3com S7906E Manuel De Montage

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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: 
The former is for actual DR election. 
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
 
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