show interfaces cable-modem

To display the number of packets and bytes of each protocol type passing through the cable access router interface, use the accounting option with the show interface cable-modemcommand:

uBR924# show interface cable-modem 0 accounting

cable-modem0

 

 

 

 

Protocol

Pkts In

Chars In

Pkts Out

Chars Out

IP

545

185502

159

90240

Trans. Bridge

3878

964995

12597

1611142

ARP

73

3066

86

4128

Table 17 describes the fields shown in this display.

Table 17

show interfaces cable-modem Accounting Descriptions

 

 

Field

Description

 

 

Protocol

List of protocols operating on the cable-modem interface.

 

 

Pkts In

Number of packets of each protocol received on the interface.

 

 

Chars In

Number of bytes of each protocol received on the interface.

 

 

Pkts Out

Number of packets of each protocol transmitted on the interface.

 

 

Chars Out

Number of bytes of cach protocol transmitted on the interface.

 

 

MIB counters on the cable interface are displayed in the next example:

uBR924# show int cable-modem 0 counters

Cable specific counters:

 

Ranging requests sent

:

50982

Downstream FIFO full

:

0

Re-requests

:

7277

DS MAC Message Overruns:

0

DS Data Overruns

:

0

Received MAPs

:

254339485

Received Syncs

:

53059555

Message CRC failures

:

0

Header CRC failures

:

1394

Data PDUs

:

5853

DS MAC messages

:

307861745

Valid Headers

:

307869065

Sync losses

:

0

Pulse losses

:

1

BW request failures

:

6

Table 18 describes the counters shown in this display.

Table 18

show interfaces cable-modem Counters Descriptions

 

 

 

Field

 

Description

 

 

Ranging requests sent

Number of ranging requests sent by the Cisco uBR900 series to the CMTS.

 

 

Downstream FIFO full

Number of times the downstream input first-in first-out (FIFO) buffer became full on

 

 

the Cisco uBR900 series.

 

 

 

Re-requests

 

Number of times a bandwidth request generated by the Cisco uBR900 series was not

 

 

responded to by the CMTS.

 

 

DS MAC Message Overruns

Number of times the Cisco uBR900 series’s DMA controller had a downstream MAC

 

 

message and there were no free MAC message buffer descriptors to accept the

 

 

message.

 

 

 

Configuring the Cisco uBR900 Series Cable Access Routers 115

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Cisco Systems UBR900 Show interfaces cable-modem Accounting Descriptions, UBR924# show interface cable-modem 0 accounting