H3C MSR 30-16, Руководство по установке

Страница: 22 / 97

22 C
HAPTER
1: O
VERVIEW
MIM/DMIM/XMIM Cards MSR 30 series routers adopt modular design and support a wide range of optional
MIM/DMIM/XMIM cards that provide various interfaces, such as
synchronous/asynchronous serial interface, Ethernet interface, E1/T1 interface,
ISDN BRI/PRI interface, ADSL interface, audio interface, and Layer 2 switching
interface.
MIM cards, DMIM cards, and XMIM cards mainly differ in the following aspects:
A MIM card occupies one ordinary MIM slot, a DMIM card occupies two ordinary
(horizontal) MIM slots, and an XMIM card occupies one MIM slot but its size is
between a MIM card and a DMIM card. Currently, XMIM cards are used only on
the MSR 30-11. You need to remove the slide rails from the router before installing
a DMIM/XMIM card.
ESM
■
High-performance network data encryption ESM module (ESM-ANDE)
■
Standard network data encryption ESM module (ESM-SNDE)
ESM module supports IPSec and by using hardware encryption expedites IP packet
encryption. The use of hardware encryption/decryption and hashing operation
allows the router to encrypt packets with high performance and reliability.
The encryption card is optional. On a router installed with an encryption card, the
main control board functions to route IP packets and implement
encryption-enabled VPN, while the encryption card functions to encrypt packets.
VPM/VCPM Voice processing module (VPM) functions to implement the encryption/decryption,
EC and CNG of voices.
Voice co-processing module (VCPM) processes the voice data in combination with
VPM.
■
Voice co-processing module (RT-VCPM)
■
8-channel voice processing module (RT-VPM8)
■
16-channel voice processing module (RT-VPM16)
■
24-channel voice processing module (RT-VPM24)
■
32-channel voice processing module (RT-VPM32)
Table 15 Encryption card attributes
Attribute Description
Protocol IP sec
Hardware encryption algorithm Key algorithms: DES, 3DES, AES
Authentication algorithms:
HMAC-MD5-96, HMAC-SHA-1-96