Mpls Lsr-Id - HP FlexFabric 12500 Command Reference Manual

Syntax
mpls label advertise { explicit-null | implicit-null }
undo mpls label advertise
Default
As an egress, the device advertises an implicit null label to the penultimate hop.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
explicit-null: Specifies the egress to advertise an explicit null label of 0 to the penultimate hop.
implicit-null: Specifies the egress to advertise an implicit null label of 3 to the penultimate hop.
Usage guidelines
If the penultimate hop supports PHP, HP recommends that you configure the egress to advertise an
implicit null label to the penultimate hop. If you want to simplify packet forwarding on the egress but keep
labels in packets for the egress to determine QoS policies, you can configure the egress to advertise an
explicit null label to the penultimate hop.
As a penultimate hop, the device accepts the implicit null label or explicit null label advertised by the
egress device.
For LDP LSPs, the mpls label advertise command triggers LDP to delete the LSPs established before the
command is executed and reestablishes new LSPs.
For BGP LSPs, the mpls label advertise command takes effect only on the BGP LSPs established after the
command is executed. To apply the new setting to BGP LSPs established before the command is executed,
delete the routes corresponding to the BGP LSPs, and then redistribute the routes.
Examples
# Configure the egress device to advertise an explicit null label to the penultimate hop.
<Sysname> system-view
[Sysname] mpls label advertise explicit-null
Related commands
reset mpls ldp

mpls lsr-id

Use mpls lsr-id to configure an LSR ID for the local LSR.
Use undo mpls lsr-id to delete the LSR ID of the local LSR.
Syntax
mpls lsr-id lsr-id
undo mpls lsr-id
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