Maybe you should also check for bidirectional faults on link. I guess that you have fiber connections...try using the command "udld aggressive" on both sides on ports. This way you could se if RX or TX is bad. udld would put your interface on bad side, to down and make a trap to logg.
Another thing you could check is the MPLS MTU size on GE links. If your running MPLS/LDP, the MTU size may have to be changed, due to additional headers (BGP/IP/MPLS/LDP.....).
Introduction: The "external-out enable" command is available for
configuration under the "router ospf process" in case of the IOS-XR
operating system. This command basically enables advertisement of
intra-area routes on the device as external routes in th...
IntroductionIn this article we'll discuss how to troubleshoot packet
loss in the asr9000 and specifically understanding the NP drop counters,
what they mean and what you can do to mitigate them. This document will
be an ongoing effort to improve troublesh...