterprise Device Manager (EDM).
  • Page 8 Purpose of this document Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 9: Chapter 2: New In This Release

    Chapter 2: New in this release See the following sections for the changes in Avaya Ethernet Routing Switch 8800/8600 Configuration — Link Aggregation, MLT, and SMLT, NN46205-518 for Release 7.1.3. • Features on page 9 • Other changes on page 9 Features See the following sections for feature updates to this document in release 7.1.3.
  • Page 10 New in this release Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 11: Chapter 3: Link Aggregation Fundamentals

    Chapter 3: Link aggregation fundamentals This chapter describes link aggregation concepts and the features supported on the Avaya Ethernet Routing Switch 8800/8600. Link aggregation overview Link aggregation provides link level redundancy and increases load sharing. Link aggregation allows you to bundle the ports into a port group, which is represented as one logical interface to the MAC layer.

  • Page 12: Multilink Trunking

    You can use a MultiLink trunk to aggregate bandwidth between two switches. The Ethernet Routing Switch 8800/8600 uses one of two algorithms to determine which active port in the MultiLink trunk to use for each packet. The MLT algorithms provide load sharing, not load balancing.
  • Page 13 MultiLink Trunking R, RS, and 8800 module traffic distribution algorithm This release uses an enhanced traffic distribution algorithm for R, RS, and 8800 modules, which ensures proper traffic distribution in all customer networks. The MLT hashing algorithm is based on Layer 4 fields for IPv4 UDP/TCP traffic for R, RS, and 8800 modules, versus Source and Destination IP addresses.

  • Page 14: Multicast Flow Distribution Over Mlt

    TV streams are employed. When you configure flow distribution over MLT, Avaya recommends that you choose source and group masks that result in even traffic distribution over the MultiLink trunk links. For example, if the group addresses change incrementally while few sources sending to different groups, use a source mask of 0.0.0.0 and a group mask of 255.255.255.255.
  • Page 15 MultiLink Trunking source subnet address S[0].S[1].S[2].S[3] source mask SM[0].SM[1].SM[2].SM[3] The port is calculated by using: ( ( ( (( G[0] AND GM[0] ) XOR ( S[0] AND SM[0] ) ) XOR ( (G[1] AND GM[1] ) XOR ( S[1] AND SM[1] )) ) XOR ( (G[2] AND GM[2] ) XOR ( S[2] AND SM[2] )) ) XOR ( ( G[3] AND GM[3] ) XOR ( S[3] AND SM[3] )) ) MOD (active ports of the MLT) Algorithm example...
  • Page 16 MultiLink trunk. This redistributes a few streams at every system time tick. For a detailed description about the commands you use to configure multicast flow distribution over MLT, see Avaya Ethernet Routing Switch 8800/8600 Configuration — IP Multicast Routing Protocols, NN46205-501. MLT network topology and configuration examples The following reference information contains examples of MLT network topology and configuration.
  • Page 17 MLT T2, T3, and T4. Clients access data from the servers (FS1 and FS2) and receive maximized bandwidth through T1, T2, T3, and T4. On the Avaya Ethernet Routing Switch 8800/8600, trunk members (the ports that comprise each MultiLink Configuration —...

  • Page 18: Mlt And Mlt With Lacp Configuration Rules

    Figure 3: Client/server MultiLink trunk configuration MLT and MLT with LACP configuration rules Avaya Ethernet Routing Switch 8800/8600 MultiLink trunks adhere to the following rules. The rules also apply to MLT with LACP. • MLT is supported on 10Base-T, 100Base-TX, 100Base-FX, Gigabit Ethernet, and 10 Gigabit Ethernet module ports.

  • Page 19: Lag Rules

    • The MultiLink trunk port ID is the ID of the lowest numbered port. • If identical BPDUs are received on all ports, the MultiLink trunk mode is forwarding. You can disable the Avaya STP (ntstg <enable|disable>) if you do not want to receive BPDUs on all ports.

  • Page 20: Multilink Trunking With Lacp

    Figure 4: Link aggregation sublayer (according to IEEE 802.3ad) on page 21shows the major functions of IEEE 802.3ad defined as multiple link aggregation. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...
  • Page 21 Frame Distributor. Frame distribution also includes an optional Marker Generator/Receiver used for the Marker Protocol. Ethernet Routing Switch 8800/8600, only implements the Marker Receiver function. For details about the frame distribution algorithm, see MLT traffic distribution algorithm on page 12.

  • Page 22: 802.3Ad Link Aggregation Principles

    (for example, keys). You can also use LACP to automatically determine, configure, bind, and monitor link aggregation. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 23: Split Multilink Trunking

    • Conversations move among ports within an aggregation for load balancing and for maintaining availability if a link fails. • The standard does not impose any particular distribution algorithm on the distributor. The Avaya Ethernet Routing Switch 8800/8600 uses the MLT traffic distribution algorithm described in MLT traffic distribution algorithm on page 12.

  • Page 24: Smlt Overview

    RSMLT configuration) because of the way that MLTs work in regards to CP-generated traffic, Avaya highly recommends that the MLT port (or ports) that form the square leg of the mesh (versus the cross connect) be placed on lowered number slot/port than the cross connections.

  • Page 25: Smlt Versus Stp

    Clustering using Split-Multilink Trunking (SMLT), NN48500-518 and SMLT and RSMLT Technical Configuration Guide. You can find the technical configuration guides at www.avaya.com/support with the rest of the ERS 8800/8600 documentation. SMLT advantages SMLT eliminates all single points of failure and creates multiple paths from all user access switches to the network core.

  • Page 26: Smlt Topologies

    Figure 5: SMLT aggregation switches and operations on page 27 illustrates an SMLT configuration with a pair of Avaya Ethernet Routing Switch 8800/8600 devices (E and F) as aggregation switches and four separate user access switches (A, B, C, and D).
  • Page 27 Avaya recommends that an interswitch MultiLink trunk contain at least two physical ports. Avaya also recommends that you disable CP-Limit on all physical ports that are members of an interswitch trunk MultiLink trunk, so as not to compromise the stability of SMLT.
  • Page 28 Unknown and Broadcast packets flood out all ports that are members of this VLAN. • For load sharing purposes in an SMLT configuration, the Avaya Ethernet Routing Switch 8800/8600 obeys the MLT traffic distribution algorithm. SMLT traffic flow examples...

  • Page 29: Smlt And Ist Traffic Flow Example

    Split MultiLink Trunking Example 2: Traffic flow from b1/ b2 to c1/ c2 Traffic from b1/ b2 to c1/ c2 is always sent by switch B through its MultiLink trunk to the core. No matter at which switch (E or F) arrives at, it is sent directly to C through the local link. Example 3: Traffic flow from a to d Traffic from a to d (and d to a) is forwarded across the interswitch trunk because it is the shortest path.
  • Page 30 MLT-1 rather than through the interswitch trunk. Traffic rarely traverses the interswitch trunk unless there is a failure. If this same packet arrives at B, it is then forwarded to MLT-1 on the local ports. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 31: Smlt Interoperability With Mstp

    Split MultiLink Trunking Figure 7: Output of the command show vlan info fdb-e 10 SMLT Interoperability with MSTP Release 7.1 introduces functionality that allows interoperability between an SMLT cluster and MSTP in an Ethernet network. When you configure an InterSwitch Trunk (IST) and enable SMLT, with one command you can enable interoperability between the SMLT cluster and the MSTP side of the network.
  • Page 32 • The RSTP Base MAC is set to 00:00:00:00:00:02 on the switch with the lowest IST IP (SMLT slave). • The SMLT slave is always the CIST/Regional/MSTI Root if the SMLT master IST peer fails. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 33: Single Port Smlt

    • single link SMLT and single link SMLT Single Port SMLT configuration You can use Single Port SMLT when you exceed the Avaya Ethernet Routing Switch 8800/8600 MultiLink trunk Group ID limit for server farm applications. The Single Port SMLT topology allows scaling up to the maximum number of ports on a switch.
  • Page 34 • You cannot change an MLT-based split MultiLink trunk into a single port split MultiLink trunk by deleting all ports except one. You must remove the SMLT/MLT and reconfigure the port as Single Port SMLT. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 35: Mlt-Based Smlt With Single Port Smlt

    You can configure Link Aggregation/MLT group IDs from 1 through 256. The switch supports a total of 128 MLT groups. Avaya suggest that users start numbering S-SMLT or SLT IDs to avoid overlapping MLT IDs in the 1 through 128 range. SLT IDs range from 1 through 512.
  • Page 36 Link aggregation fundamentals Figure 9: Changing a split trunk from MLT-based SMLT to Single Port SMLT Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 37: Smlt And Lacp Support

    Split MultiLink Trunking SMLT and LACP support The Ethernet Routing Switch 8800/8600 fully supports the IEEE 802.3ad LACP on MLTs and on a pair of SMLT switches. With LACP the Ethernet Routing Switch 8800/8600 provides a standardized external link aggregation interface to third-party vendor IEEE 802.3ad implementations. This protocol extension provides dynamic link aggregation mechanisms.

  • Page 38: Smlt And Ip Routing

    VLAN interfaces. When using an SMLT with routing on SMLT aggregation switches, Avaya recommends that you use VRRP for default gateway redundancy. In a VRRP environment, one switch is active and the other is backup.

  • Page 39: Smlt And Slpp

    • Stagger the hold-down timers with ARP requests. So the Avaya Ethernet Routing Switch 8800/8600 does not run ARP and SMLT at the same time causing excess CPU load. For example, if one node has the hold-down timer configured for 60 seconds, you can configure the other hold-down timer to 65 seconds.

  • Page 40: Smlt/Rsmlt Operational Improvements

    MAC/ARP belonging to the SMLTs in both the IST core peer switches. Flushing of the MAC addresses then causes the dependent ARP to be re-resolved. For ARP resolution, ERS 8800/8600 re-ARPs for all the SMLT learned ARPs. This created a major MAC/ARP re-learning effort.

  • Page 41: Additional Smlt Considerations

    MLT connection (non-IST) is supported, but such designs are not recommended. For an IPVPN-lite configuration, where an edge 8800/8600 Cluster is configured to use a SMLT configuration toward the core (most likely square or full-mesh RSMLT), SMLT fast failover cannot always be guaranteed for this portion of the network.
  • Page 42 SMLT. Some messages will be generated for normal SMLT failovers, but additionally these messages can assist with troubleshooting any abnormal SMLT activity. Under abnormal conditions, please contact Avaya Technical Support for further assistance, and provide the exact log messages generated.

  • Page 43: Virtual Link Aggregation Control Protocol

    SMLT, enhanced failure detection is extended beyond the limits of the number of SMLT or LACP instances that can be created on an Avaya switch. VLACP trap messages are sent to the management stations if the VLACP state changes. If the failure is local, the only traps that are generated are port linkdown or port linkup.
  • Page 44 When used in conjunction with SMLT, VLACP allows you to switch traffic around entire network devices before Layer 3 protocols detect a network failure, thus minimizing network outages. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 45: Vlacp Timers And Sub-100-Ms Core Convergence

    Routing Switch 8800/8600 devices. For more information about SuperMezz, see Avaya Ethernet Routing Switch 8800/8600 Installation — Modules, NN46205-304. Although Ethernet Routing Switch 8800/8600 ports can be configured with a VLACP fast- periodic timer of less than 30 ms, this configuration is not stable in scaled networks, and therefore not supported.

  • Page 46: Vlacp Considerations

    The switch can send VLACP PDUs at the short timeout interval, even though the long timeout interval is configured. This operation has no negative affect on VLACP operation, to other ERS 8800/8600s, or to any other Avaya ERS switches running VLACP.

  • Page 47: Vlacp Flap Detect And Damping

    VLANs, but without ECMP. For fast convergence, Avaya recommends that you use RSMLT rather than ECMP. • If the value of VLACP timer is not set to a multiple of 10, VLACP may not function properly because the VLACP port may not be able to send out any VLACP PDUs.

  • Page 48: Lacp And Minimum Link

    VLACP flap detect and damping is disabled by default, and should only be enabled after consultation with Avaya Client Services. Although there is some interaction with existing LACP link flap functionality, Avaya recommends that you do not use the VLACP flap dampening feature on an LACP-enabled interface.

  • Page 49: Minlink Operations

    If the number of active links in the LAG becomes less than the MinLink setting, the Ethernet Routing Switch 8800/8600 marks the LAG as down, and informs the remote end of the LAG state by using a Link Aggregation Control Protocol Data Unit (LACPDU). The switch continues to send LACPDUs to neighbors on each available link based on the configured timers.

  • Page 50: Mlt With Lacp Configuration Considerations

    In the ACLI Global Configuration Mode, use either of the following commands to add a VLAN to an active LACP-enabled MLT: • mlt <mlt-id> vlan <vid> • vlan mlt <vid> <mlt-id> Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 51: Mlt With Lacp And Smlt Configuration Considerations

    • When you set the LACP system ID for SMLT, configure the same LACP SMLT system ID on both aggregation switches to avoid the loss of data. Avaya recommends that you configure the LACP SMLT system ID to be the base MAC address of one of the aggregate switches, and that you include the SMLT-ID.
  • Page 52 SMLT-ID or SLT-ID are sent to the wiring closet switch. Avaya recommends that you configure the system ID to be the base MAC address of one of the aggregate switches along with its SMLT-id. The administrator must...

  • Page 53: Mlt With Lacp And Spanning Tree Configuration Considerations

    Therefore, you must enter the ntstg disable command to disable the parameter on the Spanning Tree Group (STG) for LACP-based link aggregation. For more information about this command, see Avaya Ethernet Routing Switch 8800/8600 Configuration — VLANs and Spanning Tree, NN46205-517.

  • Page 54: Lacp Parameters Configuration Considerations

    SMLT applications, use a system priority to determine a master–slave relationship between the SMLT switches. Avaya recommends that you use the default value. If you need to change it, first disable the LACP and then enable it again after you change the value.

  • Page 55: Link Aggregation And Scaling

    Link aggregation and scaling The following table summarizes the number of aggregation groups supported on Ethernet Routing Switch 8800/8600 modules. Refer to the release notes included with your switch to obtain the latest scalability information. Table 2: Link aggregation scaling for the Avaya Ethernet Routing Switch 8800/8600...
  • Page 56 Link aggregation fundamentals Feature Number Maximum number of links (ports) for each MLT group Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 57: Chapter 4: Link Aggregation Configuration Using Enterprise Device Manager

    Chapter 4: Link aggregation configuration using Enterprise Device Manager MultiLink Trunking (MLT) with Link Aggregation Control Protocol (LACP) manages switch ports and port memberships to form a link aggregation group (LAG). Configure LACP to allow dynamic bundling of physical ports to form a single logical channel. Important: The current release does not support standby mode for aggregation groups larger than eight ports.
  • Page 58 The default value is 3. TimeoutScaleOper The operating value of the timeout scale on the port. The default value is 3. BaseMacAddr Specifies the base MAC address of the chassis. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 59: Configuring Lacp Parameters

    SMLT situations. You must configure the same LACP SMLT system ID on both aggregation switches to avoid loss of data. Avaya recommends that you configure the SmltSysId so it matches the base MAC address of one of the chassis.
  • Page 60 The current operational value of the key for the aggregator current protocol partner. This is a 16 bit read-only value. If the aggregation is manually configured, the value is assigned by the local system. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 61: Configuring Lacp On A Port

    Configuring LACP on a port Configuring LACP on a port Configure LACP on a port to enable LACP. Procedure steps 1. On the Device Physical View, select a port. 2. In the navigation tree, open the following folders: Configuration > Edit > Port. 3.
  • Page 62 This can be of particular use in the configuration of equipment that has limited aggregation capability. ActorAdminKey The current administrative value of the key for the aggregator. The administrative key value Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...
  • Page 63 Configuring LACP on a port Variable Value can differ from the operational key value. This is a 16-bit read-write value in the range of 0– 65535. This key needs to match the LAG key. ActorOperKey The current operational value of the key for the aggregator.
  • Page 64 The default value is 0. PartnerOperKey The current operational value of the key for the aggregator current protocol partner. This is a 16-bit read-only value. If the aggregation is Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...
  • Page 65 Configuring LACP on a port Variable Value manually configured, this value is assigned by the local system. The default value is 0. PartnerAdminPort The current administrative value of the port number for the protocol partner. This is a 16– bit read-write value in the range of 0–65535. The assigned value is used, along with the value of PartnerAdminSystemPriority, PartnerAdminSystemID, PartnerAdminKey,...
  • Page 66 Link aggregation configuration using Enterprise Device Manager Variable Value • lacpShortTimeout • collecting • expired • aggregation • distributing PartnerOperState This value reflects the value of PartnerAdminState. This attribute value is read-only. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 67: Chapter 5: Mlt And Smlt Link Aggregation Configuration Using Enterprise Device Manager

    Chapter 5: MLT and SMLT link aggregation configuration using Enterprise Device Manager Configure link aggregation to provide link level redundancy and increase load sharing. Multi-Link Trunking (MLT) is a link aggregation technology that allows grouping several physical Ethernet links into one logical Ethernet link to provide fault-tolerance and high-speed links between routers, switches, and servers.
  • Page 68 All untagged ports must belong to the same STG. For Ethernet Routing Switch 8800/8600 modules, up to eight same-type ports can belong to a single MLT. When the aggregatable field is set to enable, this field becomes read-only.
  • Page 69 Avaya Ethernet Routing Switch 8800/8600 Configuration — IP Multicast Routing Protocols, NN46205-501 . ClearLinkAggregate Disables and re-enables aggregation on the MLT. NtStgEnable Specifies if this MLT is operating in Avaya Mode or in Cisco Mode. • true—Avaya mode (default) • false—Cisco mode DesignatedPort...

  • Page 70: Adding Ports To An Mlt

    • Select the ports from the Port Editor: PortMembers dialog box to add to the PortMembers box. • Click All to add all ports to the MLT. For Ethernet Routing Switch 8800/8600 modules, up to eight same-type ports can belong to a single MLT. 7. Click Insert.
  • Page 71 Adding an MLT-based SMLT Important: For Ethernet Routing Switch 8800/8600 modules, up to eight same-type ports can belong to an MLT. Prerequisites • Create an MLT before creating an SMLT. You can create an SMLT by selecting the MLT type as SMLT and then specifying an SMLT ID.

  • Page 72: Viewing Mlt-Based Smlts

    1. In the navigation tree, open the following folders: Configuration > VLAN. 2. Click SMLT. 3. Click the SMLT Info tab. The SMLT Info tab appears with all the configured MLT-based SMLT displayed. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 73: Adding Ports To An Mlt-Based Smlt

    Adding ports to an MLT-based SMLT Variable definitions Use the data in the following table to help you view the MLT-based SMLT configuration. Variable Value Shows the MLT ID for this SMLT Read-only. SmltId Shows the MLT-based SMLT ID number. MltType Specifies the type of MLT: •...

  • Page 74: Configuring An Ist Mlt

    MLT and SMLT link aggregation configuration using Enterprise Device Manager Important: For Ethernet Routing Switch 8800/8600 modules, up to eight same-type ports can belong to a single MLT. 7. Click Ok. The ports are added to the Port Members box on the MLTs tab.

  • Page 75: Editing An Ist

    Editing an IST The IST is added to the MLT/LACP box. 15. In the Device Physical View, select a port on the Ethernet module. 16. In the navigation tree, open the following folders: Configuration > Edit > Port. 17. Click General. 18.

  • Page 76: Enabling Smlt Interoperability With Mstp Using Edm

    6. In the StpEnable box, click the enable button. 7. On the toolbar, click Apply. Disabling SMLT Interoperability with MSTP using EDM Use the following procedure to disable SMLT Interoperability for MSTP. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 77: Displaying Ist Mlt Information Using Edm

    Displaying IST MLT information using EDM Procedure steps 1. From the Configuration tree, click VLAN. 2. From the VLAN tree, click MLT/LACP. 3. Click the MultiLink/LACP Trunks tab. 4. From the list, click an IST MLT. 5. On the toolbar, click the IstMLT button. 6.
  • Page 78 Single Port SMLT cannot be configured on this port. • A value of 0 indicates that no MLT is assigned, and the port can be configured for Single Port SMLT. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 79: Viewing Single Port Smlts

    Viewing Single Port SMLTs Variable Value SmltId The SMLT ID in the range 1–512. • A read-only field indicates the Single Port SMLT ID assignment for the port. • A blank field indicates the port is not configured for Single Port SMLT.

  • Page 80: Deleting A Single Port Smlt

    4. Click the SMLT tab. 5. Select the SMLT that you want to delete. 6. Click Delete. 7. Click Ok in the confirm message box. The single port SMLT is deleted. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 81: Chapter 6: Vlacp Configuration Using Enterprise Device Manager

    Chapter 6: VLACP configuration using Enterprise Device Manager Configure Virtual LACP (VLACP) to implement link status control protocol at the port level. Note that VLACP cannot interoperate with LACP. Enabling VLACP globally Enable VLACP globally to detect for end-to-end failure. VLACP uses the Hello mechanism of LACP to periodically send Hello packets to ensure there is an end-to-end approach.
  • Page 82 The default value is 3. EtherType The VLACP protocol identification. The ID is in hexadecimal format. The default value is 0x8103. EtherMacAddress The multicast MAC address exclusively used for VLACPDUs. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 83: Configuring Vlacp Flap Detect And Damping

    Configuring VLACP flap detect and damping Variable Value PortState Specifies the VLACP port state. Configuring VLACP flap detect and damping Configure VLACP flap detect and damping to automatically shut down a VLACP link that is flapping. Prerequisites • Make sure that the VLACP flap interval is long enough to recognize that a port is flapping. (The default settings may not allow enough time.) A VLACP down event does not occur until the receiving side has not seen a VLACP PDU for a number of seconds (Timout x TimeoutScale).
  • Page 84 Specifies the flap frequency. The value ranges from 3–30. The default is 3. FlapInterval Specifies the flap interval, in seconds. The value ranges from 10–600. The default is 60. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 85: Chapter 7: Link Aggregation Configuration Using The Cli

    Chapter 7: Link aggregation configuration using the CLI MultiLink Trunking (MLT) with Link Aggregation Control Protocol (LACP) manages switch ports and port memberships to form a link aggregation group (LAG). Configure LACP to allow dynamic bundling of physical ports to form a single logical channel. LACP can be described in terms of link aggregation operations within a single system.
  • Page 86 <milliseconds> fast-periodic-time <milliseconds> info key <integer> aggregation <true|false> mode <active|passive> partner-key <int> partner-port <int> partner-port-priority <int> partner-state <hex> partner-system-id <mac> partner-system-priority <int> port-priority <integer> slow-periodic-time <milliseconds> system-priority <integer> Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 87: Configuring Global Lacp Parameters

    Configuring global LACP parameters Command Parameter system-priority <integer> timeout {long|short} timeout-scale <integer> show lacp info show ports info lacp actor-admin [vlan <value>] [port <value>] all [vlan <value>] [port <value>] actor-oper [vlan <value>] [port <value>] extension [vlan <value>] [port <value>] partner-admin [vlan <value>] [port <value>] partner-oper [vlan <value>] [port <value>]...

  • Page 88: Configuring Lacp On A Port

    Configure LACP on a port to enable or disable LACP on the selected ports. A port can operate in active or passive mode. You can configure a port to be an individual link or an aggregatable link. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...
  • Page 89 Configuring LACP on a port Important: Changes made at the global level override and reset all port level settings. Procedure steps 1. Configure LACP on a port by using the following command: config {ethernet|pos} <portList> lacp Specify ethernet for Ethernet ports; pos for Packet over SONET ports. Variable definitions Use the data in the following table to help you use the config {ethernet|pos} <portList>...
  • Page 90 Sets the timeout value to either long or short for this port. The default value is long. timeout-scale <integer> Sets a timeout scale for this port. The default value is 3, and the value ranges from 2 to 10. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 91: Lacp Show Commands

    LACP show commands LACP show commands Use the LACP show commands to displays LACP configuration information. Navigation • Viewing global LACP configuration information on page 91 • Viewing LACP configuration information on page 91 Viewing global LACP configuration information View global LACP configuration information so that you can display global LACP configuration information.
  • Page 92 [vlan <value> Shows port LACP partner operational information. <value> [port • value is the VLAN ID. vlan • value is the port or port list. port Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 93: Chapter 8: Mlt And Smlt Link Aggregation Configuration Using The Cli

    Chapter 8: MLT and SMLT link aggregation configuration using the CLI Configure link aggregation to provide link level redundancy and increase load sharing. Multi-Link Trunking (MLT) is a link aggregation technology that allows grouping several physical Ethernet links into one logical Ethernet link to provide fault-tolerance and high-speed links between routers, switches, and servers.
  • Page 94 <slot/port> broadcast-limit <value> cp-limit <enable|disable> multicast-limit <value> config ethernet <port> smlt create <smltid> delete info config sys set smlt-on- single-cp <enable|disable> [timer <value> ] show mlt error collision [<mid>] Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 95: Configuring An Mlt

    Configuring an MLT Command Parameter show mlt error main [<mid>] show mlt info [<mid>] show mlt ist info show mlt lacp info <ifindex> show mlt show-all [file <value>] show mlt stats [<mid>] show ports info smlt [vlan <value> ] [port <value>] show ports info config [vlan <value>...

  • Page 96: Adding Ports To An Mlt Lag

    LAG. {enable| Enables or disables multicast distribution per mcast-distribution LAG. Multicast distribution is disabled by disable} default. For more information, see Avaya Ethernet Routing Switch 8800/8600 Configuration — IP Multicast Routing Protocols, NN46205-501. name <string> Names a LAG. • string is the name, from 0 to 20 characters.

  • Page 97: Removing Ports From An Mlt Lag

    1–4094. Procedure job aid: Example of adding ports to an MLT LAG To add the ports to the LAG use the following command: ERS-8600:5#/config/mlt/1# add port 1/1-1/7,1/9 ERS-8600:5#/config/mlt/1# add vlan 1-8,10 ERS-8600:5#/config/mlt/1# info Sub-Context: Current Context: ports : 1/1-1/7,1/9 vlan : 1-8,10 Removing ports from an MLT LAG Remove ports from an MLT LAG to remove a VLAN from an MLT configuration.

  • Page 98: Viewing Mlt Lacp Configuration Information For Aggregators

    LAG. The range is 1–4094. Viewing MLT LACP configuration information for aggregators View the MLT LACP configuration information per aggregator to obtain LACP configuration information per aggregator. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 99: Configuring Lacp On An Mlt

    Configuring LACP on an MLT Procedure steps 1. View MLT LACP configuration information per aggregator by using the following command: show mlt lacp info <ifindex> Configuring LACP on an MLT Configure an MLT with LACP to use the dynamic link aggregation function. Prerequisites •...

  • Page 100: Creating A Smlt From An Existing Mlt

    Configures the minimum number of active links (MinLink) required for the LAG to remain in forwarding state. If the number of active links falls below this number, the Avaya Ethernet Routing Switch 8800/8600 declares the entire LAG down. The default value is 1. <mlt id>...

  • Page 101: Creating An Interswitch Trunk

    Creating an interswitch trunk config mlt <mid> smlt Variable definitions Use the data in the following table to help you use the config mlt <mid> smlt command. Variable Value create smlt-id <value> Creates a split MultiLink trunk from an existing MultiLink trunk. •...

  • Page 102: Creating An Interswitch Trunk From An Existing Mlt

    Use the data in the following table to help you use the config mlt <mlt-id> ist create ip <value> vlan-id <value> command. Variable Value <value> Specifies the IP address of the peer switch <mlt-id> Specifies the MLT ID. <value> Specifies the VLAN ID. vlan-id Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 103: Enabling And Disabling An Interswitch Trunk

    Enabling and disabling an interswitch trunk Procedure job aid: Example of creating an interswitch trunk from an existing MLT The following lists the steps you need to do to create an interswitch trunk from an existing MLT. 1. Create an interswitch trunk to enable the switch. 2.

  • Page 104: Deleting An Interswitch Trunk

    Enabling SMLT Interoperability with MSTP using CLI Use the following procedure to enable SMLT Interoperability for MSTP. Prerequisites • Configure your switch to MSTP mode. • Configure an IST MLT. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 105: Disabling Smlt Interoperability With Mstp Using Cli

    Disabling SMLT Interoperability with MSTP using CLI Procedure steps 1. At the system prompt, enter the following command config mlt <ID> ist spanning-tree enable Disabling SMLT Interoperability with MSTP using CLI Use the following procedure to disable SMLT Interoperability for MSTP. Procedure steps 1.

  • Page 106: Configuring A Single Port Smlt

    Value Creates a single port SMLT. create Deletes a single port SMLT. delete info Shows the port SMLT information. <port> Specifies the port number <smltid> Specifies the MLT ID. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 107: Viewing The Mlt Port Calculated By The Mlt Hash Algorithm

    Viewing the MLT port calculated by the MLT hash algorithm Viewing the MLT port calculated by the MLT hash algorithm View the MLT port calculated by the MLT hash algorithm to obtain information about the MLT port calculated by the distribution algorithm for R, RS, and 8800 modules. Procedure steps 1.

  • Page 108: Mlt And Smlt Show Commands

    1. View all MLT information by using the following command: show mlt show-all [file <value>] Variable definitions Use the data in the following table to help you use the show mlt show-all [file <value>] command. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 109: Viewing Information About Collision Errors

    MLT and SMLT show commands Variable Value <value> Specifies the filename to which the output is directed. Viewing information about collision errors View information about collision errors to display information about collision errors in the specified MLT, or for all MLTs. Procedure steps 1.

  • Page 110: Viewing Mlt Status

    [<mid>] Variable definitions Use the data in the following table to help you use the show mlt info [<mid>] command. Variable Value <mid> Specifies the MLT ID. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 111: Viewing Smlt Status

    MLT and SMLT show commands Viewing SMLT status View the SMLT status to display SMLT status for the switch or for a specific SMLT ID. Important: The switch shows both MLT-based SMLT information and single port SMLT information. Procedure steps 1.
  • Page 112 Use the data in the following table to help you use the show ports info config command. Variable Value <value> Specifies a port or list of ports. port vlan <value> Specifies a VLAN ID or list of VLAN IDs. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 113: Chapter 9: Vlacp Configuration Using The Cli

    Chapter 9: VLACP configuration using the Configure Virtual LACP (VLACP) to implement link status control protocol at the port level. VLACP detects for end-to-end failures in the Avaya Ethernet Routing Switch 8800/8600. Note that VLACP cannot interoperate with LACP. Job aid: Roadmap of VLACP commands The following table lists the commands and their parameters that you use to complete the procedures in this section.

  • Page 114: Configuring Vlacp On A Port

    Shows current level parameter settings and info next level directories. macaddress <mac> Sets the multicast MAC address used for the VLACPDU. • mac is the MAC address in the following format: 0x00:0x00:0x00:0x00:0x00:0x00 Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 115: Viewing Vlacp Port Configuration

    Viewing VLACP port configuration Variable Value slow-periodic-time <milliseconds> Sets the slow periodic time (in milliseconds) for a specific port type. The default value is 30000. timeout {long|short} Sets the port to use the long or short timeout: • long sets the port to use the timeout- scale value multiplied by the slow-periodic- time.

  • Page 116: Configuring Vlacp Flap Detect And Damping

    For information on the vlacp timout and vlacp timeout-scale commands, see Configuring VLACP on a port on page 114. Procedure steps To configure VLACP flap detection, use the following command: config ethernet <port> vlacp Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 117: Viewing Vlacp Flap Detect And Damping Configuration

    Viewing VLACP flap detect and damping configuration Variable definitions The following table defines optional parameters that you enter to configure VLACP flap detect and damping. Variable Value flap-detect <true | false> Enable or disable the flap detect feature. Flap detect is disabled by default. <integer>...
  • Page 118 VLACP configuration using the CLI Variable Value vlacp [vlan <value>] [port <value>] Shows VLACP port information. • vlan <value> is the VLAN ID. • port <value> is the port or portlist Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 119: Chapter 10: Mlt And Mlt With Lacp Cli Configuration Examples

    This configuration example shows how to create a MultiLink Trunk (MLT) and a VLAN between two Avaya Ethernet Routing Switch 8800/8600 devices. The network depicted in the following diagram shows a MLT within a VLAN used to carry user traffic.

  • Page 120: Multilink With Lacp Configuration Example

    You must configure all aggregatable ports to use the same aggregator key used for the MLT. The following procedures show how to configure switch S1 and S2 in the following diagram as a MLT with LACP. Configuring S1: Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...
  • Page 121 Multilink with LACP configuration example 1. Create VLAN 100 and add ports to the VLAN: ERS-8606:5#config vlan 100 create byport 1 ERS-8606:5# config vlan 100 ports add 1/1-1/2,2/1-2/2 2. Configure LACP on S1 switch ports: ERS-8606:5#config ether 1/1-1/2,2/1-2/2 lacp key 10 ERS-8606:5# config ether 1/1-1/2,2/1-2/2 lacp aggregation true ERS-8606:5#config ether 1/1-1/2,2/1-2/2 lacp enable 3.
  • Page 122 MLT and MLT with LACP CLI configuration examples Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 123: Chapter 11: Link Aggregation Configuration Using The Acli

    Chapter 11: Link aggregation configuration using the ACLI MultiLink Trunking (MLT) with Link Aggregation Control Protocol (LACP) manages switch ports and port memberships to form a link aggregation group (LAG). Configure LACP to allow dynamic bundling of physical ports to form a single logical channel. LACP can be described in terms of link aggregation operations within a single system.
  • Page 124 [vid {vlan-id[-vlan-id] [,...]}] [<portList>] gigabitethernet [vid {vlan-id[-vlan- id][,...]}] [<portList>] mlt [<64–6399>] pos [vid {vlan-id[-vlan-id][,...]}] [<portList>] Global Configuration mode lacp aggr-wait-time <200–2000> enable fast-periodic-time <200–20000> slow-periodic-time <10000–30000> smlt-sys-id <0x00:0x00:0x00:0x00:0x00:0x00> Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 125: Configuring Global Lacp Parameters

    Configuring global LACP parameters Command Parameter system-priority <0–65535> timeout-scale <2–10> Interface Configuration mode lacp aggregation enable aggr-wait-time <200–2000> enable fast-periodic-time <200–20000> key <0–65535> min-links <1-8> mode {active, passive} partner-key <0–65535> partner-port <0–65535> partner-port-priority <0–65535> partner-state <0x00–0xff> partner-system-id <0x00:0x00:0x00:0x00:0x00:0x00> partner-system-priority <0–65535> priority <0–65535>...
  • Page 126 The default value is 32768. timeout-scale <2-10> Sets the timeout scale globally. The default value is 3. To set this option to the default value, use the operator with the command. default Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 127: Configuring Lacp On A Port

    Configuring LACP on a port Configuring LACP on a port Configure LACP on a port to enable or disable LACP on the selected ports. A port can operate in active or passive mode. You can configure a port to be an individual link or an aggregated link.
  • Page 128 {long,short} Sets the timeout to either long or short. To set this option to the default value, use the default operator with the command. The default value is long. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 129: Viewing Lacp Configuration Information

    Viewing LACP configuration information Viewing LACP configuration information View LACP configuration information to determine the LACP parameters and to ensure your configuration is correct. Prerequisites • You must log on to the Privileged EXEC mode in the ACLI. Procedure steps 1.
  • Page 130 VLAN ID or list of VLAN vlan-id IDs to show only ports attached to a particular VLAN. The range is 1–4094. • portList is the port or port list. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 131: Chapter 12: Mlt And Smlt Link Aggregation Configuration Using The Acli

    Chapter 12: MLT and SMLT link aggregation configuration using the ACLI Configure link aggregation to provide link level redundancy and increase load sharing. Multi-Link Trunking (MLT) is a link aggregation technology that allows grouping several physical Ethernet links into one logical Ethernet link to provide fault-tolerance and high-speed links between routers, switches, and servers.

  • Page 132: Configuring An Mlt

    Adds ports to this MLT. <mlt ID> Specifies the MLT ID in the range of 1–256. name <0-20> Changes the name for this MLT in the range of 0–20 characters. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 133: Adding Ports To An Mlt Lag

    Adding ports to an MLT LAG Variable Value ntstg enable Enables NTSTG. The default value is true. Specifies a VLAN ID to add to this MLT. vlan <1–4094> Adding ports to an MLT LAG Add ports to an MLT LAG to add an existing VLAN to a link aggregation configuration. Prerequisites •...

  • Page 134: Configuring Lacp On An Mlt

    Use the data in the following table to help you use the lacp enable key <integer> command. Variables Value key <integer> Sets LACP aggregator key for a specific MLT. • integer is the LACP actor admin key. The default value is 0. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 135: Creating A Smlt From An Existing Mlt

    Configures the minimum number of active links (MinLink) required for the LAG to remain in forwarding state. If the number of active links falls below this number, the Avaya Ethernet Routing Switch 8800/8600 declares the entire LAG down. The default value is 1. system-priority <integer>...

  • Page 136: Creating An Interswitch Trunk

    Use the data in the following table to help you use the ist peer-ip command. Variable Value <A.B.C.D> Specify the peer IP address—the IP address of the IST VLAN on the other aggregation switch. <1–4094> Specify the VLAN ID. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 137: Enabling An Interswitch Trunk

    Enabling an interswitch trunk Enabling an interswitch trunk Enable an interswitch trunk. Prerequisites • You must log on to the Global configuration mode in the ACLI. Procedure steps 1. To log on to the Interface MLT Configuration mode for the MLT that you want to configure enter the following at the Global configuration command prompt: interface mlt <mltid>...

  • Page 138: Configuring A Single Port Smlt

    The following example shows the commands that you use to delete an interswitch trunk. Procedure steps 1. From Global configuration mode, log into the MLT interface: ERS-8600:6(config)# interface mlt 2 2. Disable the IST: ERS-8600:6(config)# no ist enable 3. Delete the IST:...

  • Page 139: Enabling Smlt Interoperability With Mstp Using Acli

    Enabling SMLT Interoperability with MSTP using ACLI Procedure steps 1. Configure a single port SMLT by using the following command: smlt <smltID> Variable definitions Use the data in the following table to help you use the smlt <smltid> command. Variable Value <smltid>...

  • Page 140: Displaying Mlt Ist Information Using Acli

    View the MLT port calculated by the MLT hash algorithm to obtain information about the MLT port calculated by the distribution algorithm for R, RS, and 8800 modules. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 141: Mlt And Smlt Show Commands

    MLT and SMLT show commands Prerequisites • You must log on to the Global Configuration mode in the ACLI. View the MLT port calculated by the MLT hash algorithm to view the MLT port calculated by the distribution algorithm for R, RS, and 8800 modules. Procedure steps 1.

  • Page 142: Mlt And Smlt Show Commands Navigation

    Use the data in the following table to help you use the show mlt error collision command. Variable Value <mltid> Specifies the MLT ID. The value ranges from 1– 256. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 143: Viewing Information About Ethernet Errors

    MLT and SMLT show commands Viewing information about Ethernet errors View information about Ethernet errors to display information about the types of Ethernet errors sent and received by the specified MLT or all MLTs. Important: The IMAC columns refer to internal MAC address errors. Prerequisites •...
  • Page 144 Value {fastethernet|gigabitethernet|pos} Displays SMLT information for the interface and [<portList>] ports that you specify. • portList is the port or port list. Displays SMLT information for the MLT interface. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 145: Chapter 13: Vlacp Configuration Using The Acli

    ACLI Configure Virtual LACP (VLACP) to implement link status control protocol at the port level. VLACP detects for end-to-end failures in the Avaya Ethernet Routing Switch 8800/8600. Note that VLACP cannot interoperate with LACP. Job aid: Roadmap of VLACP commands The following table lists the commands and their parameters that you use to complete the procedures in this section.

  • Page 146: Configuring Vlacp On A Port

    The default value is disable. ethertype <1-65535> Sets the VLACP protocol identification for this port. fast-periodic-time <10-20000> Sets the fast periodic time (in milliseconds) for this port. The default value is 200. Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 147: Viewing The Vlacp Port Configuration

    Viewing the VLACP port configuration Variable Value funcmac-addr Sets the multicast MAC address used for the <0x00:0x00:0x00:0x00:0x00:0x00> VLACPDU. Specify a MAC address in the format 0x00:0x00:0x00:0x00:0x00:0x00. slow-periodic-time <10000-30000> Sets the slow periodic time (in milliseconds) for a specific port type. The default value is 30000.

  • Page 148: Enabling Or Disabling Vlacp Globally

    You must log on to the Global configuration mode in the ACLI. Procedure steps 1. To globally enable VLACP, use the following command: vlacp enable 2. To globally disable VLACP, use the following command: Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 149: Configuring Vlacp Flap Detect And Damping

    Configuring VLACP flap detect and damping no vlacp enable Configuring VLACP flap detect and damping Configure VLACP flap detect and damping to automatically shut down a VLACP link that is flapping. Prerequisites • You must log on to the Interface Configuration mode in the ACLI. •...

  • Page 150: Viewing Vlacp Flap Detect And Damping Configuration

    Procedure steps 1. To view VLACP configuration and VLACP Flap information, use the following command: show vlacp 2. To clear VLACP information, use the following command: clear vlacp flap-stats port Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...
  • Page 151 Viewing VLACP flap detect and damping configuration Variable definitions The following table defines the parameters that you enter with the show vlacp command. Variable Value Shows the current configured value for interface gigabitethernet VLACP at the interface. <port> vid <vid> •...
  • Page 152 VLACP configuration using the ACLI Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 153: Chapter 14: Customer Service

    Chapter 14: Customer Service Visit the Avaya Web site to access the complete range of services and support that Avaya provides. Go www.avaya.com or go to one of the pages listed in the following sections. Getting technical documentation To download and print selected technical publications and release notes directly from the Internet, go to www.avaya.com/support.
  • Page 154 Customer Service Configuration — Link Aggregation, MLT, and SMLT January 2012 Comments? infodev@avaya.com...

  • Page 155: Glossary

    Glossary Address Maps an IP address to a physical machine address, for example, maps Resolution an IP address to an Ethernet media access control (MAC) address. Protocol (ARP) Border Gateway An inter-domain routing protocol that provides loop-free inter-domain Protocol (BGP) routing between Autonomous Systems (AS) or within an AS.
  • Page 156 Split MultiLink An Avaya extension to IEEE 802.1AX (link aggregation), provides nodal Trunking (SMLT) and link failure protection and flexible bandwidth scaling to improve on the level of Layer 2 resiliency.

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