Troubleshooting guide
13-21
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 13 Troubleshooting ATM Router Module Connections
Troubleshooting RFC 1483 on ATM Router Module Connections
Figure 13-9 ATM Router Module RFC 1483 Example Network
This example network is used in the following troubleshooting process.
To troubleshoot the ATM router module configured with RFC 1483 and with aggressive policing
configured follow these processes:
• Verify VC status between ATM router module interfaces and the route processor.
• Display VC details between ATM router module interfaces and ATM interfaces
• Display VC details between ATM router module interfaces and Ethernet interfaces
• Verify policing or Usage Parameter Control (UPC) on switch and traffic shaping on routers
–
Policing UPC—Traffic is constantly monitored at the switch to ensure the contract is not
violated. Non-conforming cells may be marked, dropped or passed
–
Traffic shaping—Typically done at edge devices to reduce burstiness. Decreases probability of
cell loss at expense of occasional delay between ATM router module interfaces and Ethernet
interfaces
Follow these steps to troubleshoot the ATM router module configured with RFC 1483 and very
aggressive policing.
Step 1 Use the following commands to configure the aggressive policing, the ATM router module with RFC
1483, and the map list.
Switch(config)# atm connection-traffic-table-row index 110 ubr pcr 1
Switch(config)# interfaces atm10/0/1.3 multipoint
Switch(config-if)# ip address 2.2.0.2 255.255.255.0
Switch(config-if)# map-group RFC1483_2
Switch(config-if)# atm pvc 2 109 pd on interface ATM0/0/0 0 109 upc drop
Switch(config-if)# exit
Switch(config)# int atm10/0/1.3 multipoint
Switch(config-if)# atm pvc 2 101 pd on interface ATM0/0/1 0 101
Switch(config-if)# bridge-group 10
Switch(config-if)# exit
Switch(config)# map-list RFC1483_2
Switch(config-map-list)# ip 2.2.0.1 atm-vc 109 broadcast
Switch(config-map-list)# end
Switch(config)# bridge 10 protocol ieee
Ethernet
2.2.0.0/16
Ethernet
1.1.0.0/16
Cisco 7500
Cisco 7500
Catalyst 8510 or 8540
with ATM router module
int atm10/0/0.1 (ARM), 1.1.1.2
int atm10/0/1.3 (ARM), Bridged PDU
52141
ATM
Ethernet
2.2.0/16
SI