show interfacePort-channel output needs answer

[Mohammad Ramadan A.Hafiez]

Hello Guys,

I have configuration on 3560 switch port-channel configured as LACP and when I issue the show interface port-channel 11 command the output is..EFTA-3560G-EDGE2#sho int port 11
Port-channel11 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 001a.6c1c.8e81 (bia 001a.6c1c.8e81)
Description: ****** To Core  portchannel 11 ****
MTU 1500 bytes, BW 2000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is unknown
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi0/1 Gi0/2
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 never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 527000 bits/sec, 102 packets/sec
5 minute output rate 122000 bits/sec, 69 packets/sec
14033193 packets input, 7648894596 bytes, 0 no buffer

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as you can see the BW and speed in this port-channel are different, is this normal behavior for this port-channel to have the bandwidth yes corred 2x1G but the link speed is 1G only? if not then how to solve it?

ty

[Mark Malone · Accepted solution]

Hi

What you see there is perfectly normal and expected like another example below , one of my pos has 4 links , link speed doesn't change its hardware based , bandwidth statements can be used for logical routing metrics for path preference  , they can be adjusted to what you decide

Port-channel4 is up, line protocol is up (connected)
  Hardware is EtherChannel, address is 0008.e3ff.fd90 (bia 0008.e3ff.fd90)
  Description: 
  Internet address is 
  MTU 1500 bytes, BW 4000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 4/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is unknown

[Pawan Raut · Accepted solution]

You have two Physical link in Port channel and each having 1Gbps Bandwidth so combine BW is 2x1 Gbps = 2Gbps and Speed  and Duplex showing in output is Speed/duplex(  1Gbps/Full) of each Physical link.  It is normal. If you bunddel 8 links of Gig interface then it will show BW as 8Gbps and speed/dulex of each link 1Gbps/Full. Hope you understand this.

Regards,

Pawan CCIE#52104

[Mohammad Ramadan A.Hafiez]

Thaaank you both..sounds convincing :)