Configuring Ldp Signaling For The Vpls Routing Instance - Juniper ACX1000 Configuration Manual

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Be aware of the following behavior with regard to TLVs when configuring LDP-signaled
VPLS in a network with equipment from other vendors:
When a Juniper Network's device receives a TLV with an empty address, LDP accepts
the TLV.
When a MAC address is withdrawn, LDP specifies a zero address (0.0.0.0) for the
AddressList.
To enable LDP signaling for the set of PE routers participating in the same VPLS routing
instance, you need to use the
routing-instance-name protocols vpls]
on each of the PE routers. The VPLS identifier must be globally unique. When each VPLS
routing instance (domain) has a unique VPLS identifier, it is possible to configure multiple
VPLS routing instances between a given pair of PE routers.
LDP signaling requires that you configure a full-mesh LDP session between the PE routers
in the same VPLS routing instance. Neighboring PE routers are statically configured.
Tunnels are created between the neighboring PE routers to aggregate traffic from one
PE router to another. Pseudowires are then signaled to demultiplex traffic between VPLS
routing instances. These PE routers exchange the pseudowire label, the MPLS label that
acts as the VPLS pseudowire demultiplexer field, by using LDP forwarding equivalence
classes (FECs). Tunnels based on both MPLS and generic routing encapsulation (GRE)
are supported.
NOTE: You cannot configure both BGP signaling and LDP signaling for the
same VPLS routing instance. If you attempt to configure the statements that
enable BGP signaling for the VPLS routing instance (the
and statements), and the statements that enable LDP signaling
site-range
for the same instance,
To enable LDP signaling for the VPLS routing instance, complete the steps in the following
sections:
Configuring LDP Signaling for the VPLS Routing Instance on page 1247
Configuring LDP Signaling on the Router on page 1248

Configuring LDP Signaling for the VPLS Routing Instance

To configure the VPLS routing instance to use LDP signaling, you must configure the
same VPLS identifier on each PE router participating in the instance. Specify the VPLS
identifier with the vpls-id statement:
vpls-id vpls-id;
Chapter 35: Configuring Virtual Private LAN Service
statement configured at the
vpls-id
hierarchy level to configure the same VPLS identifier
and , the commit operation fails.
neighbor vpls-id
[edit routing-instances
site , site-identifier ,
1247