Hierarchical Architecture Details

Byzantine

Replication

Fault Tolerant

Replication

Over

Secure Spread

Server Replica 1

Wide area representative

Byzantine

Replication

Fault Tolerant

Replication

Over

Secure Spread

Server Replica 2

Wide area standby

Byzantine

Replication

Fault Tolerant

Replication

Over

Secure Spread

Server Replica 3f+1

Wide area standby

o o o

Wide area network

Local area network

Local Site

Clients

Byzantine

Replication

Monitor

Fault Tolerant

Replication

Over

Secure Spread

Server Replica 1

Wide area representative

Byzantine

Replication

Monitor

Fault Tolerant

Replication

Over

Secure Spread

Server Replica 2

Wide area standby

Byzantine

Replication

Fault Tolerant

Replication

Over

Secure Spread

Server Replica 3f+1

Wide area standby

o o o

Wide area network

Local area network

Local Site

Clients

Monitor

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