365-575-102 Operation: NTP-007
Issue 8.0, July 2002 Page 3 of 6
Figure 1 – Five Node Ring (Two Nodes with DRI Cross-Connections and Five
Drops)
In Figure 1, the topology is a five node ring with two DRIs protecting each other at
node 0 and at node 2. Each node has a drop cross-connection from the West
direction on time slot 6. In addition, node 1, node 3, and node 4 have a through
(continue) cross-connection. TID rule A applies to all source nodes and secondary
nodes. TID rule B applies to all destination nodes.
node0
4a
1-way drop
1w-6 to 4a
source=node0
...
4b
node1
4a
node2
4a
...
4b
node3
4a
node4
4a
1-way-DRI
4b to 1e-6
dest=node2
second=node0
1-way drop
1w-6 to 4a
source=node0
1-way thru
1w-6 to 1e-6
dest=node2
source=node0
1-way drop
1w-6 to 4a
source=node0
1-way-DRI
4b to 1e-6
dest=node0
second=node0
1-way drop
1w-6 to 4a
source=node0
1-way thru
1w-6 to 1e-6
dest=node0
source=node0
1-way drop
1w-6 to 4a
source=node0
1-way thru
1w-6 to 1e-6
dest=node0
source=node0
tpa 849524/01
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