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Bandwidth Utilization Calculation

Hi,

Can some one tell me how to calculate BW utilization from the router with input and output rate.

GigabitEthernet0/0 is up, line protocol is up

  Hardware is iGbE, address is 7081.050c.9e00 (bia 7081.050c.9e00)

  Description: *Gateway to VSNL-38Mb*

  Internet address is 10.70.10.202/30

  MTU 1500 bytes, BW 750000 Kbit/sec, DLY 100 usec,

     reliability 255/255, txload 10/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full Duplex, 100Mbps, media type is RJ45

  output flow-control is unsupported, input flow-control is unsupported

  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 2w0d

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 68599

  Queueing strategy: fifo

  Output queue: 0/2000 (size/max)

  30 second input rate 4784000 bits/sec, 2562 packets/sec

  30 second output rate 31248000 bits/sec, 3647 packets/sec

     1676866172 packets input, 830513729 bytes, 0 no buffer

     Received 148357 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 0 throttles

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

     0 watchdog, 148309 multicast, 0 pause input

5 REPLIES 5
John Blakley
Advisor

I see 4.7Mb inbound and 31Mb outbound. Is that what you're wanting to know?

HTH, John *** Please rate all useful posts ***

Actually this ouptut is for one interface . On the whole taking both input and ouput how to calculate Bandwidth utilization. 

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Posting

Full Duplex, 100Mbps, media type is RJ45

30 second input rate 4784000 bits/sec (100 Mbps), 2562 packets/sec = 4.78%

30 second output rate 31248000 bits/sec (100 Mbps), 3647 packets/sec = 32.25%

or perhaps

Description: *Gateway to VSNL-38Mb*

30 second input rate 4784000 bits/sec (38 Mbps), 2562 packets/sec = 12.59%

30 second output rate 31248000 bits/sec (38 Mbps), 3647 packets/sec = 82.23%

Actually this ouptut is for one interface . On the whole taking both input and ouput how to calculate Bandwidth utilization.

Do you want to see the "realtime" utilization or you just want a snapshot?  Fluke's got some tools which can give you a history of your bandwidth utilization based on SNMP.

What is the model of your router and what is your bandwidth?  I can see you have some output drops which probably means the remote end of this interface is rejecting Tx packets from the router interface and to the next hop.

Use MRTG or PRTG software to moniter the link