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Cisco Bug: CSCvs53478 - For eXR: On shut/unshut for sysadmin MGMT interface, we have to re-configure IP and default-gw

Last Modified

Jan 02, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

6.5.3.BASE

Description (partial)

Symptom:
When running eXR on ASR9k, when we shut/unshut sysadmin management port, it becomes unreachable.

We cannot reach ipv4 address for the port and all other related features to ipv4 will fail

sysadmin-vm:0_RSP0# show interface                                 
Fri Aug  16 15:46:00.278 UTC
MgmtEth0/RSP0/0/0  Link encap: Ethernet  HWaddr 68:3b:78:c0:e0:d1
  inet  addr: 10.31.121.189
  UP RUNNING BROADCAST MULTICAST   MTU:1500  Metric:1
  RX packets:      87688 errors:0 dropped:0 overruns:0   frame:0
  TX packets:      87392 errors:0 dropped:0 overruns:0 carrier:0
                         collisions:0 txqueuelen:1000
  RX bytes:              48767392  TX bytes:               4021515

sysadmin-vm:0_RSP0# copy tftp://10.31.104.72/ncs5500-6.3.3.CSCvk35975.tar harddisk:
Fri Aug  16 15:46:46.876 UTC
File exists . Want to overwrite[y|n][y] :
Copying tftp://10.31.104.72/ncs5500-6.3.3.CSCvk35975.tar to harddisk:
File copied successfully

sysadmin-vm:0_RSP0# conf
Fri Aug  16 15:47:30.256 UTC
Entering configuration mode terminal
sysadmin-vm:0_RSP0(config)# interface MgmtEth 0/RSP0/0/0
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# shutdown
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# commit
Fri Aug  16 15:47:37.111 UTC
Commit complete.
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# end
Fri Aug  16 15:47:38.368 UTC 

sysadmin-vm:0_RSP0(config)# interface MgmtEth 0/RSP0/0/0
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# no shut
Fri Aug  16 15:49:34.491 UTC
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# commit
Fri Aug  16 15:49:36.253 UTC
Commit complete.
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# end
Fri Aug  16 15:49:37.187 UTC
sysadmin-vm:0_RSP0# copy tftp://10.31.104.72/ncs5500-6.3.3.CSCvk35975.tar harddisk:
Fri Aug  16 15:49:38.938 UTC
File exists . Want to overwrite[y|n][y] :
Copying tftp://10.31.104.72/ncs5500-6.3.3.CSCvk35975.tar to harddisk:
File copy failed, error code = 41

Conditions:
This will be seen in ASR9k running eXR and only on MGMT port in sysadmin
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