Sizing a "Core" VRF Router

[HEATH FREEL]

The scenario is that we will be "Wholesaling" Circuits from other carriers. All will map to a centralized Router running a VRF per customer. The question is, how do I know how to size the router appropriately?

How many VRF's can I have,

What would be the Max Throughput?

Thanks in advance.

[Reza Sharifi]

It all depends on the platform of the router you are getting.  For example, the sup-720-3C for the 6500 supports 1024 VRFs with the maximum number of supported IPv4 routes of 256000 for the entire device. So, if you have 10 vrfs on your device each vrf can have a max of 25600 routes.  It all varies platform by platform.

HTH

[HEATH FREEL]

Thanks Reza. Are you aware of any documents that list the Platforms and thier limits?

[shivjain]

Hi

Please check the below mentioned table for capacity planning.

	WS-SUP32-GE-3B	RSP720-3C-GE	RSP720-3CXL-GE
FIB/LFIB Table	256K	256K	1M
MAC Table	32k/64k	90k/96k	90k/96k
	WS-SUP32-10GE-3B	RSP720-3C-10GE	RSP720-3CXL-10GE
FIB/LFIB Table	256K	256K	1M
mac address	32k/64k	90k/96k	90k/96k

regards

Shivlu Jain