Viewing OSPFv3 neighbors
View OSPFv3 neighbors to see routers with interfaces to a common network.
The OSPFv3 hello protocol maintains and dynamically discovers neighbor relationships.
The exception is an NBMA network; you manually configure permanent neighbors on each router eligible to become the designated router (DR).
Procedure
- In the navigation tree, expand the following folders: .
- Click OSPFv3.
- Click the Neighbors tab.
Neighbors field descriptions
Use the data in the following table to use the Neighbors tab.
Name | Description |
|---|---|
IfIndex | Displays the local-link ID of the link over which the neighbor can be reached. |
RtrId | Identifies the neighboring router in the Autonomous System. The value is the router ID of the neighboring router, which in OSPF uses the same format as an IPv6 address but identifies the router independent of IPv6 address. |
Address | Displays the IPv6 address for the neighbor associated with the local link. |
Options | Displays the bit mask that corresponds to the options field on the neighbor. |
State | Displays the state of the relationship with the neighbor. The value can be one of the following:
|
NbrIfId | Displays the interface ID that the neighbor advertises in its hello packets on this link. |
DeadIntCnt | Displays the Dead interval Count or TTL (time to live) field that indicates how many seconds remain before the system declares the Neighbor down. The starting value is the Router Dead Interval value and it decrements to 0 if no Hello is received for that neighbor within the interval. If no Hello is received within the interval, then the system declares the neighbor down. When a hello is received for the neighbor, the system resets the value to the Router Dead Interval value. |