Specifications

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VPN 3000 Series Concentrator Reference Volume II: Administration and Monitoring

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Chapter 13 System Status

Monitoring | System Status | SEP

Note This screen appears on models 3015–3080 only.

This screen displays status and statistics for a VPN Concentrator SEP (Scalable Encryption Processing)

module, which performs hardware-based cryptographic functions:

• Random-number generation.

• Hash transforms (MD5 and SHA-1) for authentication.

• Encryption and decryption (DES and Triple-DES).

The screen shows cumulative data since the system was last booted or reset.

SEP Redundancy

The VPN Concentrator can contain up to four SEP modules for maximum system throughput and

redundancy. Two SEP modules provide maximum throughput; additional modules provide redundancy

in case of module failure.

SEP redundancy requires no configuration: it is always enabled and completely automatic; no

administrator action is required. If a SEP module fails, the VPN Concentrator automatically switches

active sessions to another SEP module. If the system has only one SEP module and it fails, the sessions

automatically use software cryptographic functions. Even if a SEP module fails, the VPN Concentrator

supports the number of sessions for which it is licensed.

If a SEP module fails, the system generates an event of severity level 2. It continues to generate an event

every 10 minutes until the failed module is removed or replaced and the VPN Concentrator is rebooted.

The front- and back-panel Status LEDs also indicate the failed module, as does this screen.