NETGEAR GSM7252PS - ProSafe 52 Ports Gigabit Ethernet L2 Managed Stackable Switch User Manual page 322

ProSafe® Gigabit L3 Managed Stackable Switches Software Administration Manual
Table 45.
Field
Neighbor State
State
Metric
322 | Chapter 4. Routing
Description
The state of the Virtual Neighbor Relationship.
The state of the interface:
•
Down: This is the initial interface state. In this
state, the lower-level protocols have indicated that
the interface is unusable. In this state, interface
parameters will be set to their initial values. All
interface timers will be disabled, and there will be
no adjacencies associated with the interface.
•
Waiting: The router is trying to determine the
identity of the (Backup) Designated Router by
monitoring received Hello Packets. The router is
not allowed to elect a Backup Designated Router
or a Designated Router until it transitions out of
Waiting state. This prevents unnecessary changes
of (Backup) Designated Router.
•
Point-to-Point: The interface is operational, and is
connected either to the virtual link. On entering this
state the router attempts to form an adjacency with
the neighboring router. Hello Packets are sent to
the neighbor every HelloInterval seconds.
• Designated Router: This router is itself the
Designated Router on the attached network.
Adjacencies are established to all other routers
attached to the network. The router must also
originate a network-LSA for the network node. The
network- LSA will contain links to all routers
(including the Designated Router itself) attached to
the network.
•
Backup Designated Router: This router is itself
the Backup Designated Router on the attached
network. It will be promoted to Designated Router if
the present Designated Router fails. The router
establishes adjacencies to all other routers
attached to the network. The Backup Designated
Router performs slightly different functions during
the Flooding Procedure, as compared to the
Designated Router.
•
Other Designated Router: The interface is
connected to a broadcast or NBMA network on
which other routers have been selected to be the
Designated Router and Backup Designated Router
either. The router attempts to form adjacencies to
both the Designated Router and the Backup
Designated Router.
The metric value used by the Virtual Link.