100 meg and no gigabit networks help please

Pea0n said:
Well... If you're desperate. A proper switch will to SPAN or port replication.

- Pea0n
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Some will even do 'many to one' port mirroring. If you really feel like making your NIC sh** it's self :)

I think the the EN X350 edge switches we use I can mirror up to 8 ports to one, and with a policy mirror those ports to CPU for logging as well.

One day I might try that if I get really bored. See if I can crash it :D
 
Skidilliplop said:
Some will even do 'many to one' port mirroring. If you really feel like making your NIC sh** it's self :)

I think the the EN X350 edge switches we use I can mirror up to 8 ports to one, and with a policy mirror those ports to CPU for logging as well.

One day I might try that if I get really bored. See if I can crash it :D
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IDD. R-SPAN is also handy, saves me sending a box per site to monitor a single port or whatever

- Pea0n
 
was told that they need to come and install a thicker cable haha!

ended up with free installation, free activation, and added extras to the house phone package all for £3 extra a month :D!
 
Meekal said:
was told that they need to come and install a thicker cable haha!

ended up with free installation, free activation, and added extras to the house phone package all for £3 extra a month :D!
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£3 extra a month from 50mb -> 100mb?

Hmm might have to phone up!
 
that's mines installed and running good after a few problems,, changed a few settings in the hub and all is well speeds are crazy 3 quid extra a month free installation
 
the 100 meg is not as good as 50 although the download speed double its hard trying to get a good a good line connection in ping test the results are shocking, getting lots of in game spikes and disconnects those hubs are ****e, So if you have a 50 meg moedem i would advise you to keep it
 
This is always the issue with high speed connections. Once you start playing with enterprise grade line speeds you start needing enterprise grade kit to keep up with it. Routing things and NATing + whatever else at 100meg WAN to LAN is a tall order for consumer kit.
 
whitecrook said:
I understand that to be the case but why? What is it about the consumer grade kit that cant handle the speed?
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With each and every packet there is a processing overhead as the router has to go through all incoming packets to check the destination port and compare that to its established connections list to see which local IP has a connection on that port, then check the ARP table for the MAC address for that local IP, then encapsulate the packet back into a frame and send it out the correct port to the end device.

That happens on everything comming into the router for a device on the LAN, and that doesn't include any sort of firewall/ACLs which add more overhead. When you get to 100 Mb internet and even 50 Mb internet routers simply don't have the processing power to keep up. For example my wrt54gl has a 200 MHz processor in it, and with tomato firmware on it the WAN to LAN throughput hits its limit around 30 to 35 Mb/s. Where as if you look at things such as Cisco hardware, not only are they designed with a bit more redundancy in mind due to the business environment they will be in, but also have more dedicated hardware for routing operations rather than performing those operations in software.

My new linksys e3000 can handle 100Mb without much issue though as its a high end consumer grade router. The problem starts to be with beyond 100Mb in that not only do you need a greater processing power router, but also a router with a gigabit WAN port, which is quite rare for consumer grade routers.
 
As Dist has said, it's built with cheap components that don't have the grunt to handle that kind of traffic.
It's not always throughput that causes an issue either. The processing overhead of NAT used to cause issues 'back in the day' with torrents because of the high number of peer to peer connections although the throughput wasn't that high the number of concurrent connections was large enough to cause some lower end routers to completely hang.

VPNs are another killer of puny routers. If you look at a load of enterprise firewalls you'll see the quoted LAN to WAN throughput is about double the quoted VPN throughput. Because of the extra load applied by encrypting and decrypting traffic.
 
Just Gigabit switch it from the VM gigabit router with a Gigabit card in the PC.

I would think you could max out a 100 megabit lan connection for sure as long as your router is connecting at full rate.
 
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