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The GigE upgrade

06/17/09

  08:56:24 pm, by The Dreamer   , 630 words  
Categories: Networking

The GigE upgrade

On Monday before the rain, I had placed an order on Amazon.com. The large part of the order were the pieces to complete the upgrade to GigE.

The GigE project started when I replaced a 5-port switch that had a bad port. Which was causing me issues because it was either between wireless access point or wired connection for work laptop. Sure I could connect by wireless with the work laptop, but for transferring big files...wired is faster.

That upgrade made no improvement in speed (at least none that I'm aware of...I never did have cause to connect work laptop since that upgrade...so I don't know if the work laptop does GigE...but its a MacBook Pro, so it should, right?)

So, to complete things, I got a 2 more 5 port switches and an 8 port switch. Two of the switch hops are Linksys WRT54GS routers, and the far end is an 8-port 10/100 switch.

As I was plotting how to make the upgrade, it occurred to me that the 5 port switches aren't replacing the routers...so I'm going to need some patch cables. And, the other day I was thinking I needed to stock up on some, because I couldn't find any. Though I'm sure I had some pre-move that I probably haven't unpacked yet. As I was going around looking for cables...I came across some 7ft and 14ft cables, that I must've picked up the last time I was ordering parts (BuyExtras.com)....might be time to stock up again.

So I started the upgrade....first the living room router. I put the 5-port in place. Moved the cable that links router to the 16-port 10/100 switch up. Then ran cable from GigE switch to router. Moved other cable in router to GigE switch (the overhead Cat5 to where my main desktop is...and the first GigE switch.) Success, one port showing GigE link. The other two ports on the router go to TiVo's....they can stay....

I then moved on to moving stuff around at the other router. I first moved the one room cable that wasn't active to the GigE switch and connected GigE switch to that port. And, moved the other two room cables over. I also moved the wireless access point in this room onto the GigE switch (could've gone on the router...doesn't really matter). It was mainly so that it would be on the same UPS as my networking equipment...so some chance things would work in an extended outage. It would mainly be things that were already working before the outage, since DHCP server isn't on a long running UPS (yet). I checked for green light (to show GigE)....there weren't any....sad.... :`( Seems to mean that building wiring can't support the speed?

Oh wait...I think I was short one cable move at the living room router. Sure that its...the room jack is connected to 16-port switch. Get a longer cable (14')...and connect it up. Presto now two green lights (at switch in living room).

Last but not least....upgrade the 8-port switch. First moved wall jack to it and connection from 'lhaven'. Trying not to lose my IRC sessions. And, then move the rest. 2 Green lights. 'orac' is now 1000BaseT full duplex.

Before I was able to get about ~99Mbps with iperf between 'orac' and 'tardis'. Now with iperf...I'm finding I can get ~190Mbps going 'tardis'->'orac'. And, ~300Mbps going 'orac'->'tardis'. Part is likely that Windows isn't tuned for the speed. I did do the tweaking to maximum broadband speed.... Linux is probably just better by default. There might also be the hardware differences. 'tardis' is a P4-3.2GHz w/HT box and 'orac' is a Core 2 Quad 2.4GHz. 'tardis' is Windows XP and a pretty busy machine....while 'orac' spends most of its time just running boinc WUs on all 4 cores. Etc.

Now what am I going to do?

No feedback yet

Now instead of subjecting some poor random forum to a long rambling thought, I will try to consolidate those things into this blog where they can be more easily ignored profess to be collected thoughts from my mind.

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