Pseudowire Redundancy Service Models; Redundant Vll Service Model; Figure 28: Redundant Vll Endpoint Objects - Alcatel-Lucent 7210 SAS M Service Manual

Pseudowire Redundancy Service Models

This section describes the pseudowire redundancy scenarios as well as the algorithm used to select
the active transmit object in a VLL endpoint.
The redundant VLL service model is described in the following section,
Model.

Redundant VLL Service Model

In order to implement pseudowire redundancy, a VLL service accommodates more than a single
object on the SAP side and on the spoke SDP side.
VLL service based on the concept of endpoints.
A VLL service supports by default two implicit endpoints managed internally by the system. Each
endpoint can only have one object, a SAP or a spoke SDP.
In order to add more objects, up to two (2) explicitly named endpoints may be created per VLL
service. The endpoint name is locally significant to the VLL service. They are referred to as
endpoint 'X' and endpoint 'Y' as illustrated in
7210 SAS M Services Guide
VLL
SAP
Endpoint X

Figure 28: Redundant VLL Endpoint Objects

Virtual Leased Line Services
Figure 28 illustrates the model for a redundant
Spoke-SDP
Spoke-SDP
Spoke-SDP
Spoke-SDP
Endpoint Y
Figure 28.
Redundant VLL Service
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