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Chapter 11 Using Cisco PathTracer to Diagnose Problems Using Cisco PathTracer in MPLS Networks
Using Cisco PathTracer for CSC Configurations
Cisco PathTracer traces a CSC flow from the customer CE through the cus tomer carr ier VPN, acr oss the
customer backbone carrier VPN, back to the customer carrier V PN, a nd to the dest ina tio n C E.
To launch a path trace for a CSC configuration:
Step 1 In a map, double-click the required CE device.
Step 2 In the inventory window, choose Logical Inventory > Routing Entities > Routing Entity.
Step 3 In the IP Interfaces table, right-click the required inte rface and choose PathTracer > Start Here > IPvn
where IPvn represents IPv4 or IPv6.
Step 4 Navigate to the destination CE device and double-click it.
Step 5 In the inventory window, choose Logical Inventory > Routing Entities > Routing Entity.
Step 6 In the IP Interfaces table, right-click the required interface and choose PathTracer > End Here.
The path trace is displayed in the Cisco PathTracer window.
Step 7 To view the detailed pane, click Cisco PathTracer in the toolbar.
The Layer 2 tab displays a single outer label and two inner labels for each interface, reflecting the CSC
configuration. (See Figure 11-11.)
Figure 11-11 CSC Configuration Path Trace