H3c-technologies H3C MSR 30 Manual de usuario descargar pdf (Pagina 26)

MIM/DMIM Cards

MSR 30 routers adopt modular design and support a wide range of optional MIM/DMIM 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, mainly differ in the following aspects:

A MIM card occupies one ordinary MIM slot, while a DMIM card occupies two ordinary (horizontal)

MIM slots. You need to remove the slide rails from the router before installing a DMIM 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.

Table 16 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

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)

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H3c-technologies H3C MSR 30 Manual de usuario Pagina 26