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Cisco Bug: CSCun16347 - banner motd with "!" and "#" may cause admin vdc migration to hang

Last Modified

Jan 29, 2017

Products (8)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch

Known Affected Releases

6.2(5.52)S0 6.2(6) 6.2(6a)S12

Description (partial)

Symptom:
CLI hangs, to get back CLI, either need to power cycle or need to reload the router by telnet to the mgmt ip.

Conditions:
1. This happens in 6.2.6 with "system admin-vdc migrate xxx" when user has banner motd configurations with "!" and "#" as delimiter.
2. "#" and "!" work in all other releases except 6.2.8. The following characters are known to cause similar issue:
[ $ ^ . | ? \ >
The following characters works fine
{}]*+<
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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