Creating A Sdp - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

Configuring VPLS
•
Each router must have an SDP defined for every remote router to which the local router will provide
service. In addition, a return path SDP is required from every remote router to the local router, as SDP
tunnels are uni-directional.
•
To configure the MPLS transport for the SDP, first create LSPs and then associate them with the SDP.
•
More than one SDP to the same far-end router is allowed as long as each SDP uses a different type of
transport. For example, one SDP can use LDP-signaled LSPs and the other SDP can use a static LSP.
However, a service can only use one SDP for any given far-end router.
•
A VPLS service requires an SDP binding. By default, no SDP is associated with a service. The SDP is
created first and then bound to the service.
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An SDP is not specific or exclusive to any one service or any type of service. An SDP can have more
than one service binding. However, any administrative or operational activity that occurs on the SDP
affects all the services associated with that SDP.
•
In the SDP configuration, automatic ingress and egress labeling (targeted LDP) is enabled by default.
Ingress and egress VC labels are signaled over a targeted LDP (TLDP) connection between two rout-
ers. Note that if signaling is disabled for an SDP, then services using that SDP must configure ingress
and egress VC labels manually.

Creating a SDP

A SDP is identified by an ID number. This ID number is used to bind the SDP to a service and LSPs. The
configure service sdp create
command creates a SDP with 10 as the ID number:
-> configure service sdp 10 create
Optionally configure a description for the SDP ID using the
For example:
-> configure service sdp 10 description "PE-R1 to PE-R2"
Configure the Far-End System IP Address
Once the SDP is created, the
far-end system IP address. This IP address belongs to the remote router that will serve as the endpoint for
the SDP tunnel. For example, the following command specifies the system IP address 10.10.10.1 as the
far-end router for SDP 10:
-> configure service sdp 10 far-end 10.10.10.1
Note. Note that when the far-end address is configured for a SDP, a tunnel is created between the local
router, on which the SDP was created, and the far-end router.
Configure the LSP Type for the SDP
The next step when configuring an SDP is to determine if the SDP will use MPLS Label Switched Paths
(LSPs) that are dynamically determined using Label Distribution Protocol (LDP) signaling or user-config-
ured static LSPs. The SDP can use only one or the other type of LSP.
OmniSwitch AOS Release 6 Network Configuration Guide
command is used to create the SDP ID. For example, the following
configure service sdp far-end
September 2009
Configuring VPLS Services
configure service sdp description
command is used to associate the SDP with a
command.
page 11-17