show interfaces cable-modem
Examples
Traffic passing through the cable access router interface is shown in the following example:
uBR924# show interfaces
Hardware is BCM3300, address is 0050.7366.2439 (bia 0050.7366.2439) Internet address is 5.2.0.11/16
MTU 1500 bytes, BW 27000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255
Encapsulation DOCSIS, loopback not set Keepalive set (10 sec)
ARP type:ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 00:08:40 Queueing strategy:fifo
Output queue 40/40, 52787 drops; input queue 0/75, 0 drops 5 minute input rate 2000 bits/sec, 2 packets/sec
5 minute output rate 94000 bits/sec, 154 packets/sec
1074 packets input, 418472 bytes, 0 no buffer
Received 19 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 78771 packets output, 6326786 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Table 16 describes the significant fields shown in the display.
Table 16 | show interfaces | |
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Field |
| Description |
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Indicates that the interface is currently active. “Disabled” indicates the interface | ||
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| has received more than 5000 errors in one keepalive interval (10 seconds by |
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| default if keepalive is set); “administratively down” indicates the interface has |
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| been taken down by an administrator. |
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line protocol is up | Indicates that the software processes that handle the line protocol believe the | |
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| interface is usable. |
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Hardware |
| Hardware type and MAC address. |
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Internet address | Internet address followed by the shorthand notation for the subnet mask. | |
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MTU |
| Maximum Transmission Unit (equivalent of the maximum packet size) for the |
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| interface. |
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BW |
| Bandwidth of the interface in kilobits per second. |
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DLY |
| Delay of the interface in microseconds. |
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reliability |
| Reliability of the interface, expressed as a fraction of 255, calculated as an |
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| exponential average over a |
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tx load/rx load |
| Load on the interface caused by transmitting and receiving, expressed as a |
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| fraction of 255, calculated as an exponential average over a 5 minute period. |
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Encapsulation/loopback/keepalive | Encapsulation method assigned to the interface. | |
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loopback |
| Indicates whether or not loopback is set. |
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keepalive |
| Indicates whether or not keepalives are set. |
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ARP type |
| Type of Address Resolution Protocol configured for the interface. |
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ARP Timeout |
| Number of hours, minutes, and seconds an ARP cache entry will stay in the |
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| cache. |
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