Manual Circuit Routing; Table 7-7 Bidirectional Sts Circuits; Table 7-8 Unidirectional Sts Circuits - Cisco ONS 15600 Series Reference Manual

7.11 Manual Circuit Routing

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.
Table 7-8
No. of Inbound Links
1
1
—
2
Cisco ONS 15600 Reference Manual, R7.0
7-20
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
Unidirectional STS Circuits
No. of Outbound Links No. of Sources
1
2
2
—
No. of Drops
1 —
— 1
— —
— —
— 2
2 —
— —
— 2
2 —
— —
No. of Drops
— —
— —
1 —
— 1+
Chapter 7 Circuits and Tunnels
Connection Type
UPSR
UPSR
UPSR
UPSR
UPSR
UPSR
Double UPSR
Double UPSR
Double UPSR
Two-way
Connection Type
One-way
UPSR head end
UPSR head end
UPSR drop and
continue