Hello, We are moving from a Cisco 7206 to a 7513, and I was wondering if we will be limited by bandwidth points on the 7513 (as we are with the 7206). From the sparse documentation I've found so far, it doesn't appear that this limitation exists in the 7513, correct? Off-list replies are welcomed. Thanks, = TC -- Tom Claydon, IT/ATM Network Engineer Dobson Telephone Company phone: (405) 391-8201 cell: (405) 834-0341
On Thu, 13 Jan 2005, Claydon, Tom wrote:
We are moving from a Cisco 7206 to a 7513, and I was wondering if we will be limited by bandwidth points on the 7513 (as we are with the 7206). From the sparse documentation I've found so far, it doesn't appear that this limitation exists in the 7513, correct?
This is really more a cisco-nsp type question. To answer, no, the 7500 doesn't have the bandwidth points issue the 7200s have. Each VIP has its own PCI bus(es) for PAs and then connects to the/a 1gbit cybus. 7500s have a whole new set of scaling issues. :) As long as you don't believe the performance numbers someone at cisco made up for the 7500 VIP datasheets, you'll be fine. ---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
On-List replies perhaps may be usefull.. Or could you post a summary of your findings? Regards, Noel Montales Claydon, Tom said:
Hello,
We are moving from a Cisco 7206 to a 7513, and I was wondering if we will be limited by bandwidth points on the 7513 (as we are with the 7206). From the sparse documentation I've found so far, it doesn't appear that this limitation exists in the 7513, correct?
Off-list replies are welcomed.
Noel, Tom, There are limitations on the 75xx's depending on the RSP/VIP setup you have. It's a distributed platform that does software based forwarding when running in dCEF mode. All packet are switched by the VIPs and never touch the RP. Therefore the switching capacity is a function of the speed of the VIPs and the features you have enabled in the packet path (ACL's, QOS, etc..). The short answer is there isn't a bandwidth concept like there is with the 72xx. However, you can overload the VIP with the right PA combination and features. The matrix of performance will depend on the features, ppps, and VIP type. There have been extensive discussions about this on cisco-nsp so if there are further questions I'd suggest we move it over there and I can add more. Thanks, Rodney On Thu, Jan 13, 2005 at 09:09:28PM -0500, Noel Montales wrote:
On-List replies perhaps may be usefull.. Or could you post a summary of your findings?
Regards, Noel Montales
Claydon, Tom said:
Hello,
We are moving from a Cisco 7206 to a 7513, and I was wondering if we will be limited by bandwidth points on the 7513 (as we are with the 7206). From the sparse documentation I've found so far, it doesn't appear that this limitation exists in the 7513, correct?
Off-list replies are welcomed.
participants (4)
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Claydon, Tom -
Jon Lewis -
Noel Montales -
Rodney Dunn