New office build out | router recommendation

Unanswered Question
Aug 6th, 2012

I'm currently helping build out a new office and trying to find the best router for the job. My main concern is ensuring it can handle the WAN line(s) we have coming in. When I looked at the 2921 series it seems to have a throughput max of 75Mbps and with our lines totalling 800Mbps I'm wondering how 'big' of a router we'll need.


Here's some of the details that should give a rough idea of our needs. Our requirements are pretty basic at the moment but we would like to start to build our a reliable network infra as we're quiclkly expanding the business (20 -> 60 employees in 6mo thus far)


300Mbps 1:1 - BT Fibre

100Mbps 1:1 - Virgin


100 person max office size

2-3 VPNs into datacentre's

eventual deployment of our own VoIP network (currently managed by buildings VoIP)

I have this problem too.
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Marwan ALshawi Mon, 08/06/2012 - 07:13

Hi Steve,

as per the below guide

3925 about 429M

3945 about 500M

however if you have big amount of encrypted traffic this calculation might differ

http://www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf

another option you cloud consider is Cisco ASR1000 serise routers

hope this help

larsen161 Mon, 08/06/2012 - 08:19

Thanks for the information. This confirms some suggestions by a few service providers I've managed to get in touch with today. Another option we saw was the 7301 despite it being EOL'd. The ASR1001 is a bit above our initial budget and doubtful I can make the case for substantial increase in costs.

Joseph W. Doherty Mon, 08/06/2012 - 09:40

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Attachment has good performance information for the current ISRs.

If you're going to have WAN Ethernet handoffs, L3 switch might be an option.

PS:

BTW, the 7301 you mention is 1 Mpps (and a 7201 is 2 Mpps).

Marwan ALshawi Tue, 08/07/2012 - 02:38

nice doco Joseph 5+

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Posted August 6, 2012 at 1:47 AM
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