[c-nsp] MPLS dies permanently after low mem condition

[Garry]

Hi,

we just recently had another issue on a 7206 VXR (12.0(25)S1) we had 
encountered before some very long time ago ... after a low-memory 
condition, the router ceases forwarding MPLS-tagged packets, with now 
appearent way of recovery except reboot ... I tried shutting down MPLS 
on all links (FE/POS) by "no mpls ip", tried shutting down links 
completely, to no avail.

On MPLS level, I noticed that a traceroute inside the MPLS backbone 
would list that router as not using MPLS anymore, contrary to the 
"usual" output ...

Is this a known issue of this (ancient) IOS? Apart from this issue, we 
have not had any problems with the router, happily enjoying a well over 
1yr uptime (surviving even PA-changes without any ill behavior), so I'm 
a bit hesitant to actual change this IOS ...

Thanks, -gg