Hi, I want to setup core routers to do both DSCP marking and to get the DSCP and forward packets based on DS field. I don't want to separate DSCP marking to be done only at the edge routers. I know that dsmark is both used for DSCP marking and for getting the DSCP and forwarding packets according to DSCPs. In my case, since I want to do both of these I need two dsmarks.(?) I am not clear with how to connect output of the outer dsmark (that does DSCP marking) to the inner dsmark that will get the DSCP and put the packets in related qdiscs. Are there any samples of doing these two jobs at the same place? If anyone has ever done this before, does it degrade performance too much? Below is a piece of code I use for DSCP marking at edge: tc qdisc add dev eth0 handle 1:0 root dsmark indices 64 tc class change dev eth0 classid 1:1 dsmark mask 0x3 value 0xb8 tc class change dev eth0 classid 1:2 dsmark mask 0x3 value 0x58 tc filter add dev eth0 parent 1:0 prio 1 u32 match ip dport 0x%x 0xffff flowid 1:1 tc filter add dev eth0 parent 1:0 prio 2 u32 match ip dport 0x%x 0xffff flowid 1:2 Below is a similar kind of code I use at core for getting DSCP and distributing packets to classes: tc qdisc add dev eth0 handle 1:0 root dsmark indices 64 set_tc_index tc filter add dev eth0 parent 1:0 protocol ip prio 1 tcindex mask 0xfc shift 2 tc qdisc add dev eth0 parent 1:0 handle 2:0 cbq bandwidth 10Mbit cell 8 avpkt 1000 mpu 64 tc class add dev eth0 parent 2:0 classid 2:1 cbq bandwidth 10Mbit rate 1500Kbit avpkt 1000 prio 1 bounded isolated allot 1514 weight 1 maxburst 10 tc qdisc add dev eth0 parent 2:1 pfifo limit 5 tc filter add dev eth0 parent 2:0 protocol ip prio 1 handle 0x2e tcindex classid 2:1 pass_on ... I need to connect the two piece of code above at core router but I need help on this. Thx in advance. Gunes __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
