1-1
Concepts and Applications
1
This section discusses the key benefits and applications of the Passport 4400 in
the areas listed below. (Special topics of interest that are included in the
subsections, are parenthetically noted.)
• Product Concept
• Bandwidth Management
• Voice Networks (NAS and NAC)
• IP/IPX Networks (RFC 1490 Direct Connect)
• Video Networks
• Legacy Data Networks
• WANs Services (PANL, SVCs and Backup Services)
• Scalability
• Cascaded Networks
• User Core Router
• Integrated Passport 4400/6400 Networks
• Installation and Service (InstallTool)
• Traffic Management
• Standards-Based Interoperability
Product Concept
The Passport 4400 integrates voice, fax, video and data traffic over a single WAN
connection, eliminating the need for separate, parallel branch network
equipment and links.
Advanced bandwidth and voice technologies optimize bandwidth usage for
maximum throughput and voice quality.
Data is transmitted from different WAN sources using a unique frame relay-
based network link protocol, the Passport Access Network Link (PANL). PANL
fragments long frames when voice frames need to be inserted. This reduces both
delay and delay variation. PANL then reassembles frames at the other end of
the link. The result is reduced WAN overhead and optional handling of voice
traffic.
To Next Page
Loading...
Need help?
General