[c-nsp] QoS on ingress

Heath Jones hj1980 at gmail.com
Fri Sep 10 15:14:33 EDT 2010

Jay I know it might sound ridiculously obvious, but is another T1 out of the

On 10 September 2010 19:44, Jay Nakamura <zeusdadog at gmail.com> wrote:

> I can't seem to figure out what to do with my situation, wondering if
> anyone had encountered this.
> Situation :
> Router : 1841 IOS 12.4T or 15.0M
> Internet T1, two eth Interfaces
> There are VoIP traffic (SIP & RTP) and general internet traffic
> VoIP provider does not tag SIP/RTP with any kind of QoS in IP header.
> (DSCP/IPP)  Internet provider can do QoS based on IPP but since VoIP
> traffic is not marked, it's not useful.
> Problem to solve : how to not drop >ingress< VoIP traffic when
> internet traffic is high as much as possible without capping the
> non-VoIP traffic to less than T1 bandwidth.
> Caveat : I understand that since it's not getting policed at the
> egress from the provider, any solution is not going to be perfect
> I can't limit the traffic on the Eth interface egress because traffic
> can go to either eth interface.
> Any thoughts?
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