Checking for a MAC Rewrite Error Condition Blocking Layer 2 Interface in ACX Series
To check whether an interface is blocked due to a MAC rewrite error condition:
1.
Use the show interfaces operational mode command:
user@host> show interfaces interface-name
2. You can determine the status of the interface as follows:
•
If the value in the Physical interface includes Enabled, Physical link is Up and the
value of the MAC-REWRITE Error field is None, the interface is enabled
•
If the value in the Physical interface field is Enabled, Physical link is Down and the
value in the MAC-REWRITE Error field is Detected, the interface is blocked.
Related
Documentation
Layer 2 Protocol Tunneling on ACX Series Overview on page 437•
• Enabling Layer 2 Protocol Tunneling on ACX Series on page 439
• Configuring a Layer 2 Protocol Tunnel Interface in ACX Series on page 439
• Configuring a Layer 2 Protocol to be Tunneled in ACX Series on page 440
• Configuring Layer 2 Protocol Tunneling on ACX Series on page 441
• Clearing a MAC Rewrite Error Condition Blocking a Spanning-Tree Instance Interface
in ACX Series on page 442
Clearing a MAC Rewrite Error Condition Blocking a Spanning-Tree Instance Interface
in ACX Series
If a packet is received on a tunnel interface that already has a destination multicast MAC
address of 01:00:0c:cd:cd:d0, the port enters an error state and is shut down. To clear
the error condition, the administrator must enter the clear error mac-rewrite interface
interface-name command.
To clear the blocked status of an interface:
•
Use the clear error mac-rewrite operational mode command.
user@host> clear error mac-rewrite interface interface-name
Related
Documentation
• Layer 2 Protocol Tunneling on ACX Series Overview on page 437
• Enabling Layer 2 Protocol Tunneling on ACX Series on page 439
• Configuring a Layer 2 Protocol Tunnel Interface in ACX Series on page 439
• Configuring a Layer 2 Protocol to be Tunneled in ACX Series on page 440
• Configuring Layer 2 Protocol Tunneling on ACX Series on page 441
Copyright © 2017, Juniper Networks, Inc.442
ACX Series Universal Access Router Configuration Guide
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