Cisco and Extreme interoperability – Part 2 – LACP

Wow…4+ years later and I’m finally posting part 2. Yep, the original config didn’t work quite right but I did get it working. Here’s the result:

On the Cisco switch:

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interface Port-channel98
no ip address
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet8/5
no ip address
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 98 mode on

etc...

On the Extreme switch:

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enable sharing 1:1 grouping 1:1,1:2,1:3,1:4 algorithm port-based
configure vlan "out_of_band" ipaddress 172.16.0.254 255.255.254.0
configure vlan "out_of_band" add port 7:1 untagged
configure vlan "out_of_band" add port 1:1 tagged

out_of_band was used for testing. I put a PC on port 7:1 on the Extreme switch to make sure I could get to a PC on the Cisco switch.

Turns out I did full documentation on the test process and actually kept the doc! I was amazed! My notes suggest the only delay was when re-connecting ports that are part of the group they would not start forwarding for about 3 seconds. Otherwise it worked great!