HP 6125G Configuration Manual
6125 blade switch series irf configuration guide
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Also See for 6125G:
- Command reference manual (426 pages) ,
- Configuration manual (379 pages) ,
- Release note (60 pages)
Related Manuals for HP 6125G
Summary of Contents for HP 6125G
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Page 1: Configuration Guide
HP 6125 Blade Switch Series Configuration Guide Part number: 5998-3154 Software version: Release 2103 Document version: 6W100-20120907... - Page 2 HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
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Page 3: Table Of Contents
Contents IRF overview ································································································································································· 1 IRF benefits ········································································································································································· 1 Application scenario ························································································································································· 1 Basic concepts ··································································································································································· 2 IRF member roles ······················································································································································ 2 IRF member ID ··························································································································································· 2 IRF port ······································································································································································ 2 Physical IRF port ······················································································································································· 3 ... - Page 4 Displaying and maintaining an IRF fabric ··················································································································· 28 Configuration examples ················································································································································ 28 LACP MAD-enabled IRF configuration example ································································································· 28 BFD MAD-enabled IRF configuration example ··································································································· 31 ARP MAD-enabled IRF configuration example ··································································································· 33 Support and other resources ····································································································································· 36 ...
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Page 5: Irf Overview
IRF overview The HP Intelligent Resilient Framework (IRF) technology creates a large IRF fabric from multiple switches to provide data center class availability and scalability. IRF virtualization technology offers processing power, interaction, unified management, and uninterrupted maintenance of multiple switches. This book describes IRF concepts and guides you through the IRF setup procedure. -
Page 6: Basic Concepts
Figure 1 IRF application scenario Basic concepts This section describes the basic concepts that you might encounter when working with IRF. IRF member roles IRF uses two member roles: master and slave (called "subordinate" throughout the documentation). When switches form an IRF fabric, they elect a master to manage the IRF fabric, and all other switches back up the master. -
Page 7: Physical Irf Port
For two neighboring devices, their IRF physical links must be bound to IRF-port 1 on one device and to IRF-port 2 on the other. Physical IRF port Physical IRF ports connect IRF member devices and must be bound to an IRF port. They forward IRF protocol packets between IRF member devices and data packets that must travel across IRF member devices. -
Page 8: Irf Merge
forwarding problems on the network. To quickly detect a multi-active collision, configure at least one MAD mechanisms (see "IRF multi-active detection"). Figure 3 IRF split IRF merge IRF merge occurs when two split IRF fabrics re-unite or when you configure and connect two independent IRF fabrics to be one IRF fabric, as shown in Figure Figure 4 IRF merge... -
Page 9: File System Naming Conventions
[Master] interface gigabitethernet 3/0/1 [Master-GigabitEthernet3/0/1] port link-type trunk File system naming conventions On a standalone switch, you can use the name of storage device to access its file system. For more information about storage device naming conventions, see Fundamentals Configuration Guide. On an IRF fabric, you can use the name of storage device to access the file system of the master. -
Page 10: Configuration Synchronization Mechanism
Configuration synchronization mechanism IRF uses a strict running-configuration synchronization mechanism so all chassis in an IRF fabric can work as a single node, and after the master fails, other members can operate normally. In an IRF fabric, all chassis get and run the running configuration of the master. Any configuration you have made is propagated to all members. -
Page 11: Lacp Mad
Detection The MAD implementation of the switch detects active IRF fabrics with the same Layer 3 global configuration by extending the LACP, BFD, or gratuitous ARP protocol. These MAD mechanisms identify each IRF fabric with a domain ID and an active ID (the member ID of the master). -
Page 12: Bfd Mad
Figure 5 LACP MAD application scenario BFD MAD BFD MAD can work with or without intermediate devices. Figure 6 shows a typical BFD MAD application scenario. To use BFD MAD: Set up dedicated BFD MAD link between each pair of IRF members or between each IRF member •... -
Page 13: Arp Mad
Figure 6 BFD MAD application scenario ARP MAD ARP MAD detects multi-active collisions by using extended gratuitous ARP packets that convey the IRF domain ID and the active ID. You can set up ARP MAD links between neighbor IRF member devices, or more commonly, between each IRF member device and an intermediate device (see Figure 7). - Page 14 Figure 7 ARP MAD application scenario Each IRF member compares the domain ID and the active ID in incoming extended gratuitous ARP packets with its domain ID and active ID: If the domain IDs are different, the extended gratuitous ARP packet is from a different IRF fabric, and •...
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Page 15: Configuring Irf
The HP 6125G/XG switch supports up to four physical ports for an IRF port. IRF physical port restrictions and cabling requirements On the HP 6125G blade switch, candidate IRF physical ports are the two IRF/SFP ports. On the HP 6125G/XG blade switch, candidate IRF physical ports are the four SFP+ ports. -
Page 16: Setup And Configuration Task List
Assign each member a unique IRF member ID to make sure they can merge. You must reboot the • members to validate the IRF member ID settings. Assign the highest member priority to the device you want to use as the master. •... -
Page 17: Planning The Irf Fabric Setup
Task Remarks This task is required for ARP MAD Assigning an IRF domain ID to the IRF fabric and LACP MAD. Configuring a member switch description Optional. Configuring IRF bridge MAC persistence Optional. Optional. HP recommends enabling 10. Enabling software auto-update for system software image software auto-update to make sure synchronization system software image... -
Page 18: Specifying A Priority For Each Member Switch
The new member ID takes effect at a reboot. After the switch reboots, the settings on all member-ID related physical resources (including common physical network ports) are removed and require reconfiguration, regardless of whether you have saved the configuration. To set a member ID for a switch: Step Command Remarks... -
Page 19: Binding Physical Ports To Irf Ports
Figure 9 Connecting IRF physical ports Connect the switches into a daisy chain topology or more reliably, a ring topology (see Figure 10). In ring topology, the failure of one IRF link does not cause the IRF fabric to split as in daisy chain topology. Rather, the IRF fabric changes to a daisy chain topology without interrupting network services. - Page 20 Step Command Remarks • Enter interface range view: Approach 1: interface range { interface-type interface-number [ to interface-type interface-number ] } &<1-5> To shut down a range of physical IRF Approach 2: ports, enter interface range view. Enter Ethernet interface view interface range name or interface range view.
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Page 21: Accessing The Irf Fabric
Step Command Remarks • Enter interface range view: Approach 1: interface range { interface-type interface-number [ to interface-type interface-number ] } &<1-5> Approach 2: Enter Ethernet interface view interface range name or interface range view. name [ interface { interface-type interface-number [ to interface-type interface-number ] }... -
Page 22: Accessing The Cli Of A Subordinate Switch
Remote login—Remotely log in at a Layer 3 Ethernet interface on any member switch by using a • methods including Telnet, Web, and SNMP. For more information, see the chapter on login in Fundamentals Configuration Guide. Accessing the CLI of a subordinate switch You can log in to the CLI of a subordinate switch for maintenance or debugging. -
Page 23: Configuring Irf Bridge Mac Persistence
Step Command Remarks Enter system view. system-view Configure the description of By default, no member switch irf member member-id description text a member. description is configured. Configuring IRF bridge MAC persistence An IRF fabric by default uses the bridge MAC address of the master switch as its bridge MAC address. This bridge MAC address is used by Layer 2 protocols, for example, LACP, to identify the IRF fabric, and must be unique on a switched LAN for proper communication. -
Page 24: Enabling Software Auto-Update For System Software Image Synchronization
Step Command Remarks • Keep the bridge MAC address unchanged even if the master has changed: irf mac-address persistent always By default, the IRF fabric's • Preserve the bridge MAC address Configure IRF bridge MAC bridge MAC address persists for six minutes after the master persistence. -
Page 25: Setting The Irf Link Down Report Delay
For the system software image and Boot ROM compatibility, see the release notes for the new software release. Setting the IRF link down report delay You can avoid IRF link flapping causing frequent IRF splits and merges during a short time by configuring the IRF ports to delay reporting link down events. -
Page 26: Configuring Lacp Mad
Table 1 A comparison of the MAD mechanisms Advantages Disadvantages Application scenario mechanism Link aggregation is used between the IRF fabric and its upstream or • Detection speed is fast. Requires an intermediate HP downstream device. LACP MAD • device that supports LACP Requires no MAD-dedicated For information about MAD packets. -
Page 27: Configuring Bfd Mad
Step Command Remarks Assign a domain ID to the IRF irf domain domain-id The default IRF domain ID is 0. fabric. Create a Layer 2 aggregate interface bridge-aggregation Perform this step also on the interface and enter interface-number intermediate device. aggregate interface view. - Page 28 Step Command Remarks Enter system view. system-view Create a VLAN dedicated to The default VLAN on the switch vlan vlan-id BFD MAD. is VLAN 1. Return to system view. quit • Enter interface range view: Approach 1: interface range { interface-type interface-number [ to interface-type To assign a range of ports to the...
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Page 29: Configuring Arp Mad
NOTE: After a BFD MAD-enabled IRF fabric splits, route conflict messages (for example, %May 16:15:47:733 2010 HP ARP/3/ROUTECONFLICT: Slot=5;Route conflict found, IP:192.168.2.1, VrfIndex:0) might appear on the fabric part that does not have the original master, because this fabric part still keeps the forwarding entries with the original master as the destination. -
Page 30: Excluding A Port From The Shutdown Action Upon Detection Of Multi-Active Collision
Step Command Remarks • Assign the port to the VLAN as an access port: Choose one command port access vlan vlan-id depending on the port type. • Assign the port to the VLAN as a Assign the port or the range trunk port: ARP MAD has no requirement of ports to the ARP MAD... -
Page 31: Recovering An Irf Fabric
Recovering an IRF fabric After the failed IRF link between two split IRF fabrics is recovered, log in to the Recovery-state IRF fabric, and use the reboot command to reboot all its members. After these member switches join the Active-state IRF fabric as subordinates, IRF merge is complete, as shown in Figure 1 Figure 11 Recovering the IRF fabric... -
Page 32: Displaying And Maintaining An Irf Fabric
Step Command Enter system view. system-view Change the state of the IRF fabric from mad restore Recovery to Active. After the IRF fabric is recovered, all ports that have been shut down by MAD automatically come up. Displaying and maintaining an IRF fabric Task Command Remarks... -
Page 33: Configuration Procedure
Figure 13 Network diagram Device C IP network GE1/0/1 GE1/0/2 GE1/0/2 GE2/0/1 XGE1/1/2 XGE2/1/1 (IRF-port1/2) (IRF-port2/1) Device A Device B Configuration procedure This example assumes that the system names of Device A, Device B and Device C are DeviceA, DeviceB, and DeviceC respectively before the IRF fabric is formed. - Page 34 [DeviceB] irf-port 2/1 [DeviceB-irf-port2/1] port group interface ten-gigabitethernet 2/1/1 [DeviceB-irf-port2/1] quit [DeviceB] interface ten-gigabitethernet 2/1/1 [DeviceB-Ten-GigabitEthernet2/1/1] undo shutdown [DeviceB-Ten-GigabitEthernet2/1/1] save # Activate IRF port configuration on Device A. [DeviceA-Ten-GigabitEthernet1/1/2] quit [DeviceA] irf-port-configuration active # Activate IRF port configuration on Device B. [DeviceB-Ten-GigabitEthernet2/1/1] quit [DeviceB] irf-port-configuration active After the IRF port configuration is activated, the two devices automatically elect a master.
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Page 35: Bfd Mad-Enabled Irf Configuration Example
BFD MAD-enabled IRF configuration example Network requirements Set up an IRF fabric at the distribution layer of the network in Figure 14. Configure BFD MAD in the IRF fabric and set up BFD MAD links between the member devices. Disable the spanning tree feature on the ports used for BFD MAD, because the two features conflict with each other. - Page 36 [DeviceA] interface ten-gigabitethernet 1/1/2 [DeviceA-Ten-GigabitEthernet1/1/2] shutdown [DeviceA-Ten-GigabitEthernet1/1/2] quit [DeviceA] irf-port 1/2 [DeviceA-irf-port1/2] port group interface ten-gigabitethernet 1/1/2 [DeviceA-irf-port1/2] quit [DeviceA] interface ten-gigabitethernet 1/1/2 [DeviceA-Ten-GigabitEthernet1/1/2] undo shutdown [DeviceA-Ten-GigabitEthernet1/1/2] save # Bind Ten-GigabitEthernet 2/1/1 to IRF-port 2/1 and save the configuration. <DeviceB> system-view [DeviceB] interface ten-gigabitethernet 2/1/1 [DeviceB-Ten-GigabitEthernet2/1/1] shutdown [DeviceB-Ten-GigabitEthernet2/1/1] quit...
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Page 37: Arp Mad-Enabled Irf Configuration Example
[DeviceA-if-range] quit ARP MAD-enabled IRF configuration example Network requirements Set up an IRF fabric in the enterprise network in Figure 15. Configure ARP MAD in the IRF fabric and use the links connected to Device C for transmitting ARP MAD packets. To prevent loops, run the spanning tree feature between Device C and the IRF fabric. - Page 38 [DeviceA-irf-port1/2] quit [DeviceA] interface ten-gigabitethernet 1/1/2 [DeviceA-Ten-GigabitEthernet1/1/2] undo shutdown [DeviceA-Ten-GigabitEthernet1/1/2] save # Bind Ten-GigabitEthernet 2/1/1 to IRF-port 2/1 on Device B and save the configuration. <DeviceB> system-view [DeviceB] interface ten-gigabitethernet 2/1/1 [DeviceB-Ten-GigabitEthernet2/1/1] shutdown [DeviceB-Ten-GigabitEthernet2/1/1] quit [DeviceB] irf-port 2/1 [DeviceB-irf-port2/1] port group interface ten-gigabitethernet 2/1/1 [DeviceB-irf-port2/1] quit [DeviceB] interface ten-gigabitethernet 2/1/1 [DeviceB-Ten-GigabitEthernet2/1/1] undo shutdown...
- Page 39 <DeviceC> system-view [DeviceC] stp enable # Create VLAN 3, and add GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to VLAN 3. [DeviceC] vlan 3 [DeviceC-vlan3] port gigabitethernet 1/0/1 gigabitethernet 1/0/2 [DeviceC-vlan3] quit...
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Page 40: Support And Other Resources
Support and other resources Contacting HP For worldwide technical support information, see the HP support website: http://www.hp.com/support Before contacting HP, collect the following information: Product model names and numbers • • Technical support registration number (if applicable) Product serial numbers •... -
Page 41: 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 42 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.
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Page 43: Index
Index A B C D E F G I M P R S Enabling software auto-update for system software image synchronization,20 Accessing the IRF fabric,17 Application scenario,1 File system naming conventions,5 Assigning a member ID to each IRF member switch,13 Assigning an IRF domain ID to the IRF fabric,18 General restrictions and configuration...