keep-multiplier

Syntax

Hierarchy Level

Description

Specify a value used by RSVP to calculate timer values for network outages, and declare that a reservation or a neighbor is down. It indicates the number of messages that can be lost before a particular state is declared stale and must be deleted. The keep multiplier directly affects the lifetime of an RSVP state.

Starting in Junos OS Release 16.1, for MX Series routers and PTX Series routers, the default RSVP message refresh time, to which this multiplier is applied, has increased from 30 seconds to 20 minutes. The higher message refresh time provides support for RSVP Refresh Reduction Extensions, and improved scaling for MPLS traffic-engineered LSPs, as defined in RFC 2961. The changes are backward compatible so if any nodes in the two-hop neighborhood do not support the higher refresh time, the updated node will automatically fall back to the previous default refresh time to prevent error or tear down messages.

Options

number—Multiplier value.

• Range: 1 through 255

• Default: 3

  Note:

  For MX Series routers and PTX Series routers (running Junos OS release 16.1 or later), this multiplier is applied to a default refresh time of 20 minutes. In earlier Junos OS releases, and for other platforms, the default refresh time remains 30 seconds.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced before Junos OS Release 7.4.