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

[Reza Sharifi]

No, unfortunately not.  Cisco has just too many different platforms.  You would have to read the data sheet for each platform you are installing.  Look at the data sheet for 6500, 7600, 7200, ASR series routers.

HTH

[HEATH FREEL]

I was looking more for an overview of all supported Models. ISR G2 - 2900's 3900's, ASR1000, as well as the 6500/7200.

[shivjain]

Hi

Please go with the datasheet of each product. That will help you to take the decision.

regards
Shivlu Jain    

[HEATH FREEL]

AHHH - finnally found what I was looking for.. The data sheets were of no help.

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6557/prod_white_paper0900aecd8051fbdc.html

Recommended Maximum Aggregate Throughput

Recommended Maximum Number of VRFs

Recommended Max VRF Routes (Across all VRFs)

Cisco 7200 Series

300 Mbps (2 OC-3)

1,000

150,000

Cisco 3900 Series

Up to 350 Mbps

75

150,000

Cisco 3845 Series

45 Mbps (1 T3/E3)

25

50,000

Cisco 3825 Series

16 Mbps (8 T1/E1)

25

50,000

Cisco 3745 Series

16 Mbps (8 T1/E1)

15

20,000

Cisco 3725 Series

8 Mbps (4 T1/E1)

15

20,000

Cisco 2900 Series

24 Mbps

45

60,000

Cisco 2800 Series

8 Mbps (4 T1/E1)

15

20,000

Cisco 2691

8 Mbps (4 T1/E1)

10

20,000

Cisco 1900 Series

6 Mbps

15

30,000

Cisco 1841

2 Mbps (1 T1/E1)

5

10,000

Cisco 2600XM Series

2 Mbps (1 T1/E1)

5 (No MPLS)

10,000

Cisco 1800 Fixed Series

2 Mbps (1 T1/E1)

5 (No MPLS)

10,000

Cisco 1700 Series

2 Mbps (1 T1/E1)

5 (No MPLS)

10,000

Cisco 890 Series

2 Mbps (1 T1/E1)

5 (No MPLS)

10,000

Cisco 880 Series

2 Mbps (1 T1/E1)

2 (No MPLS)

10,000

Cisco 870 Series

2 Mbps (1 T1/E1)

2 (No MPLS)

10,000