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  OSPF Topology
Table 18-60 describes the information that is displayed in link properties window. 
Service Alarms
As part of the topological link support, two new service alarms OSPF link down and OSPF link up are 
introduced. These alarms are generated on the OSPF links in cases such as misconfigurations, shutting 
down of physical interfaces or any other scenario that might break the OSPF...

  
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  Monitoring the CPT 50 Ring Support
Monitoring the CPT 50 Ring Support
The Cisco Carrier Packet Transport (CPT) Product Family with CPT600, CPT200 and CPT50 Series sets 
the industry benchmark as a compact carrier-class converged access and aggregation platform for 
Unified Packet Transport architectures.
The CPT 50 is a compact and operationally simple, yet highly scalable and flexible platform...

  
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  Monitoring the CPT 50 Ring Support
NoteTo view more details about the device, right-click the device and choose Inventory to view the inventory 
details. The Node Role field in the content pane denotes whether the CPT device is WRC or PRC.
Configuring CPT
The following commands can be launched from the inventory by right-clicking the appropriate node and 
choosing Commands > Configuration. Your...

  
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  Viewing the G8032 ERPS Configuration
Viewing the G8032 ERPS Configuration
Ethernet Ring Protection Switching is an effort at ITU-T under G.8032 Recommendation to provide 
sub-50ms protection and recovery switching for Ethernet traffic in a ring topology and at the same time 
ensuring that there are no loops formed at the Ethernet layer. 
An Ethernet ring consists of multiple Ethernet ring nodes. Each...

  
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  Viewing the G8032 ERPS Configuration
The G8032 technology also supports multiple ERP instances over a ring. An ERP instance is an entity 
that is responsible for the protection of subset of VLANs carried over the physical ring and it should 
configure its own R-APS channel, RPL, RPL Owner and RPL Neighbor nodes.
Ring protection switching process also occurs based on the detection of defects on the...

  
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  Viewing the G8032 ERPS Configuration
To view the G8032 Ethernet Ring Protection Switching Ring configuration:
Step 1Right-click on the required device and choose the Inventory option. 
Step 2In the Inventory window, choose Logical Inventory>G8032>Ring>ring name. The details of the 
ring are displayed in the content pane.
Table 18-62 describes the Ring properties.  Holdoff Timer The duration (in...

  
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  Viewing the G8032 ERPS Configuration
Unblocked VLAN IDs The list of VLAN IDs that are not blocked by the ring port. 
Untagged in Unblocked 
VLANsIndicates whether untagged traffic is unblocked by the ring port.
Ring Instance Entries tab
Instance The unique code assigned to the instance.
Node Type The node type that determines the node’s responsibility towards the 
instance. This can be Normal, Owner,...

  
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  Configuring REP and mLACP
Configuring REP and mLACP 
The following commands can be launched from the inventory by right-clicking the appropriate node and 
choosing Commands > Configuration. Your permissions determine whether you can run these 
commands (see Permissions for Managing Carrier Ethernet, page B-12). To find out if a device supports 
these commands, see the Cisco Prime Network 4.3.2...

  
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  Viewing the Remote Loop Free Alternate Configurations
Step 3In the content pane, click the RLFA Tunnels tab as shown in Figure 18-78. 
Figure 18-78 RLFA Tunnels tab
Table 18-63 describes the information that is displayed in the RLFA Tunnels tab. 
To view the IS-IS Remote LFA configuration:
Step 1Right-click on the required device and choose the Inventory option. 
Step 2In the Inventory window, choose...

  
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  Viewing the Remote Loop Free Alternate Configurations
Step 3In the content pane, click the RLFA Tunnels tab. For more information, see Table 18-63.
Tie-Breaking Rules for Remote LFA
A primary path can have multiple LFAs. A routing protocol is used to implement tie-breaking rules. 
When the primary path fails, then these rules help to eliminate multiple candidate LFAs, select one LFA 
per primary...