SDP Commands
Page 100 7210 SAS-X, R6 OS Services Guide
SDP Commands
sdp
Syntax sdp sdp-id [mpls] [create]
no sdp sdp-id
Context config>service
Description This command creates or edits a Service Distribution Point (SDP). SDPs must be explicitly
configured.
An SDP is a logical mechanism that ties a far-end 7210 SAS X to a particular service without having
to specifically define far end SAPs. Each SDP represents a method to reach a 7210 SAS M7210 SAS
X router.
The other method is Multi-Protocol Label Switching (MPLS) encapsulation. A 7210 SAS M7210
SAS X supports both signaled and non-signaled Label Switched Paths (LSPs) through the network.
Non-signaled paths are defined at each hop through the network. Signaled paths are communicated by
protocol from end to end using Resource ReserVation Protocol (RSVP). Paths may be manually
defined or a constraint-based routing protocol (such as OSPF-TE or CSPF) can be used to determine
the best path with specific constraints. An LDP LSP can also be used for an SDP when the
encapsulation is MPLS. The use of an LDP LSP type or an RSVP/Static LSP type are mutually
exclusive except when the mixed-lsp option is enabled on the SDP.
SDPs are created and then bound to services. Many services may be bound to a single SDP. The
operational and administrative state of the SDP controls the state of the SDP binding to the service.
If sdp-id does not exist, a new SDP is created. When creating an SDP, the mpls keyword must be
specified. SDPs are created in the admin down state (shutdown) and the no shutdown command
must be executed once all relevant parameters are defined and before the SDP can be used.
If sdp-id exists, the current CLI context is changed to that SDP for editing and modification. For
editing an existing SDP, the mpls keyword is specified. If a keyword is specified for an existing sdp-
id, an error is generated and the context of the CLI will not be changed to the specified sdp-id.
The no form of this command deletes the specified SDP. Before an SDP can be deleted, it must be
administratively down (shutdown) and not bound to any services. If the specified SDP is bound to a
service, the no sdp command will fail generating an error message specifying the first bound service
found during the deletion process. If the specified sdp-id does not exist an error will be generated.
Default none
Parameters sdp-id — The SDP identifier.
Values 1 — 17407
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