Altiga VPN Concentrator Series (C50) versus Nortel Networks Contivity Extranet Switch 4000 and 4500 VPN Tunneling Competitive Evaluation

Sponsor: Altiga Networks, Inc.(Cisco)

All Reports Sponsored by this Vendor

Document Number: 199113

Publication Date: 7/1/1999

Page Count: 6

Abstract

Altiga Networks, Inc. commissioned The Tolly Group to measure the throughput across hundreds of VPN sessions supported by its VPN Concentrator Series (C50) versus Nortel Networks Contivity Extranet Switch 4000 and 4500. While it may be easier to support high throughput across a limited number of connections, networks face a challenge as the number of sessions increase. More sessions mean more processing overhead for maintenance. Excessive session loads could theoretically cripple the performance of some systems. Moreover, the extra processing required to produce Triple DES encryption could have a potentially catastrophic impact on IPSec performance. Users need a device that can support Triple DES without sacrificing performance. Altiga’s VPN Concentrator delivered between 50% and 120% better IPSec throughput than Nortel’s CES 4500, and up to 620% greater throughput than the CES 4000.