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Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5
78-18133-01
Chapter 14 Configuring Resilient Packet Ring on the ML-Series Card
Add an ML-Series Card into an RPR
Add an ML-Series Card into an RPR
An existing RPR might need an ML-Series card added. This can be done without taking down data traffic
due to the RPR wrapping capability and ring architecture. You can add the ML-Series card in concert
with the addition of the node containing the card into the underlying SONET architecture. You can also
add an ML-Series card to a node that is already part of the SONET topology.
The following example has a two-node RPR with two STS circuits connecting the ML-Series cards. One
circuit will be deleted. The RPR will wrap traffic on the remaining circuit with as little as a one ping
loss. The third node and ML-Series card are then added in, and the spans and circuits for this card are
created.
Figure 14-7 shows the existing two-node RPR with the single STS circuit and span that will be deleted.
Figure 14-7 Two-Node RPR Before the Addition
Figure 14-8 shows the RPR after the third node is added with the two new STS circuits and spans that
will be added.
SPR 1
POS 1
POS 0
POS 0
POS 1
= STS circuit created on CTC
Adjacent
Node 2
Adjacent
Node 1
This STS circuit
will be deleted.
New Node
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