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vpn-instance
vpn-instance-name ] *
5. Configure the SNMP
notification output interval
and the maximum number
of SNMP notifications that
can be output at each
interval.
snmp trap rate-limit interval
trap-interval
count
trap-number
By default, OSPF outputs a
maximum of seven SNMP
notifications within 10
seconds.
Setting the LSU transmit rate
Sending large numbers of LSU packets affects router performance and consumes a large amount of
network bandwidth. You can configure the router to send LSU packets at an interval and to limit the
maximum number of LSU packets sent out of an OSPF interface at each interval.
To set the LSU transmit rate:
1. Enter system view.
system-view
N/A
2. Enter OSPF view.
ospf
[
process-id |
router-id
router-id |
vpn-instance
vpn-instance-name ] *
N/A
3. Set the LSU
transmit rate.
transmit-pacing interval
interval
count
count
By default, an OSPF interface
sends a maximum of three
LSU packets every 20
milliseconds.
Setting the maximum length of OSPF packets that can be
sent by an interface
In some scenarios, for example, when you establish OSPF neighbors over a tunnel, you can perform
this task to prevent OSPF packet fragmentation on the outgoing tunnel interface. Make sure the
maximum length of the OSPF packets plus the encapsulated header length is no greater than the
outgoing tunnel interface's MTU. For more information, see Layer 3—IP Services Configuration
Guide.
To set the maximum length of OSPF packets that can be sent by an interface:
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Set the maximum length of
OSPF packets that can be
sent by an interface.
ospf packet-size
value
By default, the maximum length of
OSPF packets that an interface
can send equals the interface's
MTU.
Enabling OSPF ISPF
When the topology changes, Incremental Shortest Path First (ISPF) computes only the affected part
of the SPT, instead of the entire SPT.
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