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Unable to execute commands through telnet/ssh session in IOS XR platform.

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Tue, 09/30/2014 - 21:51
Sep 30th, 2014
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Introduction:

This document created by user discussion and observed user cases.

Symptom:

When user login to XR platform with Telnet/ssh to the router prints incomplete output and then hangs. It does not respond to "ENTER". It may respond to CTRL-C but this does not restore a complete correct behavior. But they are working via console.

Example:

RP/0/RSP0/CPU0:BRSPOM1COMM-ASR9K-1#sh logging

Mon Sep 2 11:48:28.403 GMT

RP/0/RSP0/CPU0:BRSPOM1COMM-ASR9K-1#

RP/0/RSP0/CPU0:BRSPOM1COMM-ASR9K-1#dir

Mon Sep 2 11:53:11.518 GMT
  

Conditions:
  
This happens after multiple VTY sessions being opened and closed at the same time, or after a session has been terminated while still receiving output.
  
Workaround:
 
1) Using "terminal length 0" is a partial workaround.
  
Recovery:
  
1) Create a new telnet/ssh session. FIRST command to execute from this session is “proc restart devc-vty"OR 
  
2) Connect to the router through a Console port recovers by executing "proc restart devc-vty" command.

Known Affected Releases:
3.8.2.BASE
3.8.3.17i.BASE
3.8.3.19i.BASE
3.8.3.BASE
3.9.0.BASE
3.9.1.BASE
4.0.0.BASE
4.0.1.BASE

Known Fixed Releases:
3.9.2.99i.BASE
4.0.0.99i.BASE

Bug Information:

CSCte01589

https://tools.cisco.com/bugsearch/bug/CSCte01589
 

Document Source:

https://supportforums.cisco.com/discussion/11917731/commands-not-shows-ssh-asr9k

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