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Old 12-11-2003, 11:03 AM   #1
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connection speed's, what do I need to check ?


recently, I've been meddling with distro's. I've just re-installed mandrake 9.1, and searches of net seem to take longer.

I've been to the adslguide and checked out their speed test. My service is a "half a meg" adsl and the speed test reports this:

Downstream 449 Kbps (56.1 KB/sec) 484 Kbps (inc. overheads)
Upstream 157 Kbps (19.6 KB/sec) 169 Kbps (inc. overheads)

which as far as I can tell, is reasonably good, given the time of day.

In searching LQ, I have checked out various suggestions, like :

[root@thepc john]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:09:5B:07:3E:9D
inet addr: Bcast: Mask:
RX packets:54728 errors:0 dropped:0 overruns:0 frame:0
TX packets:40925 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:71512848 (68.1 Mb) TX bytes:4286951 (4.0 Mb)
Interrupt:17 Base address:0x6000

lo Link encap:Local Loopback
inet addr: Mask:
RX packets:1926 errors:0 dropped:0 overruns:0 frame:0
TX packets:1926 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:126860 (123.8 Kb) TX bytes:126860 (123.8 Kb)

As you can see, there's not error's showing at eth0 (not that I'd know what to do, if there where ), and the part that I don't understand at all is where is says Interrupt:17 Base address:0x6000 - Is this anything to be concerned over ?

I've also tried

[root@thepc john]# ip route dev eth0 scope link dev lo scope link
default via dev eth0

And as far as I can tell, that's OK, so if I ping my router I get this

[root@thepc john]# ping
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=64 time=0.429 ms
64 bytes from icmp_seq=2 ttl=64 time=0.402 ms
64 bytes from icmp_seq=3 ttl=64 time=0.442 ms
64 bytes from icmp_seq=4 ttl=64 time=0.402 ms
64 bytes from icmp_seq=5 ttl=64 time=0.415 ms

I am presuming this is also OK, but again, I don't know.

So, if I check out firewall stuff (I normally use a hardware firewall, which hasn't had any changes, but as far as I can tell, it's ok, windows gets through it ok) I just get "command not found" for iptables and ipchains.

Would anyone know if my "figures" look OK, and is there anything else I can check ???



<edit> Just for info, when I first hit "submit" it wouldn't connect, then when I tried again, it took some 20 second's to get the connection moving ? </edit>

Last edited by bigjohn; 12-11-2003 at 11:05 AM.
Old 12-11-2003, 11:56 AM   #2
Registered: Feb 2003
Location: San Antonio
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Which browser? If Mozilla, see if you have 'Smart Browsing-->Enable Internet Keywords' enabled.
'This feature is turned off by default because it takes precedence over other parsers and DNS behaviors that need more testing at this time. '

Could be causing the extra DNS work. If Opera, make sure Synchronous DNS is off under Network. Have seen this really slow searches down for people. Don't know what it does.

Old 12-11-2003, 12:11 PM   #3
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How is your dns set up? Does the router/modem autofind your dns addresses, or can you put them in manually? Or do you bypass the router for your dns? If possible, I would suggest the latter.

Last edited by carlywarly; 12-11-2003 at 12:19 PM.
Old 12-12-2003, 02:04 AM   #4
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Well, I've checked the Synchronous DNS thing in opera suggested by Rolled Oat, and I'm not sure exactly what carlywarly is refering to,

I've just got the connection set up straight to the router/modem with the LAN address. The only reference that I can think of for a DNS is that I put my provider's IP address in for DNA address in the LAN config - I don't know if that qualifies as autofind or manual input.

Perhaps you could expand carlywarly, cos I just need make sure that there's nothing wrong with my connection i.e. that I haven't got something set up/configured incorrectly, then I can start moaning.

There's also the possibility that it could be an external problem, because according to something I heard on the radio, either BT have cocked up, or someones dug up and damaged part of the infrastructure in the Reading area, though they never said the duration of the repair ?? and that this affects London/South East, and yes you've guessed it, that's me.



Last edited by bigjohn; 12-12-2003 at 11:12 AM.


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