MPLS and RSVP
7210 SAS M, T, X, R6, Mxp MPLS Configuration Guide Page 163
RSVP Commands
rsvp
Syntax [no] rsvp
Context config>router
Description This command enables the context to configure RSVP protocol parameters. RSVP is not enabled by
default and must be explicitely enabled (no shutdown).
RSVP is used to set up LSPs. RSVP should be enabled on all router interfaces that participate in
signaled LSPs.
The no form of this command deletes this RSVP protocol instance and removes all configuration
parameters for this RSVP instance. To suspend the execution and maintain the existing configuration,
use the shutdown command. RSVP must be shutdown before the RSVP instance can be deleted. If
RSVP is not shutdown, the no rsvp command does nothing except issue a warning message on the
console indicating that RSVP is still administratively enabled.
Default no shutdown
The Russian Doll Model (RDM) LSP admission control policy allows bandwidth sharing across
Class Types. It provides a hierarchical model by which the reserved bandwidth of a CT is the sum of
the reserved bandwidths of the numerically equal and higher CTs.
The RDM model is defined using the following equations:
SUM (Reserved (CTc)) <= BCb,
where the SUM is across all values of c in the range b <= c <= (MaxCT - 1), and BCb is the
bandwidth constraint of CTb.
BC0= Max-Reservable-Bandwidth, so that
SUM (Reserved(CTc)) <= Max-Reservable-Bandwidth,
where the SUM is across all values of c in the range 0 <= c <= (MaxCT - 1).
graceful-shutdown
Syntax [no] graceful-shutdown
Context config>router>rsvp
config>router>rsvp>interface
Description This command initiates a graceful shutdown of the specified RSVP interface or all RSVP interfaces
on the node if applied at the RSVP level. These are referred to as maintenance interface and
maintenance node, respectively.
To initiate a graceful shutdown the maintenance node generates a PathErr message with a specific
error sub-code of Local Maintenance on TE Link required for each LSP that is exiting the
maintenance interface.
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