[phuzi0n]

What build are you using?

[Marla]

[redhawk0]

vegas is enabled by default...I haven't seen any issues since it was implemented by BS...I am currently running 12360 std build.

go to

/proc/sys/net/ipv4


cat tcp_westwood
0
cat tcp_vegas_alpha
3
cat tcp_vegas_beta
3
cat tcp_vegas_cong_avoid
1
cat tcp_vegas_gamma
2

This indicates that the tcp_vegas is active...and it has been working for me since BrainSlayer implemented it with the V24-Final.

redhawk

[Marla]

[redhawk0]

Marla...your unit is Atheros based...not Broadcom. I suggest you ask your question in the Atheros forum. They might be able to shed some light on this for you.

http://www.dd-wrt.com/phpBB2/viewforum.php?f=28

redhawk

[Marla]

[docbill]

Hmmm. Interesting. I notice if I use vegas and QOS at the same time, I get the same download speeds as just QOS. I've also noticed that with ftp set as Bulk, my download tests are always 71% of my maximum downlink speed.

However, based on what other people have been saying about QOS being able to prioritize even if it does not know my download speeds, I have set my downlink speed 40% higher than my maximum download speed without QOS. So now my download test give the same speeds with or without QOS enabled. That should give a fair comparison to find out if QOS really does anything useful when it is not throttling the total through put.

Bill

[bill1228]

Am thinking that tcp vegas has been removed from the build I am running. Running eko build 14826M dd-wrt v24-sp2big (7/18/10) on a Asus RT-N16. If I ls /proc/sys/net/ipv4 none of the tcp vegas files are there.
Thoughts?
--bill

[crashfly]

[Masterman]

TCP Vegas IS in the newest Eko build:

Linux version 2.6.24.111 (eko@dd-wrt) (gcc version 4.1.2) #535 Sun Jul 18 22:12:06 CEST 2010
CPU revision is: 00019740
Found a 8MB ST compatible serial flash
Determined physical RAM map:
memory: 02000000 @ 00000000 (usable)
On node 0 totalpages: 8192
Normal zone: 64 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 8128 pages, LIFO batch:0
Movable zone: 0 pages used for memmap
Built 1 zonelists in Zone order. Total pages: 8128
Kernel command line: console=ttyS0,115200 root=1f02 rootfstype=squashfs noinitrd
Primary instruction cache 32kB, physically tagged, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, linesize 32 bytes.
Synthesized TLB refill handler (20 instructions).
Synthesized TLB load handler fastpath (32 instructions).
Synthesized TLB store handler fastpath (32 instructions).
Synthesized TLB modify handler fastpath (31 instructions).
PID hash table entries: 128 (order: 7, 512 bytes)
CPU: BCM4716 rev 1 at 354 MHz
Using 177.000 MHz high precision timer.
console [ttyS0] enabled
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 27344k/32768k available (3144k kernel code, 5424k reserved, 1479k data, 144k init, 0k highmem)
Calibrating delay loop... 176.53 BogoMIPS (lpj=882688)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
Generic PHY: Registered new driver
PCI: Using membase 8000000
PCI: Disabled
PCI: Fixing up bus 0
PCI: Fixing up bus 1
NET: Registered protocol family 2
Time: MIPS clocksource has been installed.
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
squashfs: version 3.0 (2006/03/15) Phillip Lougher
io scheduler noop registered
io scheduler deadline registered (default)
HDLC line discipline: version $Revision: 4.8 $, maxframe=4096
N_HDLC line discipline registered.
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
serial8250: ttyS0 at MMIO 0x0 (irq = is a 16550A
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
PPP BSD Compression module registered
MPPE/MPPC encryption/compression module registered
NET: Registered protocol family 24
PPPoL2TP kernel driver, V1.0
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
PCI: Setting latency timer of device 0000:00:02.0 to 64
bcm_robo_attach: Using external reset in gpio pin 10
bcm_robo_attach: devid read succesfully via mii: 0x3115
bcm_robo_attach: mii access to switch works
bcm_robo_attach: devid: 0x3115
eth0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 5.10.56.27
PCI: Setting latency timer of device 0000:00:01.0 to 64
pflash: found no supported devices
bootloader size: 262144
sflash: Filesystem type: squashfs, size=0x5b02bc
partition size = 5975040
Creating 5 MTD partitions on "sflash":
0x00000000-0x00040000 : "cfe"
0x00040000-0x007f0000 : "linux"
0x0018d400-0x00740000 : "rootfs"
mtd: partition "rootfs" doesn't start on an erase block boundary -- force read-only
0x007f0000-0x00800000 : "nvram"
0x00740000-0x007f0000 : "ddwrt"
Broadcom Watchdog Timer: 0.07 initialized.
u32 classifier
Actions configured
Netfilter messages via NETLINK v0.30.
nf_conntrack version 0.5.0 (1024 buckets, 4096 max)
ctnetlink v0.93: registering with nfnetlink.
IPv4 over IPv4 tunneling driver
GRE over IPv4 tunneling driver
ip_tables: (C) 2000-2006 Netfilter Core Team
ClusterIP Version 0.8 loaded successfully
TCP bic registered
TCP cubic registered
TCP westwood registered
TCP highspeed registered
TCP hybla registered
TCP htcp registered
TCP vegas registered
TCP scalable registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Welcome to PF_RING 3.2.1
(C) 2004-06 L.Deri <deri@ntop.org>
NET: Registered protocol family 27
PF_RING: bucket length 128 bytes
PF_RING: ring slots 4096
PF_RING: sample rate 1 [1=no sampling]
PF_RING: capture TX No [RX only]
PF_RING: transparent mode Yes
PF_RING initialized correctly.
PF_RING: registered /proc/net/pf_ring/
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
decode 1f02
VFS: Mounted root (squashfs filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 144k freed
br0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature.
device br0 entered promiscuous mode
Algorithmics/MIPS FPU Emulator v1.5
device vlan1 entered promiscuous mode
device eth0 entered promiscuous mode
device eth1 entered promiscuous mode
br0: port 2(eth1) entering learning state
br0: port 1(vlan1) entering learning state
device br0 left promiscuous mode
device br0 entered promiscuous mode
device br0 left promiscuous mode
device br0 entered promiscuous mode
br0: topology change detected, propagating
br0: port 2(eth1) entering forwarding state
br0: topology change detected, propagating
br0: port 1(vlan1) entering forwarding state
device vlan2 entered promiscuous mode
device vlan2 left promiscuous mode
etherip: Ethernet over IPv4 tunneling driver
br0: port 2(eth1) entering disabled state
br0: port 1(vlan1) entering disabled state
device vlan1 left promiscuous mode
br0: port 1(vlan1) entering disabled state
device eth1 left promiscuous mode
br0: port 2(eth1) entering disabled state
br0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature.
device br0 entered promiscuous mode
device vlan1 entered promiscuous mode
device eth1 entered promiscuous mode
device vlan2 entered promiscuous mode
br0: port 3(vlan2) entering learning state
br0: port 2(eth1) entering learning state
br0: port 1(vlan1) entering learning state
device br0 left promiscuous mode
device br0 entered promiscuous mode
device br0 left promiscuous mode
device br0 entered promiscuous mode
br0: topology change detected, propagating
br0: port 3(vlan2) entering forwarding state
br0: topology change detected, propagating
br0: port 2(eth1) entering forwarding state
br0: topology change detected, propagating
br0: port 1(vlan1) entering forwarding state
root@DD-WRT:~#

[bill1228]

Thanks for the quick response.
Crashfly, am using eko's latest k26 firmware. Have been wondering if perhaps Brainslayer's latest might have it. I'll brobably load it up and see. Again using the k26 build as this is a Asus RT-N16 router.
Masterman, I saw tcp vegas registered in dmesg but the files for tcp vegas are not in the /proc/sys/net/ip4.
Is there a step that needs to be done to activate besides registration? While I can fumble my way around Linux I am far from an expert.
Is it as simple as using touch to create the files and then doing the echo commands given in this thread?
Again thanks for any insite you can give.
--bill

[crashfly]

Assuming that the K26 version has the capability, you can put the following commands (or variations there of) into your firewall script:

[bill1228]

[crashfly]

[Theliel]

Vegas its on by default, at least in BS builds. Im sure on eko builds too. You can check this:

Path to Modules:

ls /sys/module/ -la

drwxr-xr-x 3 root root 0 Jul 24 00:14 tcp_bic
drwxr-xr-x 3 root root 0 Jul 24 00:14 tcp_cubic
drwxr-xr-x 3 root root 0 Jul 24 00:14 tcp_htcp
drwxr-xr-x 3 root root 0 Jul 24 00:14 tcp_hybla
drwxr-xr-x 3 root root 0 Jul 24 00:14 tcp_vegas


cat /proc/sys/net/ipv4/tcp_allowed_congestion_control

vegas westwood reno


cat /proc/sys/net/ipv4/tcp_available_congestion_control

vegas westwood reno bic cubic highspeed hybla htcp scalable


cat /proc/sys/net/ipv4/tcp_congestion_control

vegas