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[DotGNU]RE: Developers digest, Vol 1 #191 - 12 msgs

From: Gary L. Sun
Subject: [DotGNU]RE: Developers digest, Vol 1 #191 - 12 msgs
Date: Tue, 13 Nov 2001 15:52:39 +0800

Centralized management and dicentralized operations.
Distributed management causes not just maintenance
nightmare but also synchronization problems.

However, my 4 bits on this from practice, the system
deployed and run for 5 years now out in the field. Self-
configurability is needed. Without this capability, 
Synchronization of non-centralized data (isolated or
transparent token for auth) is problematic in nature in a
sense that replication will cross all participating 
servers or sites which breaks the security and privacy
and will also cause trustworthy concerns. 

Load balancing of distributed sites requires a common
sync message (or timing token) locked to a 3rd source
that is independent to all sites in a network. A common
and acceptable resolution is use GPS timing signal
(coarse) with timing internal of 1kHz (which is 
adequate) for this purpose.

Self-configurability can be achieved by replacation of
routing table but not user data. The common backend
service covers from layer 3 to layer 7.

This will be added to .VNET spec.


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