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Community Member

Is my Interface bandwidth maxed out

Below is a show int

What is exactly TX and RX load? Looks like it is very high on the interface.

Looks like the drops are high too.

The 5 min output rate is very high too. Does the 5 minute mean avg. output rate for the 5 minutes or was it the peak output rate for 5 minutes.

Serial3/1:1 is up, line protocol is up

Hardware is Multichannel T1

Internet address is XX.xx.xx.xx

MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,

reliability 255/255, txload 213/255, rxload 96/255

Encapsulation PPP, crc 16, Data non-inverted

Keepalive set (10 sec)

LCP Open

Listen: CDPCP

Open: IPCP

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

Last clearing of "show interface" counters 7w0d

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 24955299

Queueing strategy: weighted fair

Output queue: 0/1000/64/24955258 (size/max total/threshold/drops)

Conversations 0/17/16 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 1152 kilobits/sec

5 minute input rate 584000 bits/sec, 285 packets/sec

5 minute output rate 1287000 bits/sec, 1109 packets/sec

1382477829 packets input, 1021681375 bytes, 0 no buffer

Received 0 broadcasts, 11 runts, 0 giants, 0 throttles

38 input errors, 16 CRC, 0 frame, 0 overrun, 0 ignored, 5 abort

1597696251 packets output, 485512542 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

5 carrier transitions

no alarm present

Timeslot(s) Used:1-24, subrate: 64Kb/s, transmit delay is 0 flags


Re: Is my Interface bandwidth maxed out

TXload and RXload are ratios of usage based on what the bandwidth is set to on the interface. It looks like you have a full T1 1.544Mbps. Your load does look high.

213/255=83% XMT

96/255=37% RCV

Looks like it's pretty full to me.

Total output drops: 24955299

That's quite a bit; however, you don't know what timeframe that occured in since the interface counters were last cleared 7 weeks ago:

Last clearing of "show interface" counters 7w0d

clear the interface counters and watch it over some time to see if the drops still are occuring.

If you still have high txload and rxload and are seeing drops steadily increment, you're out of bandwidth.

The 5 minute input rate and output rate is based on an average during the sampling period. To get more accurate results, decrease the load interval to 30 seconds by using the interface command:

load-interval 30

Community Member

Re: Is my Interface bandwidth maxed out

Thanks for the info!

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