With an NP-based linecard, lots of stats are available that can help identify the cause of droppped input frames by using the show controllers np counters command. Is there an equivalent for SIP / SPA based cards?
To add a little more detail, Alexander's document, (https://supportforums.cisco.com/docs/DOC-15552) recommends using the "show controller np ports all location 0/Y/CPU0" to map ports to NP. This works great for Ethernet ports but no mention of SIP / SPA ports is made in the output. Perhaps there is another way to map SIP / SPA to NP, or perhaps it uses a different architectural element?
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...