How to check port channel speed

[Sujish Sudhakaran]

Hi,

Recently I have configured port channel with 2x10gb/s Fiber ports. It is working fine. But how do I make sure that all 20Gbps is utilizing. When I check show interfaces port-channel 10 it showing “Full-duplex, 10Gb/s,” same time BW is showing 20 Gb/s. is this correct? Or how do I check it?

  Here is the output for Port-channel 10,

Switch#sh interfaces port-channel 10

Port-channel10 is up, line protocol is up (connected)

  Hardware is EtherChannel, address is 885a.92d1.1241 (bia 885a.92d1.1241)

  MTU 1500 bytes, BW 20000000 Kbit/sec, DLY 10 usec,

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

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 10Gb/s, media type is N/A

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

  Members in this channel: Te1/1 Te1/2

  ARP type: ARPA, ARP Timeout 04:00:00

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

  Last clearing of "show interface" counters never

  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 1000 bits/sec, 3 packets/sec

  5 minute output rate 4000 bits/sec, 7 packets/sec

     99602 packets input, 7910476 bytes, 0 no buffer

     Received 91193 broadcasts (81235 multicasts)

     0 runts, 0 giants, 0 throttles

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

     0 input packets with dribble condition detected

     312269 packets output, 28589039 bytes, 0 underruns

     0 output errors, 0 collisions, 3 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

[Leo Laohoo]

You don't.  You look at the individual interface of the port channel.

[Bilal Nawaz · Accepted solution]

Not sure if youre after the portchannel bandwidth or port-channel speed... If you really want to get an insight on the bandwidth usage, get SNMP on both sides, actively monitor the port channel and interfaces (real time by frequent polling)

And you could get two endpoints @ 10 gb nics that are bundled, then 'thrash' the link, end to end. I use iperf, you could use big ftp transfers to test and see what performance is. You'll get the rate / speed in which the links are operating 'end to end'

It may mean that the ports are @10gb full duplex, but the overall bandwidth is 20gb

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