Troubleshooting guide

6-7
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 6 Troubleshooting Switch Router ATM Network Connections
Troubleshooting PVP and PVC Connections
Follow these steps to confirm UBR for the PVC and PVP best-effort connection limit configuration on
the interface.
Step 1 Use the show atm interface resource atm card/subcard/port command to confirm the maximum
number best-effort connection limit configuration number.
Switch# show atm interface resource atm 10/0/0
Resource Management configuration:
Output queues:
Max sizes(explicit cfg): none cbr, none vbr-rt, none vbr-nrt, none abr-ubr
Max sizes(installed): 256 cbr, 256 vbr-rt, 4096 vbr-nrt, 12032 abr-ubr
Efci threshold: 25% cbr, 25% vbr-rt, 25% vbr-nrt, 25% abr, 25% ubr
Discard threshold: 87% cbr, 87% vbr-rt, 87% vbr-nrt, 87% abr, 87% ubr
Abr-relative-rate threshold: 25% abr
Pacing: disabled 0 Kbps rate configured, 0 Kbps rate installed
Service Categories supported: cbr,vbr-rt,vbr-nrt,abr,ubr
Link Distance: 0 kilometers
Controlled Link sharing:
Max aggregate guaranteed services: none RX, none TX
Max bandwidth: none cbr RX, none cbr TX, none vbr RX, none vbr TX,
none abr RX, none abr TX, none ubr RX, none ubr TX
Min bandwidth: none cbr RX, none cbr TX, none vbr RX, none vbr TX,
none abr RX, none abr TX, none ubr RX, none ubr TX
Best effort connection limit: 10 max connections
Max traffic parameters by service (rate in Kbps, tolerance in cell-times):
Peak-cell-rate RX: none cbr, none vbr, none abr, none ubr
Peak-cell-rate TX: none cbr, none vbr, none abr, none ubr
Sustained-cell-rate: none vbr RX, none vbr TX
Minimum-cell-rate RX: none abr, none ubr
Minimum-cell-rate TX: none abr, none ubr
CDVT RX: none cbr, none vbr, none abr, none ubr
CDVT TX: none cbr, none vbr, none abr, none ubr
MBS: none vbr RX, none vbr TX
Resource Management state:
Cell-counts: 0 cbr, 0 vbr-rt, 0 vbr-nrt, 0 abr-ubr
Available bit rates (in Kbps):
147743 cbr RX, 147743 cbr TX, 147743 vbr RX, 147743 vbr TX,
0 abr RX, 0 abr TX, 0 ubr RX, 0 ubr TX
Allocated bit rates:
0 cbr RX, 0 cbr TX, 0 vbr RX, 0 vbr TX,
0 abr RX, 0 abr TX, 0 ubr RX, 0 ubr TX
Best effort connections: 1 pvcs, 0 svcs
Switch#
Step 2 Check the Best effort connection limit field max (maximum) connections number. If the number is too
low, increase it using the atm cac best-effort-limit interface command.
Step 3 Check the Best effort connection field to determine the number of established connections. If no
connections are available, the connection fails.
To modify the best-effort connection limit, see the “Configuring Resource Management” chapter in the
ATM Switch Router Software Configuration Guide.