which ios command to monitor packets

[sarahr202]

Hi everybody

Which ios command we can use to see as the packets enter or leave a particular port on cisco ios switches or router?

Here is my setp up

sw--- etherchannel---routed ports Router

I want to see which interface in etherchannel selects to send ip packets. We could use wireshark but my computer is pretty slow so I am wondering is there any particular ios command will do the job.

thanks and have a great weekend.

[acampbell]

Hi,

Try looking at this link

http://www.cisco.com/en/US/tech/tk389/tk213/technologies_tech_note09186a0080094714.shtml

There ar good tips here on how to work out which way traffic flows

Regards,
Alex.
Please rate useful posts.

[sarahr202]

Thanks Alex.

When I tried to open the link that is what i got:

The file or application you are trying to access may require additional  entitlement or you are trying to access a file with an invalid name.  Additional entitlement levels are granted based on a users relationship  with Cisco on a per-application basis.

[acampbell · Accepted solution]

Hi Sarah

Try the PDF

Regards,
Alex.
Please rate useful posts.

[sarahr202]

Thanks Alex