very slow routing throughput

[hzwaal]

I've been struggling with my WL500gx for some time now and can't get a decent throughput. I'm quite desperate and hope someone here can help me. I'll include as much information to this post as I can think of, so it'll be long (sorry). If anyone still needs more info, please ask.

Ok, here goes. My setup consists of two routers, an ADSL router (ZyXel 2602) and the Asus (WL500g Deluxe). Each of the routers has its own subnet, 192.168.1/24 for the ZyXel and 192.168.2/24 for the Asus. The Asus is in router mode (no firewall) and is connected to the ZyXel using its WAN port. A static route is defined in the ZyXel.

When I connect my laptop wired to the ZyXel I get a download speed of roughly 13mbps (tested with http://www.giganews.com/performance.html). When I wire the laptop to the Asus I only get around 1mbps. Wireless is even less, only 800kbps. I've tried different cables (both on the laptop and on the uplink to the ZyXel), without any effect. I've also tried running the Asus in AP mode and connected the ZyXel to one of the LAN ports; this gives some improvement, but nowhere near the 13mbps). CPU load is always 0 or near 0.

Here's the output of the route command:



$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.254 * 255.255.255.255 UH 0 0 0 vlan1
192.168.2.0 * 255.255.255.0 U 0 0 0 br0
192.168.1.0 * 255.255.255.0 U 0 0 0 vlan1
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default zeikcel 0.0.0.0 UG 0 0 0 vlan1


The firewall is turned off entirely:



$ iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere

Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere


There are quite a lof of frame errors on eth1:



$ ifconfig
br0 Link encap:Ethernet HWaddr 00:15:F2:3D:67:07
inet addr:192.168.2.254 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::215:f2ff:fe3d:6707/10 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:24218 errors:0 dropped:0 overruns:0 frame:0
TX packets:32913 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1374438 (1.3 MiB) TX bytes:44887927 (42.8 MiB)

eth0 Link encap:Ethernet HWaddr 00:15:F2:3D:67:07
inet6 addr: fe80::215:f2ff:fe3d:6707/10 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:39284 errors:0 dropped:0 overruns:0 frame:0
TX packets:52063 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:43954900 (41.9 MiB) TX bytes:17254788 (16.4 MiB)
Interrupt:4 Base address:0x1000

eth1 Link encap:Ethernet HWaddr 00:15:F2:3D:67:07
inet6 addr: fe80::215:f2ff:fe3d:6707/10 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:16995 errors:0 dropped:0 overruns:0 frame:15981
TX packets:41951 errors:12 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:1157297 (1.1 MiB) TX bytes:33365615 (31.8 MiB)
Interrupt:12 Base address:0x4000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MULTICAST MTU:16436 Metric:1
RX packets:45466 errors:0 dropped:0 overruns:0 frame:0
TX packets:45466 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3887603 (3.7 MiB) TX bytes:3887603 (3.7 MiB)

vlan0 Link encap:Ethernet HWaddr 00:15:F2:3D:67:07
inet6 addr: fe80::215:f2ff:fe3d:6707/10 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7183 errors:0 dropped:0 overruns:0 frame:0
TX packets:29386 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:479128 (467.8 KiB) TX bytes:14476506 (13.8 MiB)

vlan1 Link encap:Ethernet HWaddr 00:15:F2:3D:67:07
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::215:f2ff:fe3d:6707/10 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:32101 errors:0 dropped:0 overruns:0 frame:0
TX packets:22674 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:42768660 (40.7 MiB) TX bytes:2778064 (2.6 MiB)


I suspect these have to do with the WAN uplink, but I don't really know how to troubleshoot this. I've tried setting the WAN port to auto negotiation and 100mbps/full, both with the same results. I've also tried different LAN ports on the ZyXel, also no improvements.

Who has ideas on what to do next?

PS: I'm using the latest Oleg firmware: 1.9.2.7-10.

[hzwaal]

I made some progress, but then again, no progress whatsoever.

Yesterday I set out to use a network performance tool (netio) to determine all possible throughputs. (lan-lan, lan-wan, lan-wlan, wlan-wan). To my surprise I got quite decent figures:

lan-lan: 90 mbps
lan-wan: 24 mbps
lan-wlan: 8 mbps
wan-wlan: 8 mbps


I then retested my download speed and found the following:

internet-lan: 10 mbps
internet-wlan: 6 mbps


In the meantime I had not rebooted either of my routers, nor changed any cables or parameters. Still, the problem somehow disappeared (could it have been my speedtests?), until today...

My throughput is as lousy as before. I reran some of the speedtests, but this time got the same lousy results. So I'm back to square one, without a clue...

HELP!!!

:confused: aynone?

[hzwaal]

I think (hope ;)) I found my problem.

All along I suspected my WAN connection. In the nvram I found the following parameters:

wan_etherspeed_x = 100full
wan0_etherspeed_x = auto

I have no idea why it's there twice and what the wan0 is for, but decided to change the wan0 speed to 100full as well. Committed the nvram and rebooted the router and now it seems ok. But let's wait a few days if it doesn't lapse back into its previous bad behaviour.

I suspect something goes wrong with the auto-negotiation between both routers (I suspect my other router of this, because of previous similar problems with a auto-sensing hub).

I'm still curious of the wan and wan0 (ans also wl and wl0) difference. Does anyone here know this?

[jackal331]

I have exactly the same problem, I tried changing wan_etherspeed_x and wan0... but it didint help, can you tell me how you solved it ?