Adjusting RSVP Signaling Parameters

RSVP-TE supports various signaling parameters, which meet requirements for reliability and network resources, and requirements of MPLS TE advanced functions.

Usage Scenario

RSVP TE supports diversified signaling parameters, which meet requirements of reliability and network resources and some MPLS TE advanced features.

Pre-configuration Tasks

Before adjusting RSVP signaling parameters, enable MPLS TE and RSVP-TE.

Configuring the RSVP Hello Extension: The RSVP Hello extension rapidly monitors the connectivity of RSVP neighbors.

Configuring an RSVP Timer: An RSVP timer is configured to define the interval at which Path and Resv messages are refreshed, and the timeout multiplier associated with the RSVP blocked state is also configured.

(Optional) Configuring Reliable RSVP Message Transmission: When BFD is not configured on a network, reliable RSVP message transmission can be configured to increase the success rate of detecting link faults, which minimize long-time traffic loss inducted by link intermittent disconnections.

Configuring RSVP-TE Srefresh: Enabling Summary Refresh (Srefresh) on interfaces connecting two RSVP neighboring nodes reduces the network cost and improves network performance. After Srefresh is enabled, retransmission of Srefresh messages will be automatically enabled on interfaces.

Enabling RSVP-TE Reservation Confirmation: RSVP-TE reservation confirmation configured on the egress of a tunnel verifies that resources are successfully reserved.

Changing the PSB and RSB Timeout Multiplier: The PSB and RSB timeout multiplier defines the maximum number of signaling packets that can be discarded in a weak signaling environment.

Verifying the Configuration of Adjusting RSVP Signaling Parameters: After adjusting RSVP signaling parameters, you can view the refresh parameters, RSVP reservation confirmation status, RSVP Hello extension status, and RSVP timer parameters.