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Configuring Automatic Site Identifiers for VPLS

When you enable automatic site identifiers, the JUNOS software automatically assigns site identifiers to VPLS sites. To configure automatic site identifiers for a VPLS routing instance, include the automatic-site-id statement:




automatic-site-id {
collision-detect-time seconds;
new-site-wait-time seconds;
reclaim-wait-time minimum seconds maximum seconds;
startup-wait-time seconds;
}

You can include this statement at the following hierarchy levels:

[edit routing-instances routing-instance-name protocols vpls site site-name]
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols vpls site site-name]

The automatic-site-id statement includes a number of options that control different delays in network layer reachability information (NLRI) advertisements. All of these options are configured with default values. See the statement summary for the automatic-site-id statement for more information.

The automatic-site-id statement includes the following options:

collision-detect-time—The time in seconds to wait after a claim advertisement is sent to the other routers in a VPLS instance before a PE router can begin using a site identifier. If the PE router receives a competing claim advertisement for the same site identifier during this time period, it initiates the collision resolution procedure for site identifiers.
new-site-wait-time—The time in seconds to wait to receive VPLS information for a newly configured routing instance or a new site. This time interval is also applied whenever the automatic site identifier feature is activated on a VPLS routing instance other than at startup. Effectively, this timer indicates how long to wait before an attempt is made to allocate a site identifier. This timer is also triggered whenever a VPLS routing instance is enabled.
reclaim-wait-time—The time to wait before attempting to claim a site identifier after a collision. A collision occurs whenever an attempt is made to claim a site identifier by two separate VPLS sites.
startup-wait-time—The time in seconds to wait at startup to receive all the VPLS information for the route targets configured on the other PE routers included in the VPLS routing instance.

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