Cisco ONS 15454 SDH - Figure 17-12 Two Node Cisco Proprietary RPR after the Deletion

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Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Chapter 17 Configuring Cisco Proprietary Resilient Packet Ring
Delete an ML-Series Card from a Cisco Proprietary RPR
Figure 17-12 Two Node Cisco Proprietary RPR After the Deletion
To delete an ML-Series card from the Cisco proprietary RPR, you need to complete several general
actions:
• Force away any existing non-ML-Series card circuits, such as DS-1, that use the spans that will be
deleted.
• Shut down the POS ports on the adjacent ML-Series cards for the STS circuits that will be deleted
to initiate the Cisco proprietary RPR wrap.
• Test Ethernet connectivity between the access ports on the existing adjacent ML-Series cards with
a test set to ensure that the Cisco proprietary RPR wrapped successfully.
• Delete the two STS circuits that will be replaced by the new circuits. (In Figure 17-11, this is the
circuit between the Delete Node and one Adjacent Node, and the circuit between the Delete Node
and the other Adjacent Node.)
• Remove the Delete Node from the ring topology if desired.
• Physically remove the delete ML-Series card from the node if desired.
• Create an STS circuit from the available POS port of one of the remaining adjacent ML-Series cards
to the available POS port on the other remaining adjacent ML-Series card. (In Figure 17-12, this is
the circuit between Adjacent Node 2, POS Port 0 and Adjacent Node 1, POS Port 1.)
• Enable the POS ports on the existing adjacent ML-Series cards. (In Figure 17-12, this is the
Adjacent Node 2, POS Port 0 and the Adjacent Node 1, POS Port 1.)
• Test Ethernet connectivity between the access ports on the adjacent ML-Series card with a test set
to validate the two-node Cisco proprietary RPR.
• Monitor Ethernet traffic and existing routing protocols for at least an hour after the node deletion.
SPR 1
POS 1
POS 0
POS 0
POS 1
= STS circuit created on CTC
Adjacent Node 2
Adjacent Node 1
This STS circuit
was created after the deletion.
Deleted Node
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