[c-nsp] m3600x-cx tx/rx of transit traffic STOPS when LFA repair path found (int enabled), 15.3(3)S1a; 15.3(3)S2.

[Vitkovský Adam]

Hi Folks,

Has anyone encountered an issue where me3600 stops forwarding transit traffic when LFA repair path is found over a newly enabled interface please?
This is on 15.3(3)S1a a well as on 15.3(3)S2.
Ping to directly connected interfaces works however anything behind the box either in global or VRF table is unreachable.

Only other thing that could cause this is that rLFA LDP tunnel is terminated at this router (i.e. this router is rLFA for some other box in the ring).

In any case once the ring is setup so that the router doesn't calculate (r)LFA it starts forwarding transit traffic again.

This behavior is persistent across reloads.

adam