HP 6125XLG Blade Switch
TRILL
Part number: 5998-5383a
Software version: Release 240x
Document version: 6W101-20150515

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   Summary of Contents for HP 6125XLG

  • Page 1: Configuration Guide

    HP 6125XLG Blade Switch TRILL Configuration Guide Part number: 5998-5383a Software version: Release 240x Document version: 6W101-20150515...

  • Page 2

    The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.

  • Page 3: Table Of Contents

    Network requirements ··········································································································································· 17   Configuration procedure ······································································································································ 17   Verifying the configuration ··································································································································· 19   Support and other resources ····································································································································· 21   Contacting HP ································································································································································ 21   Subscription service ·············································································································································· 21   Related information ························································································································································ 21   Documents ······························································································································································ 21  ...

  • Page 4: Configuring Trill

    Configuring TRILL Transparent Interconnect of Lots of Links (TRILL) uses IS-IS to provide transparent Layer 2 forwarding. Overview TRILL combines the simplicity and flexibility of Layer 2 switching with the stability, scalability, and rapid convergence capability of Layer 3 routing. All these advantages make TRILL very suitable for large flat Layer 2 networks in data centers.

  • Page 5

    Figure 1 TRILL data frame format Table 1 describes the fields in the TRILL header. Table 1 TRILL header fields Field Description Ethertype The Ethertype is fixed to TRILL. Version number, which is 0. When an RB receives a TRILL frame, it checks the V field and drops the frame if the V field is not 0.

  • Page 6: How Trill Works

    How TRILL works TRILL establishes and maintains adjacencies between RBs by periodically advertising Hello frames, distributes LSPs among RB neighbors, and generates an LSDB for all RBs in the network. Based on the LSDB, each RB uses the SPF algorithm to calculate forwarding entries destined to other RBs. TRILL forwarding mechanisms Different types of frames are forwarded using different forwarding mechanisms.

  • Page 7

    Compute a TRILL distribution tree for each VLAN according to the LSDB. • • Use the TRILL distribution tree to guide the forwarding of multi-destination frames, which include multicast, broadcast, and unknown unicast frames in the VLAN. As shown in Figure 3, when a multicast frame from VLAN 10 enters the TRILL network, RB 1, which is an ingress RB, encapsulates the multicast frame into a TRILL frame.

  • Page 8: Protocols And Standards

    Figure 4 Multicast ECMP RB 3 RB 2 RB 4 RB 1 Cost = 1 TRILL distribution trees support Equal Cost Multiple Path (ECMP), also known as multicast ECMP. When multicast ECMP is enabled, TRILL assigns equal-cost links to different TRILL distributions trees. This improves the load sharing performance.

  • Page 9: Trill Configuration Task List

    HP recommends not enabling loop detection on TRILL ports, because TRILL networks prevent loops • from being generated. For more information about loopback detection, see Layer 2—LAN Switching Configuration Guide. • Do not configure the TPID for VLAN tags on RBs. For more information about TPIDs, see Layer 2 LAN Switching Configuration Guide.

  • Page 10: Configuration Procedure

    When you set up a TRILL network, avoid the case that multiple TRILL neighbors are established for • one RB port. When you plan a network, avoid the networks shown in Figure 5 Figure Figure 5 shows a typical network where two TRILL neighbors are established for the same port of an RB.

  • Page 11: Configuring The System Id And Nickname For An Rb

    Configuring the system ID and nickname for an RB The system ID and nickname of an RB are identifiers of the RB in the TRILL network. • System ID—Unique identifier of an RB in the TRILL network. The system ID can be automatically assigned or manually configured.

  • Page 12: Configuring The Drb Priority Of A Trill Port

    Configuring the DRB priority of a TRILL port On a broadcast network, TRILL must elect a DRB. An RB with a higher DRB priority is preferred. When two RBs have the same DRB priority, the RB with a higher MAC address takes precedence. To configure the DRB priority of a TRILL port: Step Command...

  • Page 13: Configuring The Announcing Vlans And Designated Vlan

    Configuring the announcing VLANs and designated VLAN The concepts and symbols used to describe a VLAN on a port are as follows: • Enabled VLAN—A VLAN enabled on the port. • Forwarding VLAN—A VLAN for which the port is the appointed port. •...

  • Page 14: Adjusting Lsp Parameters

    inhibits the local AVF for a certain time to avoid loops. When the inhibition time expires, if the RB is still the AVF of the VLAN, the RB restores the role of AVF. CSNP interval—On a broadcast network, the DRB advertises CSNPs at the CSNP interval to •...

  • Page 15

    complete LSDB because of insufficient memory, routing calculation errors occur. To make troubleshooting easier, temporarily exclude the RB from the TRILL network by setting the Overload bit for the LSPs sent by the failed RB. • Minimum LSP interval and maximum number of LSPs transmitted per time—To avoid frequent LSP aging in the network, RBs periodically advertise LSPs.

  • Page 16: Adjusting The Spf Algorithm Parameters

    Adjusting the SPF algorithm parameters Based on the LSDB, an RB uses the SPF algorithm to calculate a shortest path tree with itself as the root. The RB uses the shortest path tree to determine the next hop to a destination network. By adjusting the SFP calculation intervals, you can prevent resource overconsumption when the network changes frequently.

  • Page 17: Enabling Logging Of Trill Neighbor Changes

    Compute TRILL distribution trees according to the LSDB. • • Use the TRILL distribution trees to guide the forwarding of multicast, broadcast, and unknown unicast frames. An RB with a higher priority is selected as the root bridge of a TRILL distribution tree. An LSP carries TRILL distribution tree information that includes the following: The number of TRILL distribution trees that the RB wants all RBs to compute.

  • Page 18: Configuring Snmp For Trill

    Step Command Remarks Enter system view. system-view Enter TRILL view. trill Enable logging of TRILL By default, logging of TRILL neighbor changes log-peer-change enable neighbor changes. is enabled. Configuring SNMP for TRILL After you enable SNMP notification sending for TRILL, TRILL will generate notifications to notify NMS of important events on the local module and send the notifications to the SNMP module.

  • Page 19: Displaying And Maintaining Trill

    GR helper—A neighbor of the GR restarter. It helps the GR restarter to complete the GR process. • To configure TRILL GR: Step Command Remarks Enter system view. system-view Enter TRILL view. trill Enable GR for TRILL. graceful-restart By default, GR is disabled for TRILL. (Optional.) Configure graceful-restart interval The default setting is 300 seconds.

  • Page 20: Trill Configuration Example

    Configuration procedure This section provides only TRILL-related configurations. This section assumes that the access layer devices are the HP 6125XLG blade switches and the distribution layer devices are the HP 1 1900 switches. Configure the downlink ports of access layer devices: # Enable TRILL globally on RB 1, and enable TRILL on downlink port Ten-GigabitEthernet 1/0/1 of RB 1.

  • Page 21

    <RB1> system-view [RB1] trill [RB1-trill] quit [RB1] interface ten-gigabitethernet 1/0/1 [RB1-Ten-GigabitEthernet 1/0/1] trill enable [RB1-Ten-GigabitEthernet 1/0/1] quit # Configure RB 2 through RB 5 in the same way RB 1 is configured. Configure the uplink port of access layer devices: # Enable TRILL on uplink port FortyGigE 1/1/1 through FortyGigE 1/1/4 of RB 1, and configure these ports as trunk ports.

  • Page 22: Verifying The Configuration

    [RB6-FortyGigE1/0/4] trill link-type trunk [RB6-FortyGigE1/0/4] quit [RB6] interface fortygige 1/0/5 [RB6-FortyGigE1/0/5] trill enable [RB6-FortyGigE1/0/5] trill link-type trunk [RB6-FortyGigE1/0/5] quit # Configure RB 7 through RB 9 in the same way RB 6 is configured. Configure the uplink ports of the distribution layer devices: # Enable TRILL on uplink ports FortyGigE 1/0/6 and FortyGigE 1/0/7 of RB 6.

  • Page 23

    # Display brief information about all entries in the TRILL unicast routing table on RB 1. [RB1] display trill unicast-route Destination Interface NextHop --------------------------------------------------- 0x5801 0x5802 FGE1/1/1 0x5806 FGE1/1/2 0x5807 FGE1/1/3 0x5808 FGE1/1/4 0x5809 0x5803 FGE1/1/1 0x5806 FGE1/1/2 0x5807 FGE1/1/3 0x5808 FGE1/1/4 0x5809...

  • Page 24: Support And Other Resources

    Related information Documents To find related documents, browse to the Manuals page of the HP Business Support Center website: http://www.hp.com/support/manuals For related documentation, navigate to the Networking section, and select a networking category. •...

  • Page 25: Conventions

    Conventions This section describes the conventions used in this documentation set. Command conventions Convention Description Boldface Bold text represents commands and keywords that you enter literally as shown. Italic Italic text represents arguments that you replace with actual values. Square brackets enclose syntax choices (keywords or arguments) that are optional. Braces enclose a set of required syntax choices separated by vertical bars, from which { x | y | ...

  • Page 26

    Network topology icons Represents a generic network device, such as a router, switch, or firewall. Represents a routing-capable device, such as a router or Layer 3 switch. Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports Layer 2 forwarding and other Layer 2 features.

  • Page 27: Index

    Index TRILL distribution tree, access TRILL port priority, TRILL access port link, adjusting TRILL LSP parameters, enabling TRILL SPF algorithm parameters, TRILL, algorithm TRILL neighbor change logging, TRILL SPF algorithm parameter adjustment, appointed VLAN-x forwarder. See AVF format AVF (TRILL), TRILL control frame format, TRILL data frame format, calculating...

  • Page 28

    TRILL RB system ID, TRILL SNMP configuration, inhibition time (TRILL), TRILL SPF algorithm parameter adjustment, IS-IS TRILL timer configuration, TRILL configuration, 1, 6, network management TRILL basic concepts, TRILL configuration, 1, 6, Layer 2 nickname (TRILL), TRILL configuration, 1, 6, link TRILL SNMP configuration, TRILL configuration, 1, 6,...

  • Page 29

    LSP parameter adjustment, maintaining, neighbor change logging, TRILL nickname, port DRB priority configuration, TRILL system ID, port link cost configuration, restrictions port link type configuration, TRILL configuration, protocols and standards, route RB nickname configuration, TRILL equal-cost route configuration (unicast), RB system ID configuration, routing bridge SNMP configuration, TRILL,...

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