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Show interface Serial question


Does somebody have a clue what the "Available Bandwidth" line in the show interface output below means ? Find the "sh run" of this specific interface below as well.

router#sh int s0

Serial0 is up, line protocol is up

Hardware is MK5025

Internet address is xxxx

MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,

reliability 255/255, txload 28/255, rxload 22/255

Encapsulation HDLC, loopback not set

Keepalive set (10 sec)

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters 00:23:05

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: weighted fair

Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/74/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 1536 kilobits/sec

5 minute input rate 177000 bits/sec, 139 packets/sec

5 minute output rate 232000 bits/sec, 152 packets/sec

224217 packets input, 37116335 bytes, 0 no buffer

Received 163 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

246051 packets output, 54419398 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

#sh run int s0

Building configuration...

Current configuration : 220 bytes


interface Serial0

bandwidth 2048

ip address xxxx

ip accounting output-packets

ip pim sparse-mode

no ip mroute-cache

compress stac


Re: Show interface Serial question

This value is the amount of the bandwidth that can be assigned to user data (means out of layer-2/3 control traffic) in case you use CBWFQ queueing mechanism on this interface (75% of the interface bandwidth) but I see that there's no configured service-policy for this interface and therefore it doesn't affect you.


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