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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)

Symptom:
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.

Conditions:
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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