Remote Failure Detection

[mohamad khayat]

Hi all, 

I am facing issue with Etherchannel detects a physical link down. I have two sites connected by Layer 2 VPN controlled by the service provider (they are using huwawi equipment's). i am using 2960s stacked switches and i configured port channel on both side. i am using LACP. the issue is the switch over between the primary link and secondary link takes around 60 seconds. The link state message takes that time to arrive to other side. i tried to use UDLD but that didn't solve the issue. is there any way to decrease the timing to make the switch over transparent to the users? Kindly help me with this since i was trying to solve this issue since long time ago :(

[Joseph W. Doherty]

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Posting

Some LACP capable devices support fast LACP; don't know if your 2960s do.

See if the interface command, lacp rate fast, is supported.

[mohamad khayat]

Hi Joseph,

Thanks for you reply. unfortunately i tried this command but its not supported in 2960s.

Any other idea please?

[Joseph W. Doherty]

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

Sorry, none for a port-channel.