search for: pfifo_fast

...a disk that had started showing problems. Now, i/o is about six times slower, my manager reports. After a fair bit of googling, I started looking at tc and ip, and found the following: from ip address show, first, on the old home directory server, eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast qlen 1000 then, on the new: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 I've tried tc qdisc add dev eth0 mq pfifo_fast and tc qdisc add dev eth0 pfifo_fast and neither works. I've googled, and seen something about you can't set something with t...

Thank you Andy! I did''t find why I could''t use the fw match in ingress. Now it works. Now I ran into another problem: When I try to add a pfifo_fast leaf qdisc dor htb classes it seg.-faults. Is pfifo_fast a special qdisc? I can succesfully add other type of qdiscs. I found that a similar problem was reported in february on a MIPS architecture. root@zefir:/usr/src# tc qdisc add dev eth0 root handle 1: htb default 10 root@zefir:/usr/src# tc cl...

Hello I''m doing some qdisc programming and I want to get/read the current ingress rate from a kernel module I was wondering what is the most convenient of achieving this My idea is to load the ingress qdisc and the police filter if necessary. and modify the source to export a structure or function so I can read the ingress rate. How does this sound? Is there a simpler way? With

...'m running a FC4 box with the stock 2.6.12 kernel and a FC2 box with a stock 2.6.9 kernel. I''m obviously using iproute2 and the patched tc. When I clear down the qdiscs with "tc qdisc del dev <DEV> root" I get the following in response to "tc qdisc": qdisc pfifo_fast 0: dev eth0 [Unknown qdisc, optlen=20] qdisc pfifo_fast 0: dev eth1 [Unknown qdisc, optlen=20] Unfortunately I cannot add pfifo_fast as a queue type (I was hoping to use one - see below). Have I missed something? Secondly, I was wondering if anyone could look over what I am trying to do and poi...

Hi! I was updated kernel from 2.4.22 to 2.4.23 and now tc tools can''t correctly determine default (pfifo_fast) qdisc on interface: # tc/tc qdisc ls dev ppp0 qdisc pfifo_fast 0: [Unknown qdisc, optlen=20] but, if I assign f.e. cbq qdisc for some device all show correctly: # tc/tc qdisc ls dev ppp1 qdisc tbf 8009: rate 32Kbit burst 10Kb lat 1.5s qdisc cbq 66: rate 10Mbit (bounded,isolated) prio no-transmi...

...sc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo 2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 100 link/ether 00:0f:1f:64:44:4e brd ff:ff:ff:ff:ff:ff 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:0f:1f:64:44:4f brd ff:ff:ff:ff:ff:ff inet 209.189.103.196/27 brd 209.189.103.223 scope global eth1 inet 209.189.103.202/27 brd 209.189.102.223 scope global secondary eth1:1 inet 209.189.103.208/27 brd 209.189.103.223 scope global secondary eth1:2 inet 209....

Hello, I use HTB on IMQ, and I would like to use pfifo_fast on my HTB leafs. Do I need to add a pfifo_fast qdisc to my HTB class, or this is the default one? I tryed to add and I got: RTNETLINK answers: Invalid argument It looks like pfifo_fast qdisc is not supported on HTB leaf... Any comments? Regards, Thomas _____________________________________...

...It also seems that what I''m trying to do is pretty straight-forward and common. Unfortunately, the HOWTO doesn''t seem to have a good answer for this simple problem, nor have I been able work out how to do this from wading through a lot of other documentation. It appears that the pfifo_fast qdisc has most of what I want - prioritizing by TOS header. Unfortunately, it is a "work conserving" queue, and won''t work with my cable modem unless I can artificially slow down the link. The tbf qdisc seems like it has the second part of what I want - an artificial upload cap...

Hi, I have following queries: - 1.How to see data exchanged at all the bands of pfifo_fast(command)? "tc -s qdisc ls dev eth0" only shows following output qdisc pfifo_fast 0: bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 Sent 71132584 bytes 312294 pkts (dropped 0, overlimits 0 requeues 0) Its only showing data exchanged in band 0. 2.I am using following command t...

Hello I am trying to attach pfifo_fast to af leaf htb class. But tc segmenetation faults. If I try the failing command throug strace, it shows me that the last thing tc tries to do just before the segmentation fault, is to try to open a file called "/usr/lib/tc/q_pfifo_fast.so". Of course i have tried to find worthfull inform...

...SIFY icmp -- anywhere anywhere CLASSIFY set 0:6 I find that if I attach a prio qdisc to the wrr class the pings come through fine (50-100 ms) even with a high bandwith application in the background. However, if I do not attach a qdisc to the wrr classes (leaving it with pfifo_fast), the ping times are 500-1000 ms or more. Any ideas why? I thought that a prio qdisc with default settings was equivalent to pfifo_fast. Thanks, - Andy _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWT...

I would like to use HTB''s prio parameter as the sole priority value for pfifo_fast. Is the TOS field in packets honored by an HTB class with the default pfifo_fast qdisc enqueued when coming from a child class with a prio parameter?! If yes, what''s the least expensive way (in terms of CPU cycles) of stripping all packets from the TOS field?! ___________________________...

Hi, I have a server and ten clients in a Gigabit network. The server has 125mbps network bandwidth. I want that the server has 40Mbps bandwidth reserved for client 1 (IP 192.168.5.141), and the rest bandwidth is for all other clients. My script looks like this (I use IFB for incoming traffic): #!/bin/bash export TC="/sbin/tc" $TC qdisc add dev ifb0 root handle 1: htb default 30

...itz ip a l 1: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:30:48:34:13:dc brd ff:ff:ff:ff:ff:ff inet6 fe80::230:48ff:fe34:13dc/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000 link/ether 00:30:48:34:13:dd brd ff:ff:ff:ff:ff:ff 4: br0: <BROA...

...te a while, no major problems encountered. Now I need to allow the server to access the lan of the client, and I can not figure out the routing. This is what I have after the tunnel is brought up: SERVER (A.A.A.A) Arx:~# ip addr ... 3: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:04:e2:09:6c:ea brd ff:ff:ff:ff:ff:ff inet 192.168.13.1/24 brd 192.168.13.255 scope global eth1 ... 5: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,10000> mtu 1500 qdisc pfifo_fast qlen 100 link/[65534] inet 10.0.13.1 peer 10.0.13.2/32 scope global tun0...

The HOWTO mentions 3 seperate bands for the simple pfifo_fast queue, how do I need to specify which band each packet needs to be in? Do I only need to set the correct TOS field or is there anything else I should do? Thanks. Tung

Hello, I read about the pfifo_fast has 3 bands, which allow you to prioritize traffic into these bands. I cannot find anything about these bands in the tc command reference (http://linux.bergqvist.se/tc/). I might be looking the wrong place - in which case, where should I look for help with this qdisc? The idea is to give "tim...

...9 mordor:~# ip addr show 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:50:da:4f:79:83 brd ff:ff:ff:ff:ff:ff inet6 fe80::250:daff:fe4f:7983/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:04:75:d5:3e:79 brd ff:ff:ff:ff:ff:ff ine...

...f the IPSec route and replace it with the gre tunnel. Linux box status: rx1000test:~# ip addre show 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:0a:dc:04:7d:dc brd ff:ff:ff:ff:ff:ff inet 192.168.1.97/28 brd 192.168.1.255 scope global eth1 4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000 link/ether 00:0a:dc:04:7d:dd brd ff:ff:ff:ff:ff:ff 6: w1adsl: <BROADCAST,MULTICAST,UP> mtu 1500...

...eration and your help. lnxfw:/home/joel# shorewall version 1.4.10d lnxfw:/home/joel# ip addr show 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:10:18:06:32:4f brd ff:ff:ff:ff:ff:ff inet 216.228.3.194/29 brd 216.228.3.255 scope global eth0 inet 216.228.3.195/29 brd 216.228.3.199 scope global secondary eth0 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:10:18:...