I have a link with 2 cisco routers on either end. The link is 2Mbps in size and I would like to take about 128Kbps off that line but still let it run over the same line using the same routers.
I want to route all my traffic over the 1920K line and nothing over the 128K.
So if the 1920Kbps link is full I can still reach the remote router by using the 128K part of the bandwidth.
I would like to know what this setup is called please? Technically it is not load balancing, although I recall having seen this done, but forgot the technical term.
Any help much appreciated.
According to the previous post, he's right. Modular QoS is the way to do what you want to. If your router doesn't support it, you may need to do an IOS update. The later IOS versions will support CBWFQ which will allow you to be able to segment your traffic, apply shaping/policing on that traffic, and prioritize traffic.
It is not possible to be very granular in BW with the pre-MQC methods. Beside, they are now deprecated.
If you have channelized hardware, you can configure different channel-groups to statically divide BW, but that is not a very good idea because the non-priority traffic will be unable to use all the physical circuit not even when there is no priority traffic. And the priority traffic will be slower all the time (longer serialization time).
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