On 29/10/2009, at 5:02 PM, Colin Whittaker wrote:

Would fast rate LACP help here. Should be able to get lacp to notice
that the link is missing in < 5 seconds

Interesting thought. Not that familiar with LACP. I can say for sure that PAgP is relying on IOS's understanding of link state so until the interface drops you just black-hole traffic down a port-channel member that doesn't go anywhere. UDLD Aggressive will yank the interface down and pull it from the port-channel, _ eventually _

Does LACP do more end-to-end signalling that could help here?


David
...

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