the message says that a HELLO packet contains a reserved circuit type equal to zero, while the system was expecting to get type 1 or 2 or 1/2. If you are running some sort of an emulator, then it is a known glitch which you might rectify by simply having the instances restarted. If this is a real gear, you might do a interface reset. You also could set up a sniffer capture and dig it a bit further. From troubleshooting point of view worth of interest is to check the full log on the node you're seeing these messages, as well as to check its peer on gig3/0(ca01.1320.0038).
Hi, I do not understand "the instances restarted" part, what do you mean by instances? (Interface? isis process? or line card?) I tried to reboot the GNS box, but still getting same ISIS error messages.
In EVPN A/A + IRB both PE in same EVI have BVI playing a default GW role. Its not supported to have BVI to be shutdown on one of PEs, In this case if if traffic hit this PE with DMAc equal to BVI Custom MAC, then it will drop this traffic du...
Crosswork Cloud - Crosswork Traffic Analysis - FAQ
Crosswork Cloud - Crosswork Traffic Analysis is a Cloud-hosted Software as a Service platform that provides Netflow based Traffic Analytics. The Crosswork Traffic Analysis platform Traffic Analysis, Peeri...
Cisco Champion Radio · S8|E9 Innovations to Achieve a Trustworthy Infrastructure
How do you know for certain that a router in your network has not been altered with since you deployed it? Wouldn’t it be great if you can cryptographically challenge your r...
IOS upgrade on asr9xx mandates rommon upgrades sometimes while they can be optional at other times. You may land up in unwanted situation if proper procedure is not followed during upgrades.
This article will include complete details about rommon ...
In some situation NCS560 RP become unresponsive after reload or powercycle.
In many NCS560 deployments are in remote location, deployment might be large and human intervention should be kept at minimum
Engineering team have been working on a str...