network traffic pulsing
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
linux-ubuntu-modules-2.6.22 (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
linux-ubuntu-modules-2.6.24 (Ubuntu) |
Won't Fix
|
Medium
|
Unassigned |
Bug Description
I am having problems with my network, i believe this is a bug. I have a laptop (ThinkPad T41) connected at 1000 Mb/s with a gigabit switch with all Cat6 to my desktop with hardware raid, with a gigabit network card in, connected at 1000 Mb/s. However when copying file i get a maximum of 6 -9 mb/s with it averaging around 3. This is really poor for a gigabit network.
Here is some more information about my network hardware and software:
Router
Hardware: Buffalo WHR-G54S
Firmware: Tomato 1.16
Switch: 3com Gigabit Switch 8
Cabling: All Cat6
Here is some information from some commands: (I am running Hardy, although i only upgraded yesterday to see if it would fix the problem, however it does not, i was experiencing the same problems with Gutsy.)
Changed in linux-ubuntu-modules-2.6.24: | |
assignee: | nobody → ubuntu-kernel-team |
importance: | Undecided → Medium |
status: | New → Triaged |
Changed in linux: | |
status: | Incomplete → Fix Released |
Here is some more information:
james@james- laptop: ~$ cat /etc/lsb-release RELEASE= 8.04 CODENAME= hardy DESCRIPTION= "Ubuntu hardy (development branch)"
DISTRIB_ID=Ubuntu
DISTRIB_
DISTRIB_
DISTRIB_
james@james- laptop: ~$ sudo lspci -vv ,D1-,D2- ,D3hot+ ,D3cold+ )
...
02:01.0 Ethernet controller: Intel Corporation 82540EP Gigabit Ethernet Controller (Mobile) (rev 03)
Subsystem: IBM PRO/1000 MT Mobile Connection
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (63750ns min), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 11
Region 0: Memory at c0220000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at c0200000 (32-bit, non-prefetchable) [size=64K]
Region 2: I/O ports at 8000 [size=64]
[virtual] Expansion ROM at c0240000 [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
...
james@james- laptop: ~$ sudo ethtool eth0
100baseT/ Half 100baseT/Full
1000baseT/ Full
100baseT/ Half 100baseT/Full
1000baseT/ Full
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: umbg
Wake-on: g
Current message level: 0x00000007 (7)
Link detected: yes
james@james- laptop: ~$ sudo lshw -C network
capabilities: pm bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000 driverversion= 7.3.20- k2-NAPI duplex=full firmware=N/A ip=192.168.1.113 latency=64 link=yes mingnt=255 module=e1000 multicast=yes port=twisted pair speed=1GB/s
*-network:0
description: Ethernet interface
product: 82540EP Gigabit Ethernet Controller (Mobile)
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:02:01.0
logical name: eth0
version: 03
serial: 00:0d:60:75:a5:00
size: 1GB/s
capacity: 1GB/s
width: 32 bits
clock: 66MHz
james@james- laptop: ~$ ifconfig
collisions: 0 txqueuelen:0
ath0 Link encap:Ethernet HWaddr 00:05:4e:48:69:ab
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:515808 errors:1 dropped:0 overruns:0 frame:0
TX packets:307201 errors:1 dropped:1 overruns:0 carrier:0
RX bytes:380336307 (362.7 MB) TX bytes:23458895 (22.3 MB)
eth0 Link encap:Ethernet HWaddr 00:0d:60:75:a5:00 60ff:fe75: a500/64 Scope:Link
inet addr:192.168.1.113 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20d:
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5998 errors:0 dropped:0 overruns:0 frame:0
...