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Chapter 13      Finding Available Network Paths Using PathTracer
  Saving and Opening Cisco PathTracer Map Files
Saving and Opening Cisco PathTracer Map Files
Prime Network enables you to export multiple-path trace maps that are displayed in the Cisco PathTracer 
window to an XML file. You can view the data later to assess whether anything has changed.
Saving Cisco PathTracer Map Files
To save Cisco PathTracer map files:
Step 1Open the Cisco PathTracer window...

  
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  Rerunning a Path and Comparing Results
Step 3In the Export Table to File dialog box, navigate to the directory where you want to save the 
Cisco PathTracer counter values. 
Step 4In the File name field, enter a name for the file in which to save the counter values.
Step 5Click Save. Cisco PathTracer starts saving the counter values to the specified file.
Step 6To stop exporting counter values...

  
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  Viewing L2TP Path Information
Cisco PathTracer uses the VLAN tags of the Ethernet header and the port configuration to trace the path 
from one interface to another over the network. Among other things, you can:
View a Layer 2 path across a LAN domain with all the VLAN tag information.
For each network element, view the relevant parameters for each interface on all layers along the 
path....

  
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Chapter 13      Finding Available Network Paths Using PathTracer
  Using Cisco PathTracer in MPLS Networks
Using Cisco PathTracer in MPLS Networks
You can open and view Cisco PathTracer information between service endpoints, such as an IP interface 
that is attached to the VRF over an MPLS network. The LSP in the MPLS network is found according 
to the cross-connect table of each router.
NoteAn LSP can be traced and displayed by Cisco PathTracer as part of an...

  
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  Using Cisco PathTracer in MPLS Networks
Cisco PathTracer MPLS Start and Endpoints
You can open Cisco PathTracer by right-clicking a starting point and entering the required destination 
IP address. Table 13-4 lists the Cisco PathTracer starting points.
If you choose the Start Here option, Ta b l e 1 3 - 5 lists the endpoints that can be selected as path 
destinations.
The Cisco PathTracer...

  
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Using Cisco PathTracer for CSC Configurations
Cisco PathTracer traces a CSC flow from the customer CE through the customer carrier VPN, across the 
customer backbone carrier VPN, back to the customer carrier VPN, and to the destination CE. 
To launch a path trace for a CSC configuration: 
Step 1In a map, double-click the required CE device.
Step 2In the...

  
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Chapter 13      Finding Available Network Paths Using PathTracer
  Using Cisco PathTracer in MPLS Networks
For Layer 3 path information, Prime Network uses VRF routing and label switching information to trace 
the path from one VRF interface to another. Layer 3 path trace information is displayed in the 
Cisco PathTracer window when the path goes over connections and ends in VRFs. 
If a VRF table includes more than one path toward a destination, Cisco...

  
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  Using Cisco PathTracer in MPLS Networks
Using Cisco PathTracer for MPLS TE Tunnels
Cisco PathTracer uses label switching information to trace the end-to-end path of a TE tunnel path from 
one PE router to another.
Using MPLS TE technology, Cisco PathTracer enables you to:
View a path or list of devices.
View the following information for each network element:
–The relevant parameters for each...

  
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Table 13-7 describes the Layer 2 properties that can be displayed in the Layer 2 tab specifically for 
MPLS TE tunnels. 
Table 13-7 Cisco PathTracer Layer 2 Properties for MPLS TE Tunnels
Field Description
MPLS  TE  Properties MPLS TE data set in an MPLS interface, primarily bandwidth allocation 
levels and signaling protocol.
Tunnel Oper Status...

  
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Tunnel Average Rate Kbps Tunnel average rate in Kb/s.
Tunnel Affinity Mask Tunnel affinity bits that should be compared to the link attribute bits.
Table 13-7 Cisco PathTracer Layer 2 Properties for MPLS TE Tunnels (continued)
Field Description