User's Manual

543
Users Manual of CS-6306R
54.3.2 Setting the Parameters of the OSPFv3 Interface
During OSPFv3 realization, related OSPFv3 parameters on an interface are allowed to be modified according
to actual requirements. Of cause you have no need to change every parameter, but you have to make sure
that some parameters are consistent on all routers in the connected networks.
Run the following commands in interface configuration mode to do relevant configurations:
Command Purpose
ipv6 ospf costcost
Sets the cost of the packet that is transmitted from the OSPFv3
interface.
ipv6 ospf retransmit-interval seconds
Sets the LSA retransmission interval between neighbors.
ipv6 ospf transmit-delayseconds
Sets the delay time for transmitting LSA on an OSPFv3 interface.
ipv6 ospf prioritynumber
Sets a router to be the priority of the OSPFv3 DR router.
ipv6 ospf hello-intervalseconds
Sets the interval for the OSPFv3 interface to transmit the Hello
packets.
ipv6 ospf dead-intervalseconds
Means that in a regulated interval if the OSPFv3 packets are not
received from a neighboring router, this neighboring router is
viewed to be shut down.
54.3.3 Setting OSPFv3 on Different Physical Networks
OSPFv3 divides physical network media into the following three kinds:
 Broadcast networks (Ethernet, Token Ring, FDDI)
 Non-broadcast and multi-access networks (SMDS, Frame Relay, X.25)
 Point-to-point networks (HDLC, PPP)
54.3.4 Setting the OSPF Network Type
No matter what physical media type the network is, you can configure your network to be a broadcast network,
a non-broadcast network or a multi-access network. So you can set your network flexibly and your network
can be set to be a non-broadcast and multi-access one, or a broadcast network such as the X.25, Frame
Relay or SMDS network. Also the neighbor’s settings will be simplified.
To set an un-broadcast and multi-access network is to suppose that every two routers have a virtual link or
suppose a full-mesh network. It is unrealistic due to unbearable cost. But you set this network to be a
point-to-multipoint one. Between those routers which are not adjacent the routing information can be switched
through the virtual link.
The OSPFv3 point-to-multipoint interface can be set to be multipoint-to-point interface, through which multiple
routes of a host can be established. The OSPFv3 point-to-multipoint network, comparing with the
non-broadcast and multi-access network or the point-to-point network, has the following advantages:
 The point-to-multipoint network is easy to be set without generating DR.
 This kind of network do not require the full-mesh topology, so the construction cost is relatively low.
 This kind of networks are more reliable. Even if its virtual link fails, the connection can be maintained.
The network type of the routers is the broadcast type.