Cisco ONS 15600 Reference Manual page 123

Circuits and Tunnels
This chapter explains Cisco ONS 15600 SDH high-order circuits, data communications channel (DCC),
and IP-encapsulated tunnels. To provision circuits and tunnels, refer to the Cisco ONS 15600 SDH
Procedure Guide.
Chapter topics include:
7.1 Overview, page 7-2
•
7.2 Circuit Properties, page 7-2
•
7.3 Cross-Connect Card Bandwidth, page 7-11
•
7.4 DCC Tunnels, page 7-11
•
• 7.5 Multiple Destinations for Unidirectional Circuits, page 7-12
• 7.6 SNCP Circuits, page 7-12
7.7 Protection Channel Access Circuits, page 7-14
•
7.8 MS-SPRing VC4/VC3 Squelch Table, page 7-15
•
7.9 Section and Path Trace, page 7-15
•
7.10 Automatic Circuit Routing, page 7-16
•
7.11 Manual Circuit Routing, page 7-17
•
7.12 Constraint-Based Circuit Routing, page 7-19
•
• 7.13 Bridge and Roll, page 7-19
7.14 Merged Circuits, page 7-24
•
7.15 Reconfigured Circuits, page 7-25
•
7.16 Server Trails, page 7-25
•
7.17 Traffic Routing over a Third-Party Network, page 7-26
•
7.18 Low-Order Traffic Routing over an ONS 15600 SDH Hub Node, page 7-27
•
7.19 High-Order VC3 Traffic Routing, page 7-29
•
Note In this chapter, "cross-connect" and "circuit" have the following meanings: cross-connect refers to the
connections that occur within a single ONS 15600 SDH to allow a circuit to enter and exit an
ONS 15600 SDH. Circuit refers to the series of connections from a traffic source (where traffic enters
the ONS 15600 SDH network) to the destination (where traffic exits an ONS 15600 SDH network).
78-18400-01
C H A P T E R
Cisco ONS 15600 SDH Reference Manual, Release 9.0
7
7-1