June 2004
Intermediate to advanced
840 pages
39h 47m
English
Content preview from The Internet and Its Protocols
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476 Chapter 9 Multiprotocol Label Switching (MPLS)
Figure
9.76 Reporting a network failure and cleaning up an LSP in an RSVP-TE network.
may be black-holed or at very best may emerge from the LSP and be forwarded
as IP packets. Other implementations maintain the LSP completely until they
see the PathTear message.
Finally, Figure 9.76 shows how a network failure (step 1) is handled in
RSVP-TE. The failure is detected at the upstream node (step 2) and downstream
node (step 3), perhaps by notification from hardware or lower-level protocols,
or perhaps through the RSVP Hello protocol. The upstream node immediately ...
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