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watts3000

join:2002-01-21

cisco routers that can handle 100 meg internet connection

Guys I was wondering what Cisco router can handle a 100 meg internet connection right now I use a Pfsense box that runs on and old p3 750 and this system will eat a 100 meg connection. I ask because I'm thinking about starting back playing around with cisco gear again?



phantasm11b
Premium
join:2007-11-02

So you want 100Mb of bandwidth on the WAN interface? If I recall, the 2900 series routers are right around 75Mbps of actual throughput. That's without any encryption or other overhead. If you need true 100Mb on the WAN, you may need to look at the 3900 series which are not cheap.



tubbynet
reminds me of the danse russe
Premium,MVM
join:2008-01-16
Chandler, AZ
kudos:1
reply to watts3000

the question becomes about services (nat, cbac, acl, zbfw, qos).
isr/g2 are software platforms -- a cpu has to handle all aspects of the forwarding of traffic. as you increase service load, you decrease throughput.

that being said -- a c3900 with an appropriately sized spe should do the trick.

q.
--
"...if I in my north room dance naked, grotesquely before my mirror waving my shirt round my head and singing softly to myself..."


watts3000

join:2002-01-21

I would mainly use it for nat my idea was just for a lab I'm not willing to spend thousands of dollars on this when an old p3 can handle my connection. I must ask when you guys have high bandwidth requirements on the wan do you only install Cisco or do you go with other vendors or even open source something like Pfsense.



tubbynet
reminds me of the danse russe
Premium,MVM
join:2008-01-16
Chandler, AZ
kudos:1

i work consulting for a large cisco partner. i hock cisco.
the isr/g2 provides a lot more flexibility than just routing. it creates a 'branch in a box' through sre modules, switching modules, voip, wireless controllers, etc.

q.
--
"...if I in my north room dance naked, grotesquely before my mirror waving my shirt round my head and singing softly to myself..."


HELLFIRE
Premium
join:2009-11-25
kudos:18
reply to watts3000

100Mbps WAN can be (proven) handled by the following hardware :
- ASA 5505
- 89x series router
- 180x or 181x series router
- 37xx series multi access router

If you can find it, you could also find and older PIX device with a P3 with the same clockspeed.
IIRC, 506e / 515 were rated for 100Mbps, and the 525 had a 600Mhz P3 chip inside.

As others have said, depends what SERVICES you want to run, NOW and in the FUTURE. Try this faq item for some numbers and discussion.

Regards


markysharkey
Premium
join:2012-12-20
united kingd
reply to watts3000

Are we talking 100Mb down a POTS line with VDSL, cable, ethernet to the premises, fibre to the premises or what?


watts3000

join:2002-01-21

Not fiber I was just speaking of being able to handle a 100 meg cable pipe.


cramer
Premium
join:2007-04-10
Raleigh, NC
kudos:9
reply to HELLFIRE

Routing speed, yes. A 1700 could do it, if it had 2 100M interfaces (hint: it doesn't) Once you turn on ANY services, all of those become a "well, maybe, plus or minus." The 5505 will come the closest, but it's a way underpowered PC (500MHz Geode) [the old geode based linux loadbalancer I used to make peaked about 48Mbps with NAT enabled, but I don't remember their clock rate.]

(NAT enabled) I have 18xx's; they can't do 100Mbps. I have 3745's; they won't do it either. A 2851 won't get anywhere near 100Mbps.

The 89x might, but I've not personally tested one. 38xx or 39xx might as well. At those speeds, you're approaching service provider class hardware (7200, 7300, 7400, etc.) The 7401 could do nearly gigabit NAT using the PXF engine -- actually tested; they're well beyond EoL now.

[For comparision, an OLD PIX 520 with a PIII-450 in it -- it's PII-350 died -- can do well over 100Mbps. 100Mbps it won't even notice. And people have put 1GHz processors in those things. 'tho you'd want a 515e if you went that route, so you run a somewhat more modern PIXOS (8.0 is the last major version built for it)]



battleop

join:2005-09-28
00000

I have 2811s in production with NAT and some simple QoS rules setup and a couple of vlans. Using iperf I can push 100Mbps through the router to one of the Vlans using multiple streams.

If we start doing lots of NAT rules and a large number of clients with phones and lots of PPS I often use a 7200 with an NPE400.
--
I do not, have not, and will not work for AT&T/Comcast/Verizon/Charter or similar sized company.


cramer
Premium
join:2007-04-10
Raleigh, NC
kudos:9

When we first had our DS3 installed, I converted the PIX (520) configuration to IOS for the the 2851. The configuration is simply not that complicated, and with 10 people in the office (no bittorrent!) the number of dynamic NAT translations is really low. I could not get the thing pass more than 28Mbps. NAT was simply KILLING IT. Putting it back like the integrator had it -- pure routing -- and I could flood the DS3 all day long... PIX load: 6%. (and that's with all of the internal office traffic flowing through it too.)

That router is currently sitting in the hallway, and nobody's told me I cannot take it over again. I think it's time put that thing in front of the Spirent!

(Without services, an 1811 can do line rate 100M -- ~20% CPU as I recall. I'll have to fetch my idle 1811 and test it as well.)


nosx

join:2004-12-27
00000
kudos:5
reply to battleop

I think the obvious point is being missed here.

How many packets per second do you want to do?

Bandwidth is a meaningless number for hardware selection criteria as it is not the length of the packet that consumes the CPU time, but the header of the packet.


aryoba
Premium,MVM
join:2002-08-22
kudos:4
reply to HELLFIRE

said by HELLFIRE:

100Mbps WAN can be (proven) handled by the following hardware :
- ASA 5505
- 89x series router
- 180x or 181x series router
- 37xx series multi access router

I would add Juniper SRX 100 model

Here is some documentation.
»www.juniper.net/us/en/local/pdf/···1-en.pdf

aryoba
Premium,MVM
join:2002-08-22
kudos:4
reply to watts3000

said by watts3000:

Not fiber I was just speaking of being able to handle a 100 meg cable pipe.

If this is for Cable Internet services, I don't think 3900 series is necessary since Cable Internet is not the same as the "true" dedicated pipe such as Unprotected Wave or OC-3 circuits. Lower model as others have mentioned should be just fine.


skj
Welcome to the far side of reality
Premium,Mod
join:2002-04-04
Gone South
kudos:1

(topic move) cisco routers that can handle 100 meg internet conn

Moderator Action
The post that was here, has been moved to a new topic .. »887 with Gigabit ports and Gigabit "internet"


HELLFIRE
Premium
join:2009-11-25
kudos:18
reply to watts3000

Re: cisco routers that can handle 100 meg internet connection

@cramer
I'm basing that recommendation of the 5505 and 180x and 181x off testing I've done myself and posted. So far
I haven't seen anyone dispute those findings, and I've already noted the limitations I ran into while doing the
testing.

I forget who did the 89x testing, but it was around the time DSL Reports came back up after the big outage last year.

I also think we had some 37xx testing done by some board members as well showing (near) wirespeed performance.

It all depends on what the OP wants, which so far sounds like 100Mbps thruput in a lab.

Idunno, my 00000010bits.

Regards


tdoran
Premium
join:2003-09-27
Ridge, NY
reply to watts3000

Cisco spec's a 3925 for 100 Mbps as minimum.

Full security, ASA 5512 might be good.