[f-nsp] (no subject)

[Eric Helm]

On 1/28/2010 1:55 PM, Randy McAnally wrote:

> 
> 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 config only, I omitted vlan config for the purpose of
> this email):
> 
> 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...because
> there isn't much else to configure on the Foundry!
> 
> Thanks in advance.
> 
> --
> Randy
> 

You have Dynamic (LACP) configured on the Cisco side and Static trunk
configured on the Foundry side. You should configure LACP on the Foundry
as well. Do not use the "trunk ethe 1 to 2" command to configure LACP:

int eth 1 to 2
 link-aggregate passive


/Eric