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Cisco Bug: CSCuq17910 - MR-APS over MLP : APS reverts back to work port with third party equip.

Last Modified

Sep 14, 2019

Products (1)

  • Cisco ASR 900 Series Aggregation Services Routers

Known Affected Releases

15.4(3)S

Description (partial) 

Symptom:
MRAPS is configured over Serial/MLP links. Instead of ADM connections to remote end, customer has a third party equipment which is ADM capable. The K1/K2 bytes sent by the Alcatel box are correct, but 903 interprets them wrongly can causes a aps revert switch back to work port while protect port should remain active.

Conditions:
Issue is not seen with ADM. Seen with third party APS capable equipment like Alcatel box in this case.
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