Beta Draft Confidential
9-621/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring ATM Over MPLS Gateway Solution on CBX 3500
Configuring PWE3 Over MPLS Core Network
Configuring LDP Entities
Label Distribution Protocol (LDP) session parameters must be configured to create
LDP extended discovery sessions for Layer 2 MPLS VPNs. One LSR informs another
of the label/FEC bindings it has made. Two LSRs which use an LDP entity to
exchange label/FEC binding information are known as "label distribution peers" with
respect to the binding information they exchange. If two LSRs are label distribution
peers, there is said to be a "label distribution adjacency" between them.
Configure an LDP session between each pair of switches on which a PWE3
connection will be created.
To configure LDP:
1. In the Network object tree, expand the instance node for the network that contains
the switch.
2. Expand the Switches class node and double-click on the instance node for the
switch.
3. The switch object tree appears in the Navigation Panel.
4. Right-click on LDP Entities and select Add. The Add LDP Entity dialog box
appears (Figure 9-29).
Figure 9-29. Add LDP Entity Dialog Box
5. Complete the fields as described in Table 9-25.
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