Enhanced Security And Administration; Figure 9: Network Consolidation - Juniper JUNOS OS 10.4 - PROTECTED SYSTEM DOMAIN Configuration Manual

JUNOS 10.4 Protected System Domain Configuration Guide
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In Figure 9 on page 14, three separate networks (IPTV, enterprise VPN, and public IP) are
consolidated into one network. Instead of three core routers, only the JCS 1200 platform
interconnected with a single T640 router is required to support all three services.

Figure 9: Network Consolidation

Enhanced Security and Administration

By delineating fault and administrative domains on a single system, PSDs enable network
administrators to decrease the number of nodes and fiber interconnections between
routers, reducing the cost and complexity of existing point of presence (PoP) architectures.
Because each PSD maintains its own routing and processes in separate partitions, security
is enhanced. With fault isolation, network anomalies in one PSD do not affect another
PSD. Streamlined boundaries allow operational domains to be isolated logically, providing
more control over router administration.
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