OSPF and OSPFv3
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M4300 Series and M4300-96X Fully Managed Switches User Manual
16. Set the OSPFv3 Network Type on the interface by selecting either Broadcast or
Point-to-Point Mode from the list.
OSPFv3 selects a designated router and originates network LSAs only for broadcast
networks. No more than two OSPFv3 routers can be present on a point-to-point link. The
default network type for Ethernet interfaces is Broadcast.
17. In the
Metric Cost field, enter the value for the cost T
ype of Service (TOS).
OSPF uses this value in computing shortest paths. The range is from 1 to 65,535. The
default is 1. Metric Cost is configurable only if OSPFv3 is initialized on the interface.
18. Click the Apply button.
Your settings are saved.
The following table describes the nonconfigurable information that is displayed.
Table 142. Advanced OSPFv3 Interface Configuration
Field Description
IPv6 Address The IPv6 address of the interface.
LSA Ack Interval (secs) The number of seconds between LSA acknowledgment packet transmissions,
which must be less than the retransmit interval.
State The current state of the selected router interface. State is one of the following:
• Down.
This is the initial interface state. The lower-level protocols indicate
that the interface is unusable. Interface parameters are set to their initial
values.
All interface timers are disabled, and there are no adjacencies
associated with the interface.
• Loopback. The router's interface to the network is looped back in either the
hardware or software.
The interface is unavailable for regular data traffic.
However, you might want to gain information about 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 can 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.
• W
aiting. 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 waiting state. This prevents unnecessary
changes of backup designated router.
• Designated Router. This router is 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 contains links to all routers (including the
designated router) attached to the network.
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