The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: Label at bottom of stack vs somewhere else
Hi vikas, The MPLS forwarding component should process the MPLS PDUs without bothering of the presence of "S" bit anywhere in the stack. As soon as the processing plane find that the "S" bit is set, it will forward the packet to the LSR application running on top of it, indicating that the packet is IP and it needs the attention of LSR application to make forwarding decision. regards, Hemant ---------------------------------------------------------------- All, Is there *any* situation in which the behavior of a penultimate hop or an egress router depends upon the absolute position of outermost label. Specifically, is there any case when the processing of packet depends upon whether the S bit is 1 or 0 for the label being popped. I guess as per MPLS RFCs, the processing is independent of the hierarchy. Just wanted to verify if there is a case, that calls for a need to violate that. - VD ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml |
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