Nortel Networks 2750 manual VPN Router Security Accelerator

82 Appendix A Technical specifications

•1000BASE-T (1000 MT) Ethernet interface card

•1000BASE-SX Ethernet interface card

•56/64K CSU/DSU WAN interface card

•ADSL WAN interface card

•ISDN BRI interface card

•T1 CSU/DSU WAN interface card (full-height card)

•T1/E1 CSU/DSU WAN interface card (half-height card)

•Quad T1/E1 CSU/DSU WAN interface card

•V.90 modem interface card

•Single V.35/X.21 WAN interface card

•HSSI WAN interface card

This section provides information about the option cards, including the connector and the cable pinouts for each supported network interface card. For more information about the restrictions on the option cards see Table 16 on page 68.

VPN Router Security Accelerator

Nortel supports the VPN Router Security Accelerator option card that performs bulk encryption and compression algorithms for IPsec tunnel traffic.

Figure 30 shows the VPN Router Security Accelerator card.

Figure 30 VPN Router Security Accelerator card

The VPN Router Security Accelerator card uses a single Hifn 7854 chip for encryption and compression and has 64 MB of onboard RAM. It supports Advanced Encryption Standard (AES)-128 cryptography with SHA-1 authentication and triple Data Encryption Standard (DES) cryptography with either Message Digest 5 Algorithm (MD5) or Secure Hash Algorithm (SHA)-1 authentication.

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