Esm Module; Vpm And Vcpm Module - H3C MSR 20-20 Installation Manual

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HAPTER VERVIEW

ESM Module

VPM and VCPM Module

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Currently, MSR 20 series routers do not support PoE and regard SIC-4FSW-POE
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and DSIC-9FSW-POE (if used) as only ordinary Layer 2 switching modules.
High-performance network data encryption ESM module (ESM-ANDE)
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Standard network data encryption ESM module (ESM-SNDE)
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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 11 Encryption card attributes
Attribute
Protocol
Hardware encryption algorithm
VPM (Voice Processing Module) functions to implement the encryption/decryption,
EC and CNG of voices.
VCPM (Voice Co-Processing Module) processes the voice data in combination with
VPM.
Voice co-processing module (RT-VCPM)
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8-channel voice processing module (RT-VPM8)
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16-channel voice processing module (RT-VPM16)
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24-channel voice processing module (RT-VPM24)
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32-channel voice processing module (RT-VPM32)
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VPM/VCPM is only available on MSR 20-40.
Description
IPsec
Key algorithms: DES, 3DES, AES
Authentication algorithms:
HMAC-MD5-96, HMAC-SHA-1-96