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Community Member

HSSI line protocol stays down after fault resolution.

I've noticed that the line protocol on my Frame Realy HSSI physical interface stays down after a fault condition has been restored. A "shut - no shut" of the interface brings it back up which is something I've noticed with Ethernets before. Is there something I can configure to get the router to attempt a restart of the interface. I tried the interface command "serial restart-delay 10" but the router didn't accept the command. Is "pulse-time" applicable for this?

IOS is 12.2(3d).

Thanks, Steve.

1 REPLY
Community Member

Re: HSSI line protocol stays down after fault resolution.

Steve,

You may be running into a situation where output / input packets are being dropped at the interface after a fault condition. Sort of a wedge. Do you know what the input / output queue counters read after this fault condition? Also, is it possible for you to debug frame LMI when this occurs to see if the LMIs are being properly exchanged with the right sequence numbers? You may be hitting a caveat, and really like you discovered, the serial restart-delay is not appropriate here.

Victor

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