Re: [mpls] error response to mpls data packets

[Nitin Bahadur <nitinb at juniper.net>]

Title: Re: [mpls] error response to mpls data packets

> > MPLS LSPs can span across different type of networks.
> > Suppose LSP spans across R1,R2,R3 and R2 is not part of IP networks. 
> > In that case how will the forwarding error is handled at R2 (incase its part of IP, ICMP error
> > message can be sent to the source).
>
> If R2 is pure MPLS and there is a forwarding error, then the packet will likely get dropped. 
> MPLS has no equivalent of ICMP error. For MPLS networks, it is important that one run MPLS-OAM tools to quickly detect forwarding plane errors and fix the same.



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