3Com S7906E - Switch, Configuration Manual

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Follow these steps to configure the OSPF network type for an Interface as NBMA:
To do… Use the command… Remarks
Enter system view system-view
—
Enter interface view
interface interface-type
interface-number
—
Configure the OSPF network
type for the interface as
NBMA
ospf network-type nbma
Required
By default, the network type of an
interface depends on the link
layer protocol.
Configure a DR priority for the
interface
ospf dr-priority priority
Optional
The default DR priority is 1
Exit to system view quit
—
Enter OSPF view
ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
—
Specify a neighbor and its DR
priority peer ip-address [ cost value |
dr-priority dr-priority ]
Required
The DR priority configured with the ospf dr-priority command and the one configured with the peer
command have the following differences:
z
The former is for actual DR election.
z
The latter is to indicate whether a neighbor has the election right or not. If you configure the DR
priority for a neighbor as 0, the local router will consider the neighbor has no election right, and thus
no hello packet is sent to this neighbor, reducing the number of hello packets for DR/BDR election
on networks. However, if the local router is the DR or BDR, it sends hello packets to the neighbor
with priority 0 for adjacency establishment.
Configuring the OSPF Network Type for an Interface as P2MP
Follow these steps to configure the OSPF network type for an interface as P2MP:
To do… Use the command… Remarks
Enter system view system-view
—
Enter interface view
interface interface-type
interface-number
—