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tracert on loopback interfaces in mpls domains

Publication Date:  2012-07-27 Views:  2 Downloads:  0
Issue Description
Tracert cannot be carried out on mpls-enabled network; only single destination hop is viewed. 
      
Alarm Information
Using MPLS on a device, we cannot reach a loopback0 IP adrress.
      
Handling Process
Tracert in MPLS domain is different from IP domain. The Loopback ip can not be tracert in MPLS domain. It can use the interface ip to tracert to replace in MPLS domain.
Root Cause
When Mpls was disabled on the device, the loopback was successfully traced.
            
Suggestions
draft-ietf-mpls-icmp defines the functions and properties to be supported by MPLS enabled devices.
            

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