3Com MSR 50, MSR 30 manual Mpls rsvp-te blockade-multiplier, 1607

1607

Description Use the mpls rsvp-te authentication command to enable RSVP message authentication on the interface.

Use the undo mpls rsvp-te authentication command to disable RSVP message authentication on the interface.

The RSVP messages sent out of the interface convey a message authentication digest created using the hash algorithm and the configured authentication key. This authentication key also used by the interface to authenticate received RSVP messages. For the two interfaces at the two ends of a link to exchange RSVP messages, they must share the same authentication key.

This hop-by-hop authentication of RSVP is to prevent fake resource reservation requests from occupying network resources.

Example # Enable RSVP message authentication on interface Ethernet 1/0.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] mpls rsvp-te authentication plain partner123

mpls rsvp-te blockade-multiplier

Syntax mpls rsvp-te blockade-multiplier number

undo mpls rsvp-te blockade-multiplier

View MPLS view

Parameter number: Blockade multiplier, in the range 3 to 255.

Description Use the mpls rsvp-teblockade-multipliercommand to configure the blockade multiplier.

Use the undo mpls rsvp-te blockade-multiplier command to restore the default.

The default blockade multiplier is 4.

A ResvErr message establishes blockade state in each node through which it passes to solve the killer reservation problem where one request could deny service to another. The use of blockade state allows a smaller request to be forwarded or established.

The blockade timeout time is determined by the following equation:

Blockade_Expired_Time = Kb ⋅ refresh-time

Where, Kb is the blockade multiplier, and refresh-time is the refresh interval for reservation state.