Cisco Systems UBR900 specifications Show interfaces cable-modem Accounting Descriptions

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