Table Of Contents
Feature DescriptionPhysical
Service adapter—Installs in port adapter slot on Cisco 7200 or 7100 Series routers
Service module—Installs in the service module slot on Cisco 7100 Series routers
Platform support
Cisco 7200 Series with NPE 400, 300, or 225
Cisco 7100 Series
Throughput1
Up to 145 Mbps using 3DES
Number of IPsec protected tunnels2
Up to 5000 on Cisco 7200 Series
Up to 3000 on Cisco 7100 Series
Hardware-based encryption
Data protection: IPsec DES and 3DES
Authentication: RSA and Diffie-Hellman
Data integrity: SHA-1 and Message Digest 5 (MD5)
VPN tunneling
IPsec tunnel mode; generic routing encapsulation (GRE) and Layer 2 Tunneling Protocol (L2TP) protected by IPsec
Hardware-based compression
Layer 3 IPPCP LZS
LAN/WAN interface selection
VAM works with most Cisco 7200 VXR-compatible port adapters
Minimum Cisco IOS Software Release supported
12.1(9)E
Standards supported
IPsec/IKE: RFCs 2401-2411, 2451
IPPCP: RFC 2393, 2395
1 As measured with IPSec 3DES HMAC-SHA1 on 1400 byte packets.2 Number of tunnels supported varies based on the total system memory installed.
Ordering Information—Cisco 7200 and 7100 Software Support
Data Sheet
VPN Acceleration Module
for Cisco 7200 and 7100
Series RoutersOverview
The VPN Acceleration Module (VAM) for Cisco 7200 and 7100 Series routers provides high-performance, hardware-assisted encryption, key generation, and compression services suitable for site-to-site virtual private network (VPN) applications. As an integral component of the Cisco Systems SAFE blueprint for security, the VAM provides encryption scalability while working seamlessly with critical site-to-site VPN software services, such as support for routing, quality of service (QoS), multicast and multiprotocol traffic across the VPN, as well as integrating firewall, intrusion detection, and service level validation. This combination of features delivers a best-in-class solution that accommodates the most diverse site-to-site VPN environments. In addition, the VAM provides hardware-assisted compression services where bandwidth conservation may lower network connection costs. These features, combined with VAM support for the broad set of LAN/WAN media and full Layer 3 routing services, ensure the smooth integration of encryption technology into virtually any enterprise or service provider network environment.
Figure 1 VAM Service Adapter for Cisco 7200 and 7100 Series Routers
Figure 2 VAM Service Module for Cisco 7100 Series. It Plugs into the Service Module Slot.
Features at a Glance
Feature DescriptionPhysical
Service adapter—Installs in port adapter slot on Cisco 7200 or 7100 Series routers
Service module—Installs in the service module slot on Cisco 7100 Series routers
Platform support
Cisco 7200 Series with NPE 400, 300, or 225
Cisco 7100 Series
Throughput1
Up to 145 Mbps using 3DES
Number of IPsec protected tunnels2
Up to 5000 on Cisco 7200 Series
Up to 3000 on Cisco 7100 Series
Hardware-based encryption
Data protection: IPsec DES and 3DES
Authentication: RSA and Diffie-Hellman
Data integrity: SHA-1 and Message Digest 5 (MD5)
VPN tunneling
IPsec tunnel mode; generic routing encapsulation (GRE) and Layer 2 Tunneling Protocol (L2TP) protected by IPsec
Hardware-based compression
Layer 3 IPPCP LZS
LAN/WAN interface selection
VAM works with most Cisco 7200 VXR-compatible port adapters
Minimum Cisco IOS Software Release supported
12.1(9)E
Standards supported
IPsec/IKE: RFCs 2401-2411, 2451
IPPCP: RFC 2393, 2395
1 As measured with IPSec 3DES HMAC-SHA1 on 1400 byte packets.2 Number of tunnels supported varies based on the total system memory installed.
The VAM supports Data Encryption Standard (DES) or Triple DES (3DES) IPsec encryption at greater than full-duplex DS-3 line rate (up to 145 Mbps) for site-to-site VPNs such as intranets and extranets. Moreover, it supports up to 5000 encrypted tunnels for mixed VPN environments that have both site-to-site and remote access VPN requirements. The VAM also integrates hardware-assisted RSA and IPPCP Layer 3 compression. Accelerating RSA processing speeds tunnel setup and creation time improving overall VPN initialization. And in those environments where bandwidth is costly, the VAM provides hardware-based IP Payload Compression Protocol (IPPCP) Lempel-Ziv-Stac (LZS) processing to compress network traffic before it is encrypted and sent over pay-per-byte WAN connections.
The VAM coprocessor architecture offloads all VPN processor-intensive functions from the main route processor, minimizing impact on system resources, thus delivering increased tunneling, encryption, and compression scalability for the most demanding VPN deployments.
Features and Benefits
Ordering Information—Cisco 7200 and 7100 Software Support
To enable either 56-bit DES or 168-bit 3DES, select the appropriate software image. VAM support is available in Cisco IOS® Software Release 12.1E images beginning with Software Release 12.1(9)E.
Export Regulations
DES and 3DES software for the VAM is controlled by U.S. export regulations on encryption products. The module itself is not controlled. U.S. regulations require the recording of names and addresses of recipients of DES and 3DES software. For more details, see
http://www.cisco.com/wwl/export/crypto/.
Part Number DescriptionSA-VAM
VPN Acceleration Module (VAM) for Cisco 7200 and 7100 Series
SM-VAM
VPN Acceleration Module (VAM) for Cisco 7100 Series