Stef Coene wrote: >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. > > Thanks alot Stef, Its very clear to me now. If I have ADSL with different incoming and outgoing rates. For egress shaping at WAN(eth0) interface, Whether should I use outgoing rates or combined rates (incomming + outgoing). Will it make any big difference if I use combined rates in an asymmetric link like cabel modem, ADSL etc. Regards -Raghu >Stef > > >
