HP VPN Firewall Appliances Network Management Configuration Guide

379
Table 47 Configuration items
Item Descri
p
tion
Interface Displays the OSPF interface name.
Hello Interval
Set the interval for sending hello packets. The hello interval must be identical on
OSPF neighbors.
The hello interval on P2P, Broadcast interfaces defaults to 10 seconds and defaults
to 30 seconds on P2MP and NBMA interfaces.
The smaller the hello interval is, the faster the network converges and the more
network resources are consumed.
The interfaces on a specific network segment must have the same Hello interval.
Dead Interval
Set the OSPF dead interval.
Within the dead interval, if the interface receives no hello packet from the neighbor,
it declares that the neighbor is down.
The default dead interval is 40 seconds on P2P, Broadcast interfaces and 120
seconds on P2MP and NBMA interfaces.
The dead interval should be at least four times the hello interval on an interface. The
interfaces on a specific network segment must have the same dead interval.
Network Type
Set the network type for the interface, which can be Broadcast, NBMA, P2P, or
P2MP.
The default network type of an interface depends on the link layer protocol of the
interface:
• If the link layer protocol is Ethernet or FDDI, the network type of the interface
defaults to Broadcast.
• If the link layer protocol is ATM, Frame Relay, or X.25, the network type of the
interface defaults to NBMA.
• If the link layer protocol is PPP, LAPB, HDLC, or POS, the network type of the
interface defaults to P2P.
IMPORTANT:
For the OSPF interfaces whose default network type is not NBMA or P2P, the Web
interface does not support configuring them as NBMA or P2P interfaces.
DR Priority
Set the router priority of the interface for DR/BDR election.
Routers in a network elect the DR and BDR according to their router priorities. The
bigger the value, the higher the priority. If a device has a priority of 0, it will not be
elected as a DR or BDR.