Internode Topology Discovery and Communication
Optical applications on the NCS 1010 nodes must discover the OLT-OLT link topology. Span level applications must discover the adjacent nodes. Link level applications must learn the complete OLT-OLT link topology. NCS 1010 uses OSPF to discover the link topology and communicate topology information.
The networking devices running OSPF detect topological changes in the network, flood link-state updates to neighbors, and quickly converge on a new view of the topology. Each OSPF router in the network soon has the same topological view again.
Optical applications on NCS 1010 must discover the link topology, the different nodes and the node types, and the optical spectral band the nodes work on. NCS 1010 uses an enhanced version of OSPF that supports a new link-state advertisement attribute that advertises the node type and band.
Configure OSPF
The following commands are the necessary configurations for OSPF on an NCS 1010 OLT node.
configure
router ospf process-name
router-id router-id
distribute link-state
nsf
network point-to-point
redistribute connected
area area-id
interface Loopback1
interface GigabitEthernet0/0/0/0
The following commands are the necessary configurations for OSPF on an NCS 1010 ILA node.
configure
router ospf process-name
router-id router-id
distribute link-state
nsf
network point-to-point
redistribute connected
area area-id
interface Loopback1
interface GigabitEthernet0/0/0/0
interface GigabitEthernet0/0/0/2
 Important |
You must configure router ID during OSPF configuration on NCS 1010 nodes. |
See Implementing OSPF, for a description of the concepts and tasks necessary to implement OSPF on Cisco IOS XR.
Feedback