Troubleshooting guide

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ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 6 Troubleshooting Switch Router ATM Network Connections
Troubleshooting the PNNI Database
If the neighbor machine remains in the Negotiating, Exchanging, or Loading state, turn on debugging by
using the debug atm pnni adj-event command and debug atm pnni adj-packet command to see the
individual events and the packets being exchanged.
Enter the no debug all command to turn off debug messages.
Checking the Flat Network or the Database Within the Same Peer Group
Use the following command to check the nodes in the peer group:
Follow these steps to list all nodes in the peer group along with the PTSEs that each node originates:
Step 1 Use the show atm pnni database command to list all nodes in the peer group.
Switch# show atm pnni database 1
Node 1 ID 96:160:47.00918100000000E04FACB401.00E04FACB401.00 (name: Switch)
PTSE ID Length Type Seq no. Checksum Lifetime Description
1 92 97 117 37853 3143 Nodal info
2 52 224 3331 18077 3016 Int. Reachable Address
Switch#
Step 2 Use the show atm pnni database command (again), with the detail command option.
Switch# show atm pnni database 1 detail
Node 1 ID 96:160:47.00918100000000E04FACB401.00E04FACB401.00 (name: Switch)
PTSE ID Length Type Seq no. Checksum Lifetime Description
1 92 97 117 37853 3135 Nodal info
Time to refresh 1441, time to originate 0
Type 97 (Nodal info), Length 48
ATM address 47.00918100000000E04FACB401.00E04FACB401.00
priority 0, leader bit NOT SET
preferred PGL 0:0:00.000000000000000000000000.000000000000.00
2 52 224 3331 18077 3008 Int. Reachable Address
Time to refresh 1478, time to originate 0
Type 224 (Int. Reachable Address), Length 32, Port 0, vp capable
Scope (level) 0, Address info length (ail) 16, Address info count 1
Pfx: 47.0091.8100.0000.00e0.4fac.b401..., length 104
Switch#
These commands should display similar information when the command is used on any other node in
the same peer group.
The only differences are the internal node numbers (Node n), which are independently assigned by each
node so that node 1 represents the node itself and other numbers are assigned as new nodes are
discovered. The PTSE information might also differ for the valid case where some nodes have received
more recent information than other nodes. A redisplay of the information on the node, which originally
displayed older information for some PTSEs, normally shows more recent information, but might also
have even newer information for other PTSEs.
Command Purpose
show atm pnni database [internal-node-number]
[detail]
Confirms all nodes in the peer group with
the PTSEs that each node originates.