Hi people !
I have an issue on blade AIX, with NIB etherchannel on 2 I/O modules CISCO 3012
the ports on the switch cisco are same configured :
switchport trunk native vlan 150
switchport trunk allowed vlan 150,70
Etherchannel ent2 on AIX is configured with his primary and backup (with ping address as failover detection to 10.60.150.254):
en2 : 10.60.150.51
en3 (VLAN 70) = 10.60.70.51
Here's the problem:
When I'am on backup interface (to cisco3012 n°2,then backbone 2), ping success to vlan 150
When I'am on primary interface (to cisco3012 n°1,then backbone 1), ping failed to vlan 150
The link between cisco in the blade and backbone is linkaggregation with 4 link.
tcpdump on the aix show us the output traffic(10.60.150.XX) is untagged
We see some arp request come input traffic tagged with vlan 2684 (it's too weird) , so AIX doesn't reply.
We guess it's not a good choice to specify vlan 150 as native vlan & trunk allowed vlan at the same time...but we're not sure,because even when vlan 150 is removed from allowed vlan list (still in native), the behavior is the same...
Any idea ? (2 days stuck)
Pinned topic Blade & cisco module : vlan tagging issue
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Updated on 2013-02-01T15:15:41Z at 2013-02-01T15:15:41Z by Frenchy59
SystemAdmin 110000D4XK6902 Posts
Re: Blade & cisco module : vlan tagging issue2013-01-21T13:01:14ZThis is the accepted answer. This is the accepted answer.Hello,
We are facing the exact same problem,
Declaring the said vlan 2684 on the AIX system works, so this vlan appear to be a default behaviour when something else is missing.
Any though ?
Frenchy59 270004UHHD12 Posts
Re: Blade & cisco module : vlan tagging issue2013-02-01T15:15:41ZThis is the accepted answer. This is the accepted answer.This issue is solved.
blade has been unplugged & plugged.
The Vlan 2684 is gone, and there isn't receive errors on this interface anymore.