Alcatel-Lucent 7450 Manual page 295

Signalling the IMPLICIT NULL label value for all RSVP LSPs can be enabled for which this node is
the egress LER. RSVP must be shutdown before being able to change this configuration option.
The egress LER does not signal the implicit null label value on P2MP RSVP LSPs. However, the
Penultimate Hop Popping (PHP) node can honor a resv message with the label value set to the
implicit null.
The no form of this command disables the signaling of the implicit null label.
Default no implicit-null-label
keep-multiplier
Syntax [no] keep-multiplier number
no keep-multiplier
Context config>router>rsvp
Description The keep-multiplier number is an integer used by RSVP to declare that a reservation is down or the
neighbor is down.
The no form of this command reverts to the default value.
Default 3
Parameters
number — The keep-multiplier value.
refresh-reduction-over-bypass
Syntax refresh-reduction-over-bypass [enable | disable]
Context config>router>rsvp
Description This command enables the refresh reduction capabilities over all bypass tunnels originating on this
PLR node or terminating on this Merge Point (MP) node.
By default, this is disabled. Since a bypass tunnel may merge with the primary LSP path in a node
downstream of the next-hop, there is no direct interface between the PLR and the MP node and it is
possible the latter will not accept summary refresh messages received over the bypass.
When disabled, the node as a PLR or MP will not set the "Refresh-Reduction-Capable" bit on RSVP
messages pertaining to LSP paths tunneled over the bypass. It will also not send Message-ID in
RSVP messages. This effectively disables summary refresh.
Default disable
7450 ESS MPLS Guide
Values 1 — 255
MPLS and RSVP
Page 295