FAQ-How private network labels are distributed on an L3VPN

For S series switches (except S1700 switches), private network labels are distributed on an L3VPN using either of the following ways:

1. One label per VPN instance
2. One label per VPN route (default method)

When a large number of VPN routes exist on a network, many private network labels are required if the default label distribution method is used. These private network labels may use up all entries. In this case, each VPN instance can be allocated a private network label to reduce the chip entries used.

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