Displaying 20 results from an estimated 9000 matches similar to: "pfifo_fast: right band?"
2007 Sep 19
0
How to see data exchanged at all the bands of pfifo_fast
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 to drop
2001 Mar 30
0
pfifo_fast with bands
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 "time-critical" sessions such as ssh, telnet etc.
HIGHEST
2002 Dec 08
0
TOS filed and pfifo_fast
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?!
2007 Jun 28
1
pfifo_fast priomap
Hi list,
I have a quick question about the priority mapping of tos bits. The manpage
of tc-prio shows a nice table with tos bits and the band they
are mapped to:
TOS Bits Means Linux Priority Band
------------------------------------------------------------
0x0 0 Normal Service 0 Best Effort 1
0x2 1 Minimize Monetary Cost 1 Filler
2003 Sep 16
1
rate limited pfifo_fast?
Hi,
I have a cable modem with a bandwidth capped upload rate. I''d like to
prioritize packets going outbound according to the TOS header of the IP
field. I''ve read through the LARTC Howto several times, and I think I have
a good feel for the information it it. It also seems that what I''m trying
to do is pretty straight-forward and common. Unfortunately, the HOWTO
2002 Sep 25
2
pfifo_fast dosnt work?
Hep
Trying to get pfifo to work. Setup :
|------|<--->eth1 (192.168.10.0/24)
eth0---| GW |<--->eth2 (192.168.11.0/24)
|------|<--->eth3 (192.168.12.0/24)
read all documentation :
http://lartc.org/howto/lartc.cookbook.interactive-prio.html
here is my TOS mangling rulse in iptables :
$IPTABLES -A PREROUTING -i eth1 -t mangle -s 192.168.10.0/24 -p tcp --dport
2005 Aug 13
1
pfifo_fast as leaf qdisc for htb classes
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
2002 Dec 20
0
Simple pfifo_fast question
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
_______________________________________________
LARTC mailing list /
2003 Dec 08
1
tc troubles with pfifo_fast qdisc on 2.4.23 kernel
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
2005 Jan 31
0
tc segmentation faults when trying to add pfifo_fast as leaf discipline on a HTB class
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 information around the
Internet, but haven''t found
2004 Apr 05
0
prio and pfifo_fast not working the same?
I have a machine running 2.4.25 w/ wrr, ebtables-brnf, iptables CLASSIFY
and esfq patches (not using esfq, though).
I have wrr set up, and within each class I want to prioritize ssh, web,
etc..., but right now I am testing with pings.
I have the following in my POSTROUTING mangle table:
CLASSIFY icmp -- anywhere anywhere CLASSIFY set 0:6
I find that if I attach a prio
2007 Nov 26
1
prio qdisc broken?
Hello all,
I might make a fool out of me, but I think the prio qdisc doesn''t work as
advertised in any document I could lay my hands on.
The following tests and observations were made with Linux kernel 2.6.20.21.
This makes it up-to-date in the 2.6.20.x kernel family.
My problem was that the link quality reported by the olsr.org olsrd degraded
depending on the amount of payload
2007 Jul 04
1
infinite amount of data for HTB burst
Dear all,
I''d like to ask for help with HTB configuration (after
having read some manual pages, FAQs and forum posts).
Short version: is there a way to specify infinite burst for HTB?
(Infinite amount of data to use the "ceil" rate.)
Long version:
I have the following small topology:
cable modem (uplink to ISB)
|
<ethernet>
2006 May 25
0
Sub-band filtering
hi,
I have a small and quick question.
When speex divide the UWB speech signal into High and low bands, JMV said to me in HA that :
"For ultra-wideband (0-16 kHz, 32 kHz sampling), I first split the band into wideband (0-8 kHz) and "very high band" (8-16 kHz). Then, the wideband itself is split into low (0-4 kHz) and high (4-8 kHz) band. So there's a total of 3 bands
2005 Jul 12
0
Teql and NetEm can''t work together
Thanks in advance!
Summary: when I load netem and teql together, teql doesn''t work
correctly. (If I load teql only, everything is fine)
I loaded both netem and teql. Netem is associated with eth0, and teql is
associated with both eth0 and eth1. But traffic only goes out of eth1.
Attached are the commands that I used to configure teql and netem (on
machine 1), and commands to
2005 Nov 11
8
Pfifo_fast "Unknown qdisc" and asking for basic design advice
Hi all,
I''ve done a search through the archives but I can''t find a
cause/solution to this.
I''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
2005 Oct 24
1
locfit: simultaneous confidence band
I'm using the package 'locfit' for nonparametric regression. This package
contains the function 'scb' to compute simultaneous confidence bands.
The variance of the data is unknown. Up to now I compute a fit with
'locfit'. Afterwards an estimate of the residual variance is computed by the
function 'rv'. The weights in the 'scb'-function are set 1/sigma^2
2009 Jan 14
0
[PATCH] Pitch now quantised at the band level, got rid of all the VQ code.
---
libcelt/Makefile.am | 6 +-
libcelt/bands.c | 26 +++++++++-
libcelt/bands.h | 2 +-
libcelt/celt.c | 23 +++-----
libcelt/pgain_table.h | 133 -------------------------------------------------
libcelt/quant_pitch.c | 117 -------------------------------------------
libcelt/quant_pitch.h | 44 ----------------
7 files changed, 37 insertions(+), 314
2006 Jul 26
2
static linking of /usr/sbin/tc?
Hello,
I am trying to revive an old linux server installation, which still has
libc5. Sadly, most current software does not compile anymore on this
system, including the tc utility. As with other tools (net-tools,
coreutils, procps etc.) I tried to compile and statically link
(LDFLAGS=-static) on a more recent linux machine and copy the static
binaries over to the old machine.
But no luck
2014 Feb 26
1
Dual Band Wireless
Hi,
Because of heavy interference in the 2.5GHz range in my neighbourhood, I
want to switch to wireless dual band (5GHZ) and wireless ac.
Do you have any suggestions for USB wireless adapters for CentOS 6.5
that work with dual band and ac?
Also, if you have any suggestions on wireless routers for these bands I
would like to hear about them.
Thank you,
Joe