Will this 10baseT be a bottleneck?

[RaySun2Be]

Okay, here's the scenario.

I am setting up a new T1 (full, not fractional) data line as part of a hosted VPN. I've got an internal 10/100 switched internal network. The only items running at 10baseT are the printers, everything else is running 100T full duplex.

I open the box today and find that the router they sent out to connect the network to the T1 is a Cisco 1605R with only 10baseT connection on the internal network side.

We will be synchronizing Outlook with Exchange at our headquarters, accessing network drives at headquarters, heavy Internet sufing and downloading (PDFs).

Will that 10baseT connection be a bottleneck?

It just seems funny to me that I've got a full T1 on one side, a 100T switched network on the other side, and a 10baseT connection between them.

If it is going to be a bottleneck, I need to get on the phone with my boss and have them send us out a router with a 100T connection.

They are already on my short list because the equipment they sent out (router and firewall and power management) are not rack mountable and it's going to mess up my server/communication racks. Grrrr.

Thanks!

 

[IJump]

If most of your traffic will be going through that router, then it could (will probably) cause problems.

I would get on the phone and try to get a different router. It will save you headaches in the future. It would be better to get everything set up once, rather than setting it up once now and then doing it again when you upgrade.

 

[RaySun2Be]

All of our external traffic will be going through that router. Internet, Exchange access/synchronization from our Outlook clients, Network drive access, application access and Citrix.

I suspected as much. Somehow I don't think that they really read through the site survey that I filled out (or our CIO ordered this configuration based on $$ savings not actual need)

 

[Confused]

If only VPN traffic through the T1 (1.544mbps) line will be going through that router, then 10mbps on the LAN side will be more than enough, as the most the other side of the router will do it 1.544mbps, way below the 10mbps of LAN!

We have the 1605 routers in the lab in my cisco room at college (which i will be playing with tomorrow hopefully...got CCNA final on Friday).

But i should think if only VPN traffic going through it at 1.544mbps, then shouldn't be anything to worry about! If it was a T3 on the other hand....


Confused

 

[TheOmegaCode]

You might find that a T1 isn't all that great... Well, depending on the number of users you have... The router shouldn't be a problem seeing as the T1 can only upload and download 1.5mbps... If you are going to be syncing Outlook and having 50 users hit the net at the same time (I assume while they surf they will be getting mail), well, then, you're download won't be all that much better than cable at home... The reason I like dedicated connections is the upload Cable or DSL has nothing over my DS3 at work...


<< We have the 1605 routers in the lab in my cisco room at college (which i will be playing with tomorrow hopefully...got CCNA final on Friday). >>

Yeah, I'm in stinko(cisco) right now... I have to do my stupid TCS...

 

[spidey07]

yeah, no bottleneck.

your bottleneck might be ethernet collisions, but I still don't think so. Biggest snafu I see is using a 1600 router. those piddly things run slower than dog turds (will probably have a hard time filling that t1) and have since been discontinued by cisco.

call your provider and demand a 1700.

 

[Garion]

You can usually push about 4Mb/s through a 10BaseT link, easily. With only two devices, you might be able to push that to about 5Mb/s.

Is that 1605 terminating the T1 AND running the VPN? If so... Good luck. 1605's are decent little routers, but you're going to be pushing it very hard. Be sure to keep track of the CPU/memory and make sure you're not spiking it too high.

- G

 

[spidey07]

Johnny on the spot as always, G.



<< CPU/memory and make sure you're not spiking it too high >>

 

[RaySun2Be]

Sounds like I may want to try and get them to replace the router, not because of bandwidth problems, but because of the router itself! :Q

Unlike our previous VPN provider, we are supposed to be able to get into the router ourselves, so I will make sure to monitor it.

Thanks for the quick response all!

 

[techshock]

The 10baseT eth0 int will be not be a bottleneck. Your bottleneck will most likely be the CPU/MEM of your router. That is really dependent though on the amount of users and type of services you will be running across that. Try upgrading to a 2500 or 2600 series router. I personaly would buy a 2600 series router and stick in a t1 wic card, everything should run fine. Before you do any of this though I would run some SNMP traps for a week and see what you come up with. Monitor mem/cpu/bandwidth. hope this helps some.



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