I have been trying to get an example of Linux tc Diffserv AF to work. I am trying to follow the example at web_dot_opalsoft_dot_net slash qos example acfbq. I had to change the order of the commands as best I could figure out as noted in the web page description of the commands. I have also looked at the perl script at: github_dot_com slash sivasankariit slash iproute2 slash blob slash master slash examples slash diffserv slash afcbq I first run into trouble with the tc qdisc change .... DP X probability 0x01 prio 2 commands because the example uses DP 3 but I get rejected for that value. I shifted to values 0, 1 and 2 instead of the 1, 2 and 3 in the example. I am actually trying to include EF and C 6 queues and I have had that working in a bigger script with the AF system but the AF frames are not showing as getting queued when doing the qdisc show: tc -s -d qdisc show I see the AF packets I am sending from a test set enter the dsmark 1: and the qdisk htb 2: stats but they do not show up under any vq or even the BE queue. I am sending the DS bits for AF11: 00101000b (0x28) which becomes 0x0A after the shift 2. I am including my script at the end of the emal for AF and BE which is about as close as I can get to the opalsoft example at the end of the email. I understand the tcindex mask 0xfc shift 2 will give me only the diffserv bits. The command: # ---- AF Class 1 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 10 tcindex classid 1:111 Should then match on the 10 (0x0A) AF11 value and give it id 0x111 # -- Main AF htb classifier's elements tc filter add dev agl0 parent 2:0 protocol ip prio 1 tcindex mask 0xf0 shift 4 pass_on Should give me a 0x01? And this should be matched by the filter handle 1: # 11 -- AF Class 1 tc filter add dev agl0 parent 2:1 protocol ip prio 1 handle 1 tcindex classid 2:10 Which I would expect to end up in vq0 of the 2:10 queue. Any hints or help would be greatly appreciated. This is something that I need to get working and is not some homework assignment. Thanks, James Munn bin script below: echo "Creating AGL0 DiffServ Default construct" echo "Disabling ARP on AGL0" ip link set dev agl0 arp off # Notes: # Show qdisc: tc -d qdisc deg agl0 # Show filters: tc filter show dev agl0 # Show Filters of other classes: tc filter show dev agl0 filter parent 2:1 # REMOVE any OLD RULES! tc qdisc del dev agl0 root # - Main dsmark and classifier tc qdisc add dev agl0 handle 1:0 root dsmark indices 64 set_tc_index tc filter add dev agl0 parent 1:0 protocol ip prio 1 tcindex mask 0xfc shift 2 pass_on echo " After Main dsmark and classifier" # - Main dsmark classifier's elements # ---- AF Class 1 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 10 tcindex classid 1:111 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 12 tcindex classid 1:112 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 14 tcindex classid 1:113 # ---- AF Class 2 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 18 tcindex classid 1:121 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 20 tcindex classid 1:122 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 22 tcindex classid 1:123 # ---- AF Class 3 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 26 tcindex classid 1:131 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 28 tcindex classid 1:132 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 30 tcindex classid 1:133 # ---- AF Class 4 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 34 tcindex classid 1:141 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 36 tcindex classid 1:142 tc filter add dev agl0 parent 1:0 protocol ip prio 1 handle 38 tcindex classid 1:143 echo "After AF Class 4" # ---- BE ### I am not sure this should be here or what it does? tc filter add dev agl0 parent 1:0 protocol ip prio 2 handle 0 tcindex classid 1:1 # - Main htb qdisc & class and Max Rate tc qdisc add dev agl0 parent 1:0 handle 2:0 htb tc class add dev agl0 parent 2:0 classid 2:1 htb rate 10Mbit ceil 156Mbit echo "After Main htb qdisc" # - Class Selector 6 (2:10) Just Max Queue Depth ### tc class add dev agl0 parent 2:1 classid 2:10 htb rate 10Mbit ceil 156Mbit # Response: HTB: quantum of class 20010 is big. Consider r2q change. ### tc qdisc add dev agl0 parent 2:10 pfifo limit 50 ### tc filter add dev agl0 parent 2:0 protocol ip prio 1 handle 0x30 tcindex mask 0x003f classid 2:10 pass_on # - EF Class (2:20) Just Max Queue Depth ### tc class add dev agl0 parent 2:1 classid 2:20 htb rate 1500Kbit ceil 156Mbit # Response: HTB: quantum of class 20020 is big. Consider r2q change. ### tc qdisc add dev agl0 parent 2:20 pfifo limit 5 ### tc filter add dev agl0 parent 2:0 protocol ip prio 1 handle 0x2e tcindex mask 0x003f classid 2:20 pass_on echo "After EF Class filter" # -- Main AF htb classifier's elements tc filter add dev agl0 parent 2:0 protocol ip prio 1 tcindex mask 0xf0 shift 4 pass_on echo "After Main AF htb classifer's elements" # - AF Class 1 (2:30) Service Rate, Drop Precedence tc class add dev agl0 parent 2:1 classid 2:10 htb rate 10Mbit ceil 156Mbit #tc qdisc add dev agl0 parent 2:10 red limit 60KB min 15KB max 45KB burst 29 avpkt 100 bandwidth 10Mbit probability 0.4 tc qdisc add dev agl0 parent 2:10 gred setup DPs 3 default 2 grio # if default == 3 then response "default" must be less than "vqs" # 11 -- AF Class 1 tc filter add dev agl0 parent 2:1 protocol ip prio 1 handle 1 tcindex classid 2:10 echo "After AF Class 1 (2:10)" #tc qdisc change dev agl0 root gred limit <bytes> min <bytes> max <bytes> burst <packets> bandwidth 156Mbit \ # DP <vq> probability <number> prio <number> tc qdisc change dev agl0 parent 2:10 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 0 probability 0.01 prio 2 echo "After qdiscc change 2:10" tc qdisc change dev agl0 parent 2:10 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 1 probability 0.01 prio 3 tc qdisc change dev agl0 parent 2:10 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 2 probability 0.01 prio 4 echo "After qdisc change DP 1 - 3 2:10" ### tc filter add dev agl0 parent 2:0 protocol ip prio 6 handle 0x08 tcindex mask 0x39 classid 2:30 pass_on # - AF Class 2 (2:40) Service Rate, Drop Precedence tc class add dev agl0 parent 2:1 classid 2:20 htb rate 10Mbit ceil 156Mbit #tc qdisc add dev agl0 parent 2:40 red limit 60KB min 15KB max 45KB burst 29 avpkt 100 bandwidth 10Mbit probability 0.4 tc qdisc add dev agl0 parent 2:20 gred setup DPs 3 default 2 grio #tc qdisc change dev agl0 root gred limit <bytes> min <bytes> max <bytes> burst <packets> bandwidth 156Mbit \ # DP <vq> probability <number> prio <number> tc qdisc change dev agl0 parent 2:20 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 0 probability 0.01 prio 2 tc qdisc change dev agl0 parent 2:20 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 1 probability 0.01 prio 3 tc qdisc change dev agl0 parent 2:20 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 2 probability 0.01 prio 4 tc filter add dev agl0 parent 2:0 protocol ip prio 6 handle 0x10 tcindex mask 0x39 classid 2:20 pass_on # 12 -- AF Class 2 tc filter add dev agl0 parent 2:1 protocol ip prio 1 handle 2 tcindex classid 2:20 echo "After AF Class 2 2:20" # - AF Class 3 (2:50) Service Rate, Drop Precedence tc class add dev agl0 parent 2:1 classid 2:30 htb rate 10Mbit ceil 156Mbit #tc qdisc add dev agl0 parent 2:50 red limit 60KB min 15KB max 45KB burst 29 avpkt 100 bandwidth 10Mbit probability 0.4 tc qdisc add dev agl0 parent 2:30 gred setup DPs 3 default 2 grio #tc qdisc change dev agl0 root gred limit <bytes> min <bytes> max <bytes> burst <packets> bandwidth 156Mbit \ # DP <vq> probability <number> prio <number> tc qdisc change dev agl0 parent 2:30 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 0 probability 0.01 prio 2 tc qdisc change dev agl0 parent 2:30 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 1 probability 0.01 prio 3 tc qdisc change dev agl0 parent 2:30 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 2 probability 0.01 prio 4 tc filter add dev agl0 parent 2:0 protocol ip prio 6 handle 0x18 tcindex mask 0x39 classid 2:30 pass_on # 13 -- AF Class 3 tc filter add dev agl0 parent 2:1 protocol ip prio 1 handle 3 tcindex classid 2:30 echo "After Class 3 2:30" # - AF Class 4 Service Rate, Drop Precedence tc class add dev agl0 parent 2:1 classid 2:40 htb rate 10Mbit ceil 156Mbit tc qdisc add dev agl0 parent 2:40 gred setup DPs 3 default 2 grio echo "After AF Class 4 qdisc add parent 2:40" tc qdisc change dev agl0 parent 2:40 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 0 probability 0.01 prio 2 echo "After AF 4 qdisc change DP 0 parent 2:40" tc qdisc change dev agl0 parent 2:40 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 1 probability 0.01 prio 3 tc qdisc change dev agl0 parent 2:40 gred limit 60KB min 15KB max 45KB burst 121 avpkt 128 bandwidth 156Mbit \ DP 2 probability 0.01 prio 4 echo "Before AF Class 4 filter parent 2:1" tc filter add dev agl0 parent 2:1 protocol ip prio 1 handle 4 tcindex classid 2:40 echo "After AF Class 4" # - BE Class (2:60) Best Effort, no Drop Precedence #### tc class add dev agl0 parent 2:1 classid 2:60 htb rate 5Mbit ceil 10Mbit #### tc qdisc add dev agl0 parent 2:60 red limit 60KB min 15KB max 45KB burst 20 avpkt 1000 bandwidth 10Mbit probability 0.4 # Set filter to lower priority (8) since this is the default action #### tc filter add dev agl0 parent 2:0 protocol ip prio 2 handle 0 tcindex mask 0 classid 2:60 pass_on tc filter add dev agl0 parent 2:0 protocol ip prio 1 handle 0 tcindex classid 2:50 tc class add dev agl0 parent 2:1 classid 2:50 htb rate 10Mbit ceil 156Mbit tc qdisc add dev agl0 parent 2:50 pfifo limit 50 # Set filter to lower priority (8) since this is the default action ### tc filter add dev agl0 parent 2:0 protocol ip prio 1 handle 0 tcindex mask 0 classid 2:50 pass_on
