Enterasys Networks CSX7000 User Manual download pdf (Page 240)

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USER’S GUIDE

240 CyberSWITCH

MULTIPLE MAC/IP ADDRESSES

For backup purposes, you may want to consider using the multiple MAC or multiple IP address

feature to set up redundant configurations to use in conjunction with encryption. In such

configurations, you must be sure that all CyberSWITCH nodes have the same or comparable

Security Associations. When multiple paths through different secure gateways exist, you must be

sure such paths are properly protected.

PPP C

OMPRESSION

For IP Layer encryption:

We do not recommend using PPP compression if you anticipate a large percentage of encrypted

traffic across your network. PPP protocol runs at a lower layer than Internet Protocol; therefore, any

data compression performed on ESP datagrams is attempted after the packet has been encrypted.

Unfortunately, well-encrypted data is not compressible.

For Link Layer encryption:

PPP compression is available. This compression takes place before the actual encryption.

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