Preview Tool

Cisco Bug: CSCun61582 - sshd is in over state and unable to ssh to GGSN/PGW Combo

Last Modified

Jan 31, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0(1) 16.0(1)

Description (partial)

Customer Network Norway experience this same issue in their GGSN ASR5K chassis. They could not access to the the chassis using SSH when sshd task became over state.

 ******** show version verbose *******
Active Software:
  Image Version:                  14.0 (51375)
  Image Description:              Production_Build
  Image Date:                     Tue Aug 27 18:21:57 EDT 2013
  Boot Image:                     /flash/production.51375.asr5000.bin

[local]ulvggsn# sho task resources | grep -v good
Monday March 31 23:56:41 CEST 2014
                   task   cputime        memory     files      sessions
 cpu facility      inst used allc   used  alloc used allc  used  allc S status
----------------------- --------- ------------- --------- ------------- ------
 8/0 evlogd           0 0.1%  95% 82.07M 70.00M   20 4000    --    -- -   warn
 8/0 sshd       8005380 0.0%  30%   144K 15.00M  204  100    --    -- -   over
Total               295 758.79%   37.96G        6499       584k
  Kernel Version:                 2.6.38-staros-v3-hw-32
  Kernel Machine Type:            i686

Currently in ASR, the maximum number of ssh-connection accepted by sshd daemon is around 40 per minutes. If the number of ssh-connection exceeds this limit, then the new connection will not be accepted. This is the reason why chassis can't be accessed using SSH.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.