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Avoiding Branch LSR Replication on a LAN for P2MP LSPs P2MP RSVP-TE and LDP LSPs rely on branch LSR replication on a LAN For bandwidth optimization it is desirable for a branch LSR to transmit a single copy of a packet on a LAN Upstream label assignment allows a branch LSR, Ru, to transmit a single copy of a MPLS packet to on a P2MP LSP on a LAN Ru assigns an upstream assigned label and distributes it to each of Only a subset of may support upstream label assignment and the other LSRs will continue to use downstream label assignment – packets will be replicated for these LSRs

PPT Version