Showing results for 
Search instead for 
Did you mean: 

a few questions..

Is a 3750 sw capable of handling full routing tables and what can you recommend in a small mutihomed BGP router or switch capable of handling full routing tables?


Everyone's tags (1)

a few questions..

Hello there,

Well the IOS on the 3750 is capable of supporting BGP. But the 3750 TCAM surly cannot handle a full routing table of the internet since its nearly about 500K entries now , One solution is to ask your provider to advertise just  the default route to the switches. I do not think there will be any performance issue running such type of setup on the 3750.

But if you need the full internet routing table from both providers check the 7201 Cisco router it has

1 GB of DRAM memory by default and you can upgrade it to 2 GB this will run perfectly for your deployment

Please refer the below link for more information

Hope it will help

Ahmed Sonba

VIP Expert

a few questions..


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.


No, a 3750 isn't really suitable for dealing with full Internet routing tables.

Dealing with managing multiple full Internet routing tables can slow a software router that otherwise can handle the link capacity.  In other words, you may need a more powerful device to deal with the Internet route table processing.

I've found, if you use OER/PfR, with default routes, you can obtain better performance than classical Internet BGP multi-homing while reducing performance requirements of the router.  Since you didn't mention the bandwidth you'll be supporting, unable to recommend a specific router.

Content for Community-Ad