Cisco Cisco IOS Software Release 12.4(15)T

This section documents only commands that are new or modified.

To display debug messages for ATM T3/E3 network modules, use the debug atm t3e3 command in 
privileged EXEC mode. To disable debugging output, use the no form of this command.

debug atm t3e3 {data | flow | pa | sar | trace}

no debug atm t3e3 {data | flow | pa | sar | trace}

Privileged EXEC (#) 

Use the debug atm t3e3 data command to display the incoming packet indications. Each incoming 
packet transferred by direct memory access (DMA) to the host memory by the SAR will cause a packet 
indication.

Use the debug atm t3e3 flow command to display flow control indications.

When traffic sent to the SAR exceeds the peak cell rate for a particular virtual circuit (VC), the SAR 
indicates this to the host by sending flow control indications. These indications inform the host that 
either the high watermark or the low watermark has been reached for that VC queue.

When a high watermark is received from the SAR, indicating that the VC queue is full, the host will stop 
sending packets to the SAR until a low watermark indication is received. A low watermark indicates that 
the VC queue has been drained sufficiently to receive additional packets.

Displays debug messages for incoming packet indications.

Displays debug messages for flow control indications.

Displays debug messages for online insertion or removal (OIR) of the ATM 
T3/E3 network module.

Displays debug messages for blocking commands sent to the segmentation 
and reassembly (SAR) and their acknowledgments.

Displays debug messages that give the hexadecimal representation of 
commands sent to the SAR and their acknowledgments.

12.4(15)T

This command was introduced.