June 2004
Intermediate to advanced
840 pages
39h 47m
English
Content preview from The Internet and Its Protocols
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454 Chapter 9 Multiprotocol Label Switching (MPLS)
Figure 9.52 Handling a
request for LSP teardown from a downstream LSR
in a
Downstream on
Demand LDP or CR-LDP network.
the ingress, sees the Label Withdraw as a request rather than a demand, and it
is a local policy decision that determines how it reacts. It may choose to ignore
the request and continue sending traffic, in which case LSR D would still be
able to decisively and ungracefully kill the LSP by sending a Notification mess-
age. Alternatively, as illustrated in step 3 and step 4, LSR A may cleanly finish
sending data and then release ...
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