Warning message

  • Cisco Support Forums is in Read Only mode while the site is being migrated.
  • Cisco Support Forums is in Read Only mode while the site is being migrated.

Appropriate Router For a 100Mb WAN Circuit

Unanswered Question
May 7th, 2007
User Badges:

I'm trying to figure out what router would be able to route fast enough to handle a 100Mb WAN circuit. I was reading the 3800 series router blurb which says "Built for performance, the Cisco 3800 Series routers deliver multiple concurrent services up to wire-speed T3/E3 rates". I don't know if that means it can handle the equivalent of multiple 45Mb circuits or a total of 45Mb.

I'm told this circuit will be delivered to us as standard 100Mb Ethernet using an RJ-45 connection. I was wondering if it would be dumb to just use a switch seeing as they seem to most of the features of a router these days.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Manoj Wadhwa Mon, 05/07/2007 - 14:06
User Badges:

If you are using 100 MB as your WAN link, it would most probably be a fiber link rather than a standard RJ45 connection. We have 100 MB internet link on one of our routers. Its using a fiber connection and the router model used is Cisco 3825.


- Manoj

jasonrandolph Mon, 05/07/2007 - 14:35
User Badges:

What kind of hand-off are we talking? Direct Ethernet drop? If so, a L3 switch would be just fine unless you require features that only a router cold provide.

informationage Wed, 05/09/2007 - 10:23
User Badges:

I would suggest a 7200 VXR if you have the funds. We have a 100Mb ethernet drop with Cogent that absolutely killed some 3640s.

Wilson Samuel Wed, 05/09/2007 - 11:57
User Badges:
  • Gold, 750 points or more
  • Community Spotlight Award,

    Mobile User, July 2015


If you want to get any interface of upto 100 Mbps, you should you ahead with 7200 VXR with atleast NPE-G1 (which can take care of 100Mbps Interfaces and the processing speed required by the processor).

Furthermore, you may confirm the same by visiting the Data Sheets at

7200VXR Datasheet:-



NPE-G1 Data Sheet:-



Hope this helps,

please rate.

Kind Regards,

Wilson Samuel

paolo bevilacqua Wed, 05/09/2007 - 14:02
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    Founding Member

If there are not too many features, 100mbps can be handled well by an NPE-400 as well. NPE-G1 and G2 are really more for gigabits speeds.

Hope this helps, please rate post if it does!


This Discussion