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Apr 29 / Greg

Unimus Fails To Discover ASR9000 IOS-XR Routers Via Telnet

It appears that Unimus has an inter-connection timeout of 250Ms, and when telnetting to a Cisco ASR9K it needs to be adjusted to something more like 1 second.
It seems that when a telnet session is opened to cisco via the discovery mechanism(trying to figure out if telnet is open), then instantly tries another connection to login, the Cisco router will fail the connection. Changing this timer puts more of a gap in this process which prevents the failure. I likely got something wrong in the translation there, but you get the idea.

The Unimus wiki shows you how to adjust timers.

The line in particular is:

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