In addition to this intuitive visual topology display, routing architects can trigger various queries that will compute
For troubleshooting MPLS protocols, the 5650 CPAM provides super- imposed MPLS and IP protocol peering. This helps operators detect incomplete MPLS or IP peering that affect the MPLS protocol’s operation.
The 5650 CPAM also includes a powerful control plane configura- tion search engine that detects and highlights traffic engineering config- urations that deviate from standard implementations (e.g. different traffic engineering parameters, incomplete peering, available bandwidth configuration, etc.)
Figure 7. Expanding the Alcatel-Lucent 5620 SAM Service Topology View with Underlying Control Plane Topology
5650 CPAM Service Overlay
5620 SAM Service View
Asymmetrical Route
5620 SAM Layer 2 and 3 Service,
MPLS Tunnels and OAM Trace
Overlays
The virtual private routed network (VPRN), virtual private line service (VPLS), virtual private wire service (VPWS) composite services, MPLS tunnels and LSPs provisioned (active and alternate paths) in the 5620 SAM can be highlighted over the 5650 CPAM control plane map. This feature allows operators to understand the path used to traverse the network, the number of hops along the path, whether the forward/return paths follow the same route and view all provisioned alternate paths for a given LSP [Figure 7].
Should the 5620 SAM SLA monitoring feature report service quality degradation, a network operator can extract the OAM trace results for the corresponding MPLS tunnel (path) from the
5620 SAM and verify if the path was recently changed. Any changes are graphically highlighted over the control plane topology map to provide a visual comparison between previous and current paths, which might account for the sudden change in service quality.
