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New Member

Sizing a "Core" VRF Router

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.

7 REPLIES
VIP Super Bronze

Sizing a "Core" VRF Router

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

New Member

Sizing a "Core" VRF Router

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

Bronze

Sizing a "Core" VRF Router

Hi

Please check the below mentioned table for capacity planning.

WS-SUP32-GE-3BRSP720-3C-GERSP720-3CXL-GE
FIB/LFIB Table256K256K1M
MAC Table32k/64k90k/96k90k/96k
WS-SUP32-10GE-3BRSP720-3C-10GERSP720-3CXL-10GE
FIB/LFIB Table256K256K1M
mac address32k/64k90k/96k90k/96k

regards

Shivlu Jain

VIP Super Bronze

Sizing a "Core" VRF Router

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

New Member

Sizing a "Core" VRF Router

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

Bronze

Sizing a "Core" VRF Router

Hi

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

regards
Shivlu Jain    

New Member

Sizing a "Core" VRF Router

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

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