Preview Tool

Cisco Bug: CSCuk56956 - Y-Cable should raise AUTOSW-SFBER/SDBER alarms

Last Modified

Mar 06, 2012

Products (1)

  • Cisco ONS 15454 Series Multiservice Provisioning Platforms

Known Affected Releases


Description (partial)

Symptom: Y-cable protection groups execute an unexpected double switch.

Conditions: This can occur when the protect trunk span of the Y-cable
protection group is fitted with a physical loopback cable and a brief
alarm condition is injected into the working span. The protection group
will switch to protect when the alarm is raised and then immediately
revert to working when the alarm is cleared.  

The alarm condition must clear quickly; the symptom is most repeatable
when the alarm clears within one second.

This symptom has been observed when the card mode is Transparent.
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.