Korenix 6852G Series, Руководство пользователя

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Korenix Technology Co., Ltd. Industrial Layer 3 Managed Ethernet Switch
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Industrial Layer 3 Managed Ethernet SwitchUser Manual
Page: 1154/1246
State - The current state of the selected router interface. One of:

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.

Loopback - In this state, the router's interface to the network is looped back either in
hardware or software. The interface is unavailable for regular data traffic. However, it
may still be desirable to gain information on the quality of this interface, either through
sending ICMP pings to the interface or through something like a bit error test. For this
reason, IP packets may still be addressed to an interface in Loopback state. To facilitate
this, such interfaces are advertised in router- LSAs as single host routes, whose
destination is the IP interface address.

Waiting - The router is trying to determine the identity of the (Backup) Designated Router
for the network 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 W aiting state.
This prevents unnecessary changes of (Backup) Designated Router.

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 State is only displayed if the OSPF admin mode is enabled.
Designated Router - The identity of the Designated Router for this network, in the view of the
advertising router. The Designated Router is identified here by its router ID. The value 0.0.0.0
means that there is no Designated Router. This field is only displayed if the OSPF admin mode is
enabled.
Backup Designated Router - The identity of the Backup Designated Router for this network, in
the view of the advertising router. The Backup Designated Router is identified here by its router ID.
Set to 0.0.0.0 if there is no Backup Designated Router. This field is only displayed if the OSPF
admin mode is enabled.
Local Link LSAs - The number of opaque LSAs whose flooding scope is the link on this interface.
Link Local LSA Checksums - The sum of the checksums of local link LSAs for this link.
Number of Link Events - This is the number of times the specified OSPF interface has changed
its state. This field is only displayed if the OSPF admin mode is enabled.
Command Buttons
Configure - Display a new screen where you can select the authentication method for the
virtual link.
Submit - Send the updated configuration to the switch. Configuration changes take effect
immediately. These changes will not be retained across a power cycle unless a save is