OSPF Issue

[Michele Toblini]

Hello,

We got one couple 4500x in vss with this release IOS XE Release 3.4.6SG and one couple of 6800 also in vss. We configured a span with source the port-channel that connects the switches going to a security appliance. 

The ospf neighbor went down and it came up as soon as we shutted down the port of the appliance.

I searched for a known bug but i couldn't find anything.

Thoughts?

Thanks

Michele

 

[Jaderson Pessoa]

@Michele Toblini  hello,

Is there any vlan associate on this port-channel?  If yes, this vlan is created just for span?

Only traffic that enters or leaves source ports or traffic that enters or leaves source VLANs can be monitored by using SPAN; traffic routed to a source VLAN cannot be monitored. For example, if incoming traffic is being monitored, traffic that gets routed from another VLAN to the source VLAN cannot be monitored; however, traffic that is received on the source VLAN and routed to another VLAN can be monitored.

[Michele Toblini]

yeah all vlans are point to points on which ospf forms neighborship for different vrfs

[Jaderson Pessoa]

Could you share current configuration of this port-channel and current configuration of ospf?

[Michele Toblini]

I found the bug related to 4500-x, https://quickview.cloudapps.cisco.com/quickview/bug/CSCup89543

Problem solved :) Thanks for your help.