This section provides a brief overview of the tasks that must be performed to configure SDPs and provides the CLI commands. For more information about service configuration, refer to the 7705 SAR Services Guide.
The following SDP characteristics apply:
The SDP must be configured for GRE or MPLS encapsulation.
Each distributed service must have an SDP defined for every remote 7705 SAR to provide Epipe, VPLS, or mirrored services.
A distributed service must be bound to an SDP. By default, no SDP is associated with a service. Once an SDP is created, services can be associated with that SDP.
An SDP is not specific to any one service or any type of service. An SDP can have more than one service bound to it.
For SDPs use remote-source>far-end entries. Remote source far-end details are configured in the destination node.
To configure an MPLS SDP, LSPs must be configured first and then the LSP-to-SDP association must be explicitly created.
To configure a basic SDP, perform the following steps:
Select an originating node.
Create an SDP ID.
Select an encapsulation type.
Select the far-end node.
To configure the return path SDP, perform the same steps on the far-end router.
Use the following CLI syntax to create an SDP and select an encapsulation type. If you do not specify GRE or MPLS, the default encapsulation type is GRE.
When you specify the far-end IP address, you are creating the tunnel. In essence, you are creating the path from Point A to Point B. Use the show service sdp command to display the qualifying SDPs.
config>service# sdp sdp-id [gre | mpls] create
description description-string
far-end ip-addr
lsp lsp-name
path-mtu octets
no shutdown
keep-alive
hello-time seconds
hold-down-time seconds
max-drop-count count
message-length octets
no shutdown
On the mirror-source router, configure an SDP pointing toward the mirror-destination router (or use an existing SDP).
On the mirror-destination router, configure an SDP pointing toward the mirror-source router (or use an existing SDP).
The following example shows SDP configurations on both the mirror-source and mirror-destination routers.
*A:SAR-1>config>service# info
-------------------------------------------
sdp 1 create
description "to-10.10.10.104"
far-end 10.10.10.104
no shutdown
exit
-------------------------------------------
*A:SAR-1>config>service#
*A:SAR-2>config>service# info
----------------------------------------------
sdp 4 create
description "to-10.10.10.103"
far-end 10.10.10.103
no shutdown
exit
-------------------------------------------
*A:SAR-2>config>service#