Monday, July 1, 2013

Cross-Stack EtherChannel (layer 2 EtherChannel)



Configuration in both Stack Switch A and B

  • interface range G1/0/25, G2/0/25
  • shutdown !! best practice 
  • channel-group 12 mode active
  • switchport trunk encap dot1q
  • switchport mode trunk
  • switchport trunk allow vlan 2,3,4

  • interface port-channel 12
  • switchport trunk encap dot1q
  • switchport mode trunk
  • switchport trunk allow vlan 2,3,4 !! allow whatever vlan, here

  • interface range G1/0/25, G2/0/25
  • no shutdown !! do this after configured both sides




Benefits

  • Redundancy
  • High Bandwidth

Port-channel ID is locally significant.
Ether-channel formation on different "Port-channel ID" is theoretically possible. 

Want to see from Cisco, click HERE

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