Huawei Quidway S5600 Series Operation Manual page 333

Operation Manual – Routing Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
In addition, OSPF supports network management. You can configure the binding
of the OSPF MIB with an OSPF process and configure the Trap message
transmission and logging functions.
4.7.1 Configuration Prerequisites
Before adjusting and optimizing an OSPF network, perform the following tasks:
Configuring the network layer addresses of interfaces so that the adjacent nodes
are reachable to each other at the network layer
Configuring basic OSPF functions
4.7.2 Configuring OSPF Timers
The Hello intervals for OSPF neighbors must be consistent. The value of Hello interval
is in inverse proportion to route convergence speed and network load.
The dead time on an interface must be at least four times of the Hello interval on the
same interface.
After a router sends an LSA to a neighbor, it waits for an acknowledgement packet from
the neighbor. If the router receives no acknowledgement packet from the neighbor
within the retransmission interval, it retransmits the LSA to the neighbor.
Table 4-14 Configure OSPF timers
Enter system view
Enter interface view
Set the hello interval on the
interface
Set the poll interval on the
NBMA interface
Operation
Huawei Technologies Proprietary
Command
system-view
interface
interface-type
interface-number
ospf timer hello
seconds
ospf timer poll
seconds
4-20
Chapter 4 OSPF Configuration
Description
—
—
Optional
By default, p2p and
broadcast interfaces
send Hello packets
every 10 seconds;
while p2mp
NBMA interfaces send
Hello packets every 30
seconds.
Optional
By default,
packets are sent every
120 seconds.
and
poll