On Wednesday 20 August 2003 14:58, Raghuveer wrote:
> What is confusing me is, there is a bandwidth provided by ISP (512Kbits)
> and one ethernet capacity(100Mbits), so which one can we call as real
> link bandwidth. What is NIC bandwidth....is it ethernet bandwidth or
> ISP bandwidth....?
> Lan------->eth1-----------eth0---------->Internet
> Now at eth0 I have ethernet device bandwidth as 100Mbits and my ISP
> provides 512Kbits bandwidth. so if I want to do egress traffic control
> at both eth0 and eth1, what bandwidth I should consider...? My eth1
> ethernet device bandwidth is 100Mbits.
What bout this :
for all cbq commands : bandwidth 100mbit
eth0
cbq qdisc
cbq class rate = 512kbit, bounded
cbq class 1, rate < 512kbit
cbq class ..., rate < 512kbit
cbq class x, rate < 512kbit
So all traffic from class 1 ... x togehter is bounded to 512kbit.
eth1
cbq qdisc
cbq class rate = 100mbit, bounded
cbq class 1, rate 512kbit bounded
cbq class 10, rate < 512kbit
cbq class ..., rate < 512kbit
cbq class x, rate < 512kbit
cbq class 2, rate 99,5Mbit
cbq class 20, rate < 99,5Mbit
cbq class ..., rate < 99,5Mbit
cbq class x, rate < 99,5Mbit
Class 1 is for all traffic from internet -> LAN
Class 2 is for all traffic from shaper -> LAN
And if you really want to be sure it's working, you should take 500kbit. So
YOU are the bottleneck and in control of the link and not the modem.
Stef
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