[c-nsp] port-channel help (warning, might be dumb)

Randy McAnally rsm at fast-serv.com
Thu Jan 28 14:39:57 EST 2010


I'm trying to configure a LACP port-channel between Cisco 6509 and Foundry FESX.

Cisco config:

interface Port-channel1
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 2,28
 switchport mode trunk
 no ip address
!
interface GigabitEthernet1/5
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 2,28
 switchport mode trunk
 no ip address
 channel-protocol lacp
 channel-group 1 mode active
!
interface GigabitEthernet1/6
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 2,28
 switchport mode trunk
 no ip address
 channel-protocol lacp
 channel-group 1 mode active
!

Foundry config:

trunk ethe 1 to 2
trunk deploy


After everything is seemingly up and running on the Foundry side (trunk
active), I notice some intermittent connectivity, along with Arp traffic
looping back from the Cisco.  So I check the Cisco and po1 is 'down', no trunk...

#sh int po1
Port-channel1 is down, line protocol is down (notconnect)
 Hardware is EtherChannel, address is 0013.6067.899a (bia 0013.6067.899a)
 MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
<--snip--> 

I hope I'm just missing something really stupid on the Cisco side...

Thanks in advance.

--
Randy




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