Troubleshooting guide

6-49
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 6 Troubleshooting Switch Router ATM Network Connections
Troubleshooting PNNI Hierarchical Networks
Checking Missing Upnode or Aggregation Token Pairs
Use the following commands to check the uplink PTSEs and derived aggregation token configuration:
Follow these steps to troubleshoot missing upnode and aggregation token pairs on border nodes:
Step 1 Use the show atm pnni database command to check the PGL for an uplink PTSE originated by border
nodes.
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 Check to see whether an expected upnode and aggregation token pair is missing from the table listed on
the PGL. Also check to see whether the PGL receives an uplink PTSE originated by one or more of the
known border nodes.
Step 3 Use the internal-node-number option and the detail option to examine the contents of the uplink PTSE
for a border node.
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# 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#
Step 4 If an expected uplink PTSE is missing, enter the same command on the border node switch router.
Step 5 If the uplink PTSE is present in the border node database but not in the PGL database, see the
“Troubleshooting the PNNI Database” section on page 6-30 for further debugging.
Command Purpose
show atm pnni database [internal-node-number]
[detail]
Confirms uplink PTSEs for the border
nodes.
show atm pnni interface atm card/subcard/port
[detail]
Confirms the hello state and derived
aggregation token value on the node.