The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: Receiving duplicate label mappings
Vishal, May be i missed. Where does it say "it > should remove the label from the forwarding use"? Could you copy/paste as-is? Thanhks, Gopal --- Vishal M <vishal_study@yahoo.com> wrote: > Hello, > > According to RFC 3036 Appendix A.1.2 (Receive Label > Mapping), if a LSR receives duplicate Label Mapping > from the peer (i.e. same fec and label again), it > should remove the label from the forwarding use. > > RtrX ---LDP----- Cisco GSR > > Using RtrX, I advertise duplicate label mapping to > the > adjacent Cisco GSR (IOS 12.0(14)ST). I observe that > Cisco accepts the duplicate Label Mapping. > > It doesn't tear down the existing mapping from its > tables (atleast "show mpls ldp bindings" still > displays the binding). > > I turned on the debugs at cisco (attached below) and > notice that it does detect the duplicate binding but > doesn't take any (apparant) action. > > Has someone noticed this and could someone please > comment on the behavior. > > Thanks for your time, > > Regards, > Vishal. > > cisco debug log for FEC: 99.99.12.12/32 > ============================================== > 006889: 1d04h: ldp: Rcvd label mapping msg from > 172.19.78.85:0 (pp 0x64E8E138) > 006890: 1d04h: tagcon: tibent(99.99.12.12/32): > created; remote label learned > 006891: 1d04h: tagcon: tibent(99.99.12.12/32): label > 65544 from 172.19.78.85:0 added > > 006892: 1d04h: ldp: Rcvd label mapping msg from > 172.19.78.85:0 (pp 0x64E8E138) > 006893: 1d04h: tagcon: tibent(99.99.12.12/32): label > 65544 from 172.19.78.85:0 added > > > > __________________________________________________ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up > now. > http://mailplus.yahoo.com > > ------- > The MPLS-OPS Mailing List > Subscribe/Unsubscribe: > http://www.mplsrc.com/mplsops.shtml > Archive: http://www.mplsrc.com/mpls-ops_archive.shtml __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com ------- 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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