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Cisco Systems 7600 manual

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Table of contents for the manual

  • Page 1

    CH A P T E R 12-1 Cisco 7600 Series Router Cisco IOS Softwa re C onfiguration Guide, Release 12.2SX OL-4266-08 12 Configuring EtherChannels This chapter describes ho w to con figu re EtherChanne ls on the Cisco 7600 series router Layer 2 or Layer 3 LAN ports. Note For complete syntax and usage info rmation for th e command s used in this chapter , [...]

  • Page 2

    12-2 Cisco 7600 Series Router Cisco IOS Software Configura tion Guide, Release 12.2SX OL-4266-08 Chapter 12 Config uring EtherChannels Understanding How Ethe rChannels Work EtherChannel Feature Overview An EtherChannel b undles indi vidual Ethernet li nks into a sing le logical link th at provides the aggre gate bandwidth o f up to eight physical l[...]

  • Page 3

    12-3 Cisco 7600 Series Router Cisco IOS Softwa re C onfiguration Guide, Release 12.2SX OL-4266-08 Chapter 12 Configuring EtherChannels Understanding How EtherCh annels Work Understanding Manual EtherCh annel Configuration Manually conf igured EtherChannel ports do not exch ange EtherChannel p rotocol packets. A manually confi gured EtherChannel for[...]

  • Page 4

    12-4 Cisco 7600 Series Router Cisco IOS Software Configura tion Guide, Release 12.2SX OL-4266-08 Chapter 12 Config uring EtherChannels Understanding How Ethe rChannels Work Understanding IEEE 802.3ad LACP EtherChannel Configuration LA CP supports the automatic creation of EtherChannels b y exchanging LA CP packets between LAN ports. LA CP packets a[...]

  • Page 5

    12-5 Cisco 7600 Series Router Cisco IOS Softwa re C onfiguration Guide, Release 12.2SX OL-4266-08 Chapter 12 Configuring EtherChannels EtherChannel Feature Configura tion Guidelines and Restrictions Understanding Port Channel Interfaces Each EtherChannel has a numbered por t ch annel interface. W ith Releas e 12.2(18)SXE and later release s, you ca[...]

  • Page 6

    12-6 Cisco 7600 Series Router Cisco IOS Software Configura tion Guide, Release 12.2SX OL-4266-08 Chapter 12 Config uring EtherChannels EtherChannel Feature Configuration Guidelines and Restrictions • When you add a member por t that does not support ISL t runking to an EtherChannel, Cisco IOS software automatically add s a switchport trunk encaps[...]

  • Page 7

    12-7 Cisco 7600 Series Router Cisco IOS Softwa re C onfiguration Guide, Release 12.2SX OL-4266-08 Chapter 12 Configuring EtherChannels Configuring EtherChannels Serious traff ic problems can result if an EtherChannel forms from ports that pass data thro ugh the swit ch in signif icantly dif ferent ways. F or example, ports on modules with and witho[...]

  • Page 8

    12-8 Cisco 7600 Series Router Cisco IOS Software Configura tion Guide, Release 12.2SX OL-4266-08 Chapter 12 Config uring EtherChannels Configuring EtherCh annels W ith Release 12.2 (18)SXE an d later rele ases, the gr oup_number can be 1 thro ugh 256, up to a maximum of 128 port-channel inter faces. W ith releases earlier than Release 12.2(18)SXE, [...]

  • Page 9

    12-9 Cisco 7600 Series Router Cisco IOS Softwa re C onfiguration Guide, Release 12.2SX OL-4266-08 Chapter 12 Configuring EtherChannels Configuring EtherChannels This exampl e sho ws ho w to conf igure Fast Ethernet ports 5/6 and 5/7 into por t channel 2 with P AgP mode desirable : Router# configure terminal Router(config)# interface range fastether[...]

  • Page 10

    12-10 Cisco 7600 Series Router Cisco IOS Software Configura tion Guide, Release 12.2SX OL-4266-08 Chapter 12 Config uring EtherChannels Configuring EtherCh annels Router# show interfaces fastethernet 5/6 etherchannel Port state = Down Not-in-Bndl Channel group = 12 Mode = Desirable-Sl Gcchange = 0 Port-channel = null GC = 0x00000000 Pseudo port-cha[...]

  • Page 11

    12-11 Cisco 7600 Series Router Cisco IOS Softwa re C onfiguration Guide, Release 12.2SX OL-4266-08 Chapter 12 Configuring EtherChannels Configuring EtherChannels Router(config)# This exampl e sho ws ho w to veri fy the conf iguration: Router# show lacp sys-id 23456,0050.3e8d.6400 Router# The system priority is displayed f irst, followed by the MA C[...]

  • Page 12

    12-12 Cisco 7600 Series Router Cisco IOS Software Configura tion Guide, Release 12.2SX OL-4266-08 Chapter 12 Config uring EtherChannels Configuring EtherCh annels Configuring the EtherChannel Min-Links Feature Note Release 12.2(18)SXF and later rel eases support the EtherChannel Min- Links feature. The EtherChannel Min-Links feature is supported on[...]