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Cisco Bug: CSCsg34742 - MR-APS: Some serial interfaces stay down/down after contro no shut.

Last Modified

Feb 01, 2017

Products (1)

  • Cisco 10000 Series Routers

Known Affected Releases

12.2(28)SB5 12.2(31.4.67)SB

Description (partial)


Seeing some of the T1 serial interfaces are staying as down/down
after its sonet controller port is shut and no shut.


The above symptom is seeing on the C10000 platform router with 4chstm1-1
line cards in a MR-APS setup. It is seeing with max T1/HDLC interfaces allowed to
config over two OC3 ports on a 4chstm1-1 card. MR-APS is configed on each port.
The symptom is seeing after a shut and no shut on one of the two port, while it's
MR-APS Protect has MR-APS lockout enabled.
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