To configure a distributed service from ALA-A to ALA-B, the SDP ID (1) (shown in Figure 1) must be specified in the service creation process to ‟bind” the service to the tunnel (the SDP). Otherwise, service traffic is not directed to a far-end point and the far-end devices cannot participate in the service (there is no service). To configure a distributed service from ALA-B to ALA-A, the SDP ID (5) must be specified.
Figure 1. GRE service distribution point (SDP) pointing from ALA-A to ALA-B
