Cisco Bug: CSCus93980 - Ramdom SSH session disconnect happens on 5.1.3 using PUTTY
Feb 13, 2018
- Cisco ASR 9000 Series Aggregation Services Routers
Known Affected Releases
Symptom: We have upgraded 4 of our ASR 9006's this evening to IOS-XR 5.1.3. After the upgrade has been complete we are receiving random disconnects on our SSH sessions when running commands. We are using Putty as our client from a Windows box and the error from putty is "Disconnected: Received unsolicited SSH_MGS_CHANNEL_FAILURE. " This did not happen previously and only affects our sessions connecting to our IOS-XR 5.1.3 based ASR 9006's. Conditions: The issue is easy to reproduce and the best method is to run the command "show log last 250" for example. The issue is only seen on ASR9K/5.1.3 with CSCus22641 or without CSCus22641. 5.2.2 and 4.3.4 have no such issue. The issue is not seen if using other SSH client, for example SecureCRT, or Unix box.
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Bug Details Include
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