3845 and OC-3c

Answered Question
Oct 24th, 2009

I've tried looking around on Cisco's website, and I don't really see much info about what a 3845's max circuit capacity is.

Now, if I go off of some of the router performance sheets, the thing can do up to around 200 or 300Mbps. I've found where it has an OC-3 card available for it, but that's with ATM.

Just curious if anyone has ran an OC-3 through a 3845. All we have our 3845 doing is simple routing; no ACLs, no packet inspection, nothing. . .just routing.

TIA

I have this problem too.
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Correct Answer by royalblues about 7 years 1 month ago

3845 should work fine for running an OC3

The only thing you will need is to have the circuit presented to you on ethernet

Narayan

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Correct Answer
royalblues Sun, 10/25/2009 - 00:12

3845 should work fine for running an OC3

The only thing you will need is to have the circuit presented to you on ethernet

Narayan

Joseph W. Doherty Mon, 10/26/2009 - 04:46

Just a couple of points to keep in mind.

If the Ethernet handoff is FastEthernet, you'll only be able to utilize 2/3 bandwidth of the maximum possible OC3.

If the Ethernet handoff is Gigibit Ethernet, you may want to shape outbound which will add some to your CPU load. The 500 Kpps rated performance of the 3845, for minimum size packets, doesn't guarantee being able to sustain full OC3 bandwidth for such packets, and a shaper will further reduce it. Although for "normal" sized packets I doubt it will be an issue.

ahmad82pkn Thu, 04/19/2012 - 14:43

Hi, Sorry to bug in this form,

What i understand is i buy OC3 and ask provider to give me Gig or Fast Ethernet Handoff and i connect it simply on my rotuer Ethernet? that simple?

What if i want to install it in fiber form directly in router, then what card need to be purchased?

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