are you sure it is a vic-2fxs and not a vic2-2fxs ?
If so then either a defective card or you may have a counterfeit card (they are out there ) does card have a sticker on it that shows an american flag and made in USA ? if so it is a counterfeit card. If it is a vic2-2fxs you cannot use it in a 1751.
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...