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9-11
Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 9 Configuring Multihop
Monitoring and Maintaining Multihop Configurations
Caution Because debugging output is assigned high priority in the CPU process, it can render the system
unusable. For this reason, use debug commands only to troubleshoot specific problems or during
troubleshooting sessions with Cisco Systems technical support personnel. Moreover, it is best to use
debug commands during periods of lower network traffic and fewer users. Debugging during these
periods decreases the likelihood that increased debug command processing overhead will affect system
use.
Example 9-3 shows the information that displays when you use the show vpdn command. All tunnel and
session information displays for all active sessions and tunnels when you use the show vpdn command
without any keywords or arguments.
Example 9-3 show vpdn Command
Router# show vpdn
L2TP Tunnel and Session Information Total tunnels 2 sessions 22
LocID RemID Remote Name State Remote Address Port Sessions VPDN Group
1206019602tunnel5est45.1.5.5170111tunnel5
LocIDRemIDTunIDIntfUsernameStateLast Chg
3 312060SSSCircuitu@n5est2d19h
2 212060SSSCircuitu@n5est2d19h
4 412060SSSCircuitu@n5est2d19h
5 512060SSSCircuitu@n5est2d19h
6 612060SSSCircuitu@n5est2d19h
7 712060SSSCircuitu@n5est2d19h
8 812060SSSCircuitu@n5est2d19h
9 912060SSSCircuitu@n5est2d19h
10 1012060SSSCircuitu@n5est2d19h
11 1112060SSSCircuitu@n5est2d19h
12 1212060SSSCircuitu@n5est2d19h
LocID RemID Remote Name State Remote Address Port Sessions VPDN Group
103352883tunnel6est45.1.6.5170111tunnel6
LocIDRemIDTunIDIntfUsernameStateLast Chg
14 1410335SSSCircuitu@n6est2d19h
15 1510335SSSCircuitu@n6est2d19h
16 1610335SSSCircuitu@n6est2d19h
17 1710335SSSCircuitu@n6est2d19h
18 1810335SSSCircuitu@n6est2d19h
19 1910335SSSCircuitu@n6est2d19h
20 2010335SSSCircuitu@n6est2d19h
21 2110335SSSCircuitu@n6est2d19h
22 2210335SSSCircuitu@n6est2d19h
23 2310335SSSCircuitu@n6est2d19h
13 1310335SSSCircuitu@n6est2d19h
%No active L2F tunnels
%No active PPTP tunnels
%No active PPPoE tunnels
Example 9-4 uses the show interface virtual-access command to display information about virtual
access interface 3. In this example, the following information indicates a normal working status:
Virtual-Access3 is up, line protocol is up