Ring Topology

A ring topology displays the structure a ring and the connections between all nodes on the ring.

Navigation Path

In the NE Explorer, select an NE and choose Configuration > Packet Configuration > MPLS Management > MPLS-TP Shared Protection Ring Management from the Function Tree, click the Ring Topology tab.

Buttons

Button	Description
Delete	If ring nodes are deleted in E2E mode, the ring instances that the nodes reside in is also deleted. Then, the ring topology on other nodes will be updated. The failure to delete any nodes will cause E2E rollback. If the rollback fails, the ring topology on some NEs may be inconsistent with the actual topology. In this situation, you need to manually delete these nodes from the ring on NEs one by one until the ring topology is the same as the actual topology. NOTICE: Services may be interrupted because the ring channel will be also deleted after the deletion of a node.

Button

Description

Delete

If ring nodes are deleted in E2E mode, the ring instances that the nodes reside in is also deleted. Then, the ring topology on other nodes will be updated. The failure to delete any nodes will cause E2E rollback. If the rollback fails, the ring topology on some NEs may be inconsistent with the actual topology. In this situation, you need to manually delete these nodes from the ring on NEs one by one until the ring topology is the same as the actual topology.

NOTICE:

Services may be interrupted because the ring channel will be also deleted after the deletion of a node.

Parameters

**Table 1** Descriptions of the parameters for the ring topology
Field	Value	Description
Ring Node ID	For a real ring node: 1-127 For a virtual ring node: 128-255	Indicates the unique ID of a node on a shared protection ring.
LSR ID	Example: 200.0.0.30	Indicates the label switching router (LSR) ID of a node on a shared protection ring.