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New Member

Point to Point Fiber Connection

We have two locations 10 miles apart and need connectivity between them. A local provider can run a 30MB fiber connection between the 2 sites at a very reasonable cost. We would have to provide the routers however. I have worked with Cisco routers before with T1 channelized connections but am unsure how the the fiber would connect to a Cisco router in this scenerio. I need to know how such a connection to the routers at each end would take place, specifically what WIC or whatever else would be needed. I currently have a 1760 router at each site but realize that they are old and I m,ay have to replace them with newer models.

Thanks to anyone that can help.

TJG

Everyone's tags (4)
11 REPLIES
New Member

Point to Point Fiber Connection

What sort of handoff is the provider giving you?

-Jason

New Member

Point to Point Fiber Connection

Jason,

The handoff is Ethernet at each end.

TJG

Hall of Fame Super Gold

Point to Point Fiber Connection

You can start with a 1921 and install a EHWIC-1GE-SFP-CU if your ISP presents you with a fibre.

Re: Point to Point Fiber Connection

How about a layer 3switch?

Sent from Cisco Technical Support iPad App

New Member

Point to Point Fiber Connection

I agree, a layer 3 switch will work.  Do you have any other Cisco equipment besides the 1700 series routers?

New Member

Point to Point Fiber Connection

We have no other Cisco series routers. Are you implying that the 1700 would not work in this scenerio? It we were to go with L3 switches would the traffic have to be bridged from site to site? We currently have different subnets at each site.

Thanks,

TJG

New Member

Point to Point Fiber Connection

Does the 1760s have WICs that have fastethernet ports, or do they just have the default built in single fastethernet port?

New Member

Point to Point Fiber Connection

The 1760's have the default single FE port.  If I were to add a FE WIC would that suffice for the 30MB Fiber connection? What about the different subnet?

Thanks,

TJG

New Member

Point to Point Fiber Connection

Not having experience with the throughput of this particular router, I couldn't say how well it will perform under full load.  Is the provider handing off a layer 2 link, or is it layer 3?

Hall of Fame Super Gold

Re: Point to Point Fiber Connection

We have no other Cisco series routers. Are you implying that the 1700 would not work in this scenerio?

Depending on what specific 1700 you've got, this family of routers can push between 6.0 to 8.0 mbps of traffic.  The value is expressed in HALF duplex and without any encryption.

If you have a 1760 then this model can push up to 8.19 Mbps of traffic (HALF duplex, CEF enabled and NO encryption).

So if your ISP is giving you 30 Mbps bandwidth and you've got a router that can do 2 Mbps of traffic (FULL duplex, encryption and CEF enabled) then it's a waste of your money.

New Member

Point to Point Fiber Connection

Considering that this router is also end of life, I would recommend against using it in a production environment.  An 1800 series router would probably work well here, something like an 1811 should do it.  Sorry, I don't have any other advise at the moment.

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