Manual Circuit Routing; Table 7-7 Bidirectional Sts Circuits - Cisco ONS 15600 Reference Manual

Chapter 7 Circuits and Tunnels
Automatic routing and its associated subfields are not available if both the Automatic Circuit Routing
Note
NE default and the Network Circuit Automatic Routing Overridable NE default are set to FALSE. For a
full description of these defaults see

7.11 Manual Circuit Routing

Routing circuits manually allows you to:
•
•
CTC imposes the following rules on manual routes:
•
•
•
If you enabled Fully Protected Path, CTC verifies that the route selection is protected at all segments. A
route can have multiple protection domains with each domain protected by a different scheme.
Table 7-7
generates an error.
Table 7-7
No. of Inbound Links
—
2
2
1
1
—
2
2
—
1
Table 7-8
generates an error.
Choose a specific path, not just the shortest path chosen by automatic routing.
Choose a specific STS on each link along the route.
All circuits in a shared packet ring should have links with a direction that flows from source to
destination.
If you enabled Fully Protected Path, choose a diverse protect (alternate) path for every unprotected
segment.
For a node that has a path protection selector based on the links chosen, the input links to the path
protection selectors cannot be 1+1 protected. The same rule applies at the path protection bridge.
summarizes the available bidirectional connections. Any other combination is invalid and
Bidirectional STS Circuits
No. of Outbound Links No. of Sources
2
—
1
2
—
1
2
—
2
1
summarizes the available unidirectional connections. Any other combination is invalid and
Appendix C, "Network Element Defaults."
1
—
—
—
—
2
—
—
2
—
Cisco ONS 15600 Reference Manual, R8.0
7.11 Manual Circuit Routing
No. of Drops Connection Type
— Path Protection
1 Path Protection
— Path Protection
— Path Protection
2 Path Protection
— Path Protection
— Double Path
Protection
2 Double Path
Protection
— Double Path
Protection
— Two-way
7-19