QoS Cisco 877

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Aug 23rd, 2010
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hi,


I have a Cisco 877 router as an internet gateway.

I have a very low link to the internet (about 1Mbps in down) and I would like to make QoS on my 877 to prioritize my VPNs (UDP 500, ESP... or if it is more easy in entering several public ip) in telling by example :


VPNs => 80% bandwidth

Internet => 20% bandwidth


I tried to find solution on net but I'm a bit lost so if someone could help me, that would be great.


thx


Nicolas

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paolo bevilacqua Mon, 08/23/2010 - 02:44
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Congestion happens in the ISP network, on which you have no control.


Consequently, you cannot do anything about.


Before someone jumps and say: "Try shaping LAn interface instead", that is not a good idea either, as the only effect you achive, is to limit Internet performances at all times, even when VPN is not needed.

nvanhaute Mon, 08/23/2010 - 03:22
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hi


thanks for your answer


I just forgot to mention that my VPN is done by an other router behind my gateway, same for internet trafic... so all is not mixed

so my 877 is really only my internet gateway


indeed, of VPN is not used, bandwidth should be used for internet access


in resume, I would like to get by exemple in download :


VPN trafic : 800 Kbps if needed

Other (internet) : 200 Kbps


but if VPN uses only 500, well "Other (internet)" could increase



regards


Nicolas

paolo bevilacqua Mon, 08/23/2010 - 03:43
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As mentioned above, there is nothign you can do about, for the reason explained.

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