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RE: compression and encryption



good analysis.  one minor note:  If a burst is compressed, certainly
uncompressing packet k requires receipt of packets 1..k-1.  But if
packet k is lost, is it necessary to retransmit packets 1..k-1?  Or
can the history be reset and the process begun again with k set
as 1?  The latter would allow a higher packet loss, since the
"average" packet loss would be lower.

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From: 	Steve Bellovin[SMTP:smb@research.att.com]
Sent: 	Wednesday, November 06, 1996 5:54 PM
To: 	ipsec@tis.com
Subject: 	compression and encryption

I've been thinking a lot about doing compression over a lossy medium
such as IP. 

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