packet drops

[Antkane01]

Hi, we have a cisco 2801 router on our network and we are experiencing dropped packets when we have a CCTV system connected ,we have a 10mb line and about 50% of this is taken up when connected ,there are only four users in the office ,they experience performance issues when the CCTV camera is connected.Any ideas on how to prioritize data and voice traffic over the CCTV traffic.

Thanks

[Joseph W. Doherty]

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Posting

Ideas?  Lots.

What QoS policy are you using now, if any?

What are the physical connections?

[Antkane01]

Hi Joseph,thanks for responding ,there are no Qos policies set up and the physical connections are all cat4.

Thanks

[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

So, the 2801's interfaces are just Ethernet physically running at 10 Mbps?

If so (and if your IOS isn't current - forgot to ask what IOS you're using), see if the command fair-queue is accepted on your physical Ethernet interfaces.  If so, see if your users see an improvement.  Also monitor CPU history, before and after this change.

If that doesn't cure your issue, let us know, and we'll proceed to something a little more complicated.

[Antkane01]

the ios version is 151-4., cannot issue the fair queue command and the cpu history is running at about 60%

[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

Ok, that's not a surprise with 15.x code - which I why I mentioned current IOS.

So, try:

policy-map yourname

class class-default

fair-queue

interface x

service-policy output yourname