Solved

Port-Channel Interface Bandwidth

Posted on 2014-10-24
6
312 Views
Last Modified: 2014-10-24
I have configured a port channel interface that bundle 2 Ethernet interfaces (10000 Kbits each), I was expecting to see the Bandwidth of the port-channel to be 20000 Kbits, but it shows 100000Kbits.
I would like to know how it came up with this number.

Thanks
SW1#show etherchannel summary 
    Number of channel-groups in use: 2
Number of aggregators:           2

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
1      Po1(SD)          -        Et0/0(D)    Et0/1(D)    

Open in new window





SW1#show interfaces e0/0 | include BW
  MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec, 
SW1#

Open in new window

SW1#show interfaces e0/1 | include BW
  MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec, 
SW1#

Open in new window

SW1#show interfaces port-channel 1 | include BW
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, 
SW1#

Open in new window

0
Comment
Question by:jskfan
  • 3
  • 3
6 Comments
 
LVL 26

Assisted Solution

by:Predrag Jovic
Predrag Jovic earned 500 total points
ID: 40401947
Po1(SD)          -        Et0/0(D)    Et0/1(D)    

Your channel is down. When bundled in etherchannel should be something like

Po1(SU)         -      Et0/0(P)    Et0/1(P)

#sh etherchannel summary
Flags:  D - down        P - bundled in port-channel
        I - stand-alone s - suspended
        H - Hot-standby (LACP only)
        R - Layer3      S - Layer2
        U - in use      f - failed to allocate aggregator
        M - not in use, minimum links not met
        u - unsuitable for bundling
        w - waiting to be aggregated
        d - default port
0
 

Author Comment

by:jskfan
ID: 40402169
One port channel BW shows correct , but the other does not.


SW1#sh etherchannel summary 
    
Number of channel-groups in use: 2
Number of aggregators:           2

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
1      Po1(SU)          -        Et0/0(P)    Et0/1(P)    
2      Po2(SU)          -        Et0/2(P)    Et0/3(P)    

SW1#

Open in new window


SW1#sh interfaces port-channel 1 | include BW
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, 
SW1#sh interfaces port-channel 2 | include BW
  MTU 1500 bytes, BW 20000 Kbit/sec, DLY 1000 usec, 
SW1#

Open in new window

0
 
LVL 26

Accepted Solution

by:
Predrag Jovic earned 500 total points
ID: 40402187
Probably some misconfiguration on ports:
Delete port channel and set interfaces to default config, and try again.
Setting on interfaces (on both side) must be the same. (Po1 has DLY 100 usec, Po2 DLY 1000 usec - one of them is not at default value - and that's the probable reason for error - switch from other side probably have some different setting than SW1) :)

You cab restore interfaces to their defaults (under interface) with
Router(config-if)#default interface fa0/0
0
What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

 

Author Comment

by:jskfan
ID: 40402486
Reload ...fixed it..Thanks
0
 

Author Closing Comment

by:jskfan
ID: 40402488
Thanks
0
 
LVL 26

Expert Comment

by:Predrag Jovic
ID: 40402497
Any time. :)
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

This article is a guide to configure bridging on Cisco Routers.  This is something I never knew was possible until after making a few phone calls to Cisco.  Using bridging saved our company money by not requiring us to purchase a new switch.  Bridgi…
There are two basic ways to configure a static route for Cisco IOS devices. I've written this article to highlight a case study comparing the configuration of a static route using the next-hop IP and the configuration of a static route using an outg…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

708 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now