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Cisco Bug: CSCuo72654 - ASR1002-X:copper intf doesn't bring up when it has no nego auto

Last Modified

Mar 03, 2018

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.2(4)S1 15.3(3)S2

Description (partial)

On ASR1k copper port, the interface doesn't bring up when it has fixed configuration if taking the following steps.
Also the interface shows 100Mbps when connecting with a 1000Mbs port.

The copper port has the following configuration;

interface GigabitEthernet0/0/5
 speed 1000
 no negotiation auto

1) Connect with a port with 100M speed,
2) Shutdown the peering interface or disconnect the cable,
3) Connect with 1000M full port and the interface doesn't bring up.
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