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Cisco Bug: CSCur01027 - CPAK Breakout interfaces doesn't come up with SR-10 optics

Last Modified

Sep 17, 2019

Products (3)

  • Cisco Network Convergence System 6000 Series Routers
  • Cisco NCS 6008 - 8-Slot Chassis
  • Cisco IOS XR Software

Known Affected Releases


Description (partial)

On NCS6k, when CPAK SR10/LR10 is running in 10G breakout mode, the 10G interface can remain down, even though it is unshut.

When the CPAK SR10/LR10 running in 10G breakout mode, and when the interface is unshut, it is not seeing a valid Rx signal from the optics, then the interface will remain down, even after when the remote end begins sending valid signals.
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