Internet full routing tabble, router question

[laerciotobias]

Hi i need a router that could be abble to support internet full routing tabble,

The 3945E with the memory upgraded for 4 gigs could support the full routing table ?

Could you please let me know what is the models that cisco recommends to support such memory and process load, i´m thinking in the ASR series or a 73xx series.

Thanks you.

[stephen.stack · Accepted solution]

My last check a couple of years back was a single copy of full Internet routing table (about 300k prefixes) consumed nearly 250MB RAM

4GB would be plenty.

Regards

Stephen

==========================
http://www.rConfig.com

A free, open source network device configuration management tool, customizable to your needs!

Sent from Cisco Technical Support iPhone App

[eflordel · Accepted solution]

Hi There,

The minimum requirement for a Full BGP Internet Routing Table is 512MB. 4GB is plenty. I plan on doing the same on an ASR1002X.

Best,

Elmer

[laerciotobias]

Thanks all you guys from the repply

and sorry for the dalay to repply.

[Joseph W. Doherty]

Disclaimer

The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

Liability Disclaimer

In  no event shall Author be liable for any damages whatsoever (including,  without limitation, damages for loss of use, data or profit) arising out  of the use or inability to use the posting's information even if Author  has been advised of the possibility of such damage.

Posting

If you're pulling full Internet routing tables, don't forget you get a route information from each BGP peer.  Using the (old) soft copy feature will also consume additional RAM.

On the other hand, if your IOS supports OER/PfR, you have the option of just using a default route to each peer and allowing OER/PfR to load balance and/or pick the better performing path (per prefix).  RAM requirements, then often become minimal but with better performance.