3Com S7906E Command Reference Manual page 795

The router LSAs from the stub router may contain different link type values. A value of 3 means a link to
the stub network, so the cost of the link remains unchanged. A value of 1, 2 or 4 means a point-to-point
link, a link to a transit network or a virtual link; in such cases, a maximum cost value of 65535 is used.
Thus, other neighbors find the links to the stub router have such big costs, they will not send packets to
the stub router for forwarding as long as there is a route with a smaller cost.
Examples
# Configure a stub router.
<Sysname> system-view
[Sysname] ospf 100
[Sysname-ospf-100] stub-router
transmit-pacing
Syntax
transmit-pacing interval interval count count
undo transmit-pacing
View
OSPF view
Default Level
2: System level
Parameters
interval: Interval at which an interface sends LSU packets, in milliseconds. Its value is in the range 10 to
1000. If the router has a number of OSPF interfaces, you are recommended to increase this interval to
reduce the total numbers of LSU packets sent by the router every second.
count: Maximum number of LSU packets sent by an interface at each interval. It is in the range 1 to 200.
If the router has a number of OSPF interfaces, you are recommended to decrease this interval to
reduce the total numbers of LSU packets sent by the router every second.
Description
Use the transmit-pacing command to configure the maximum number of LSU packets that can be sent
every the specified interval.
Use the undo transmit-pacing command to restore the default.
By default, an OSPF interface sends up to three LSU packets every 20 milliseconds.
Examples
# Configure all the interfaces under OSPF process 1 to send up to 10 LSU packets every 30
milliseconds.
<Sysname> system-view
[Sysname-ospf-1] transmit-pacing interval 30 count 10
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