Alcatel-Lucent 7750 SR OS - Page 1408

OAM and SAA Command Reference
Page 1410 7750 SR OS Services Guide
remote-sdp — Specifies svc-ping reply message from the far-end should be sent using the same
service tunnel encapsulation labeling as service traffic.
If remote-sdp is specified, the far-end responder attempts to use an egress SDP-ID bound to the
service with the message originator as the destination IP address with the VC-Label for the
service. The SDP-ID defines the encapsulation of the SDP tunnel encapsulation used to reply to
the originator; this can be IP/GRE or MPLS. On responder egress, the Service-ID must have an
associated VC-Label to reach the originator address of the SDP-ID and the SDP-ID must be
operational for the message to be sent.
If remote-sdp is not specified, the svc-ping request message is sent with GRE encapsulation
with the OAM label.
The table below indicates how the message response is encapsulated based on the state of the
remote Service ID.
Local Service State local-sdp Not Specified local-sdp Specified
Message
Sent
Message
Encapsulation
Message
Sent
Message
Encapsulation
Invalid Local Service Yes Generic IP/GRE OAM
(PLP)
No None
No Valid SDP-ID Bound Yes Generic IP/GRE OAM
(PLP)
No None
SDP-ID Valid But Down Yes Generic IP/GRE OAM
(PLP)
No None
SDP-ID Valid and Up, But No
Service Label
Yes Generic IP/GRE OAM
(PLP)
No None
SDP-ID Valid, Up and Egress Ser-
vice Label
Yes Generic IP/GRE OAM
(PLP)
Yes SDP Encapsulation
with Egress Service
Label (SLP)
Remote Service State Message Encapsulation
remote-sdp
Not Specified
remote-sdp
Specified
Invalid Ingress Service Label Generic IP/GRE OAM (PLP) Generic IP/GRE OAM (PLP)
Invalid Service-ID Generic IP/GRE OAM (PLP) Generic IP/GRE OAM (PLP)
No Valid SDP-ID Bound on Service-ID Generic IP/GRE OAM (PLP) Generic IP/GRE OAM (PLP)
SDP-ID Valid But Down Generic IP/GRE OAM (PLP) Generic IP/GRE OAM (PLP)
SDP-ID Valid and Up, but No Service Label Generic IP/GRE OAM (PLP) Generic IP/GRE OAM (PLP)