Using the Debug ATM Commands
•Use the show atm vc n command to display statistics for a given PVC, where n is the VCD. The following is sample output from the show atm vc n command, with VCD 1 specified:
Router# show atm vc 1
ATM3/0.1: VCD: 1, VPI: 16, VCI: 32, etype:0x0, AAL5 - LLC/SNAP, Flags: 0x130
PeakRate: 8192, Average Rate: 8192, Burst Cells: 1024, VCmode: 0xE200
OAM DISABLED, InARP DISABLED
InPkts: 0, OutPkts: 9, InBytes: 0, OutBytes: 630
InPRoc: 0, OutPRoc: 9, Broadcasts: 0
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
OAM F5 cells sent: 0, OAM cells received: 0
Status: ACTIVE
•Use the show interfaces atm slot/port command to display statistics for the ATM interface you specify by its slot/port address as follows:
Router# show atm int ATM3/0 ATM interface ATM3/0:
AAL enabled: AAL5, Maximum VCs: 2048, Current VCCs: 2
Tx buffers 256, Rx buffers 256, Exception Queue: 32, Raw Queue: 32
VP Filter: 0x7B, VCIs per VPI: 1024, Max. Datagram Size:4496
PLIM Type:SONET - 155Mbps, TX clocking: INTERNAL 2 input, 18 output, 0 IN fast, 0 OUT fast
•Use the show atm traffic command to display the interface traffic as follows:
Router# show atm traffic 2 Input packets
18 Output packets
9 Broadcast packets
0 Packets received on
0 Packets attempted to send on
0 OAM cells sent
Using the Debug ATM Commands
The following debug commands are available to aid in solving ATM network problems:
•To create a dump of all protocol packets, use the debug atm packet command:
This command displays the contents of the SNAP/NLPID/SMDS header followed by the first 40 bytes of a packet in hexadecimal format.
•To display errors, use the debug atm errors command:
This command displays information from all detected ATM errors; including such errors as encapsulation failures and errors during ATM configuration.
ATM Cable Interface Processor (ACIP) Installation and Configuration 27
