Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 130)

106 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
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LSP accounting statistics for single-hop LSP routes
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Global RSVP parameters
RSVP is automatically enabled when MPLS is enabled on the device. The user can optionally
configure the following RSVP parameters globally at the Config-MPLS level:
• Refresh interval
• Refresh multiple
The user can also optionally configure interface-specific RSVP behaviors (RSVP authentication,
RSVP reliable messaging, and RSVP refresh reduction) at the interface level. Refer to
“RSVP
message authentication” , “RSVP reliable messaging” , and “RSVP refresh reduction” .
NOTE
The effect of the refresh-interval and refresh-multiple commands can be overridden by RSVP refresh
reduction behaviors. Refer to
“RSVP refresh reduction” for details.
Configuring the RSVP refresh interval
To maintain path states and resource reservations on the routers in an LSP, RSVP Path and Resv
messages are sent at regular intervals. Path messages flow downstream in an LSP, from the
ingress LER towards the egress LER. Resv messages flow upstream, in the reverse direction of Path
messages.