Identify Specify Traffic

[gurmeetsingh12]

                   Hi All,

I am facing issue at one site , the Metro ethernet link is bottle neck its a 100 MB link and as per the suggestion site required to upgrade the link to 1gig link but before upgrading i want to implement QOS and rate limit , Please be advice who i check which applications or traffic or users using more bandwith , what other steps i can take to check the data before upgrading the link .

Thanks in advance !!!

Thanks all for your reply!!!!

Its a metroethernet link between the switches , apart from the netflow what other things we can use to analyze the data and after fetching the data how should move forward for placing the qos or rate-limit

[rfalconer.sffcu]

You can use Netflow to gather information about what is passing through the that WAN link.

[gurmeetsingh12]

Thanks  for your reply!!!!

Its a metroethernet link between the switches , apart from the netflow what other things we can use to analyze the data and after fetching the data how should move forward for placing the qos or rate-limit

[Joseph W. Doherty]

Disclaimer

The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

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In  no event shall Author be liable for any damages whatsoever (including,  without limitation, damages for loss of use, data or profit) arising out  of the use or inability to use the posting's information even if Author  has been advised of the possibility of such damage.

Posting

what other steps i can take to check the data before upgrading the link .

You could try QoS first.  If you're using a router that supports some form of fair-queue, that will often handle congestion well without further traffic identification.

[gurmeetsingh12]

Thanks  for your reply!!!!

Its a metroethernet link between the switches , apart from the netflow what other things we can use to analyze the data and after fetching the data how should move forward for placing the qos or rate-limit

[Joseph W. Doherty]

Disclaimer

The   Author of this posting offers the information contained within this   posting without consideration and with the reader's understanding that   there's no implied or expressed suitability or fitness for any purpose.   Information provided is for informational purposes only and should not   be construed as rendering professional advice of any kind. Usage of  this  posting's information is solely at reader's own risk.

Liability Disclaimer

In   no event shall Author be liable for any damages whatsoever (including,   without limitation, damages for loss of use, data or profit) arising  out  of the use or inability to use the posting's information even if  Author  has been advised of the possibility of such damage.

Posting

Its a metroethernet link between the switches , apart from the netflow what other things we can use to analyze the data and after fetching the data how should move forward for placing the qos or rate-limit

Much depends on features of your device and exactly how detailed you wish to analyse the traffic.

Other possible features include, netflow caching stats, nbar stats, ip accounting, ACLs, traffic analysis with a NAM, etc.