Novell EDIRECTORY 8.8 SP3, Руководство администратора, Страница: 297 / 634

WAN Traffic Manager 297
n
ov
do
cx (e
n)
11
Ju
ly 20
08
12.1.4 Assigning Cost Factors
Cost factors let WAN Traffic Manager compare the cost of traffic with certain destinations, then
manage the traffic using WAN policies. WAN policies use cost factors to determine the relative
expense of WAN traffic. You can then use this information in determining whether to send traffic.
A cost factor is expressed as expense per unit of time. It can be in any units as long as the same units
are used consistently in each WAN traffic policy. You can use dollars per hour, cents per minute, yen
per second, or any other ratio of expense to time, as long as you use that ratio exclusively.
You can assign destination cost factors representing the relative expense of traffic to particular
address ranges. Therefore, you can assign cost for an entire group of servers in one declaration. You
can also assign a default cost factor to be used when no cost is specified for a destination.
If no cost is assigned for the destination, the default cost is used. If you have specified no default
cost for the server or LAN Area object, a value of -1 is assigned.
For information about a sample policy that restricts traffic based on cost factor, see “Costlt20.wmg”
on page 298 .
For information about how to modify a policy, see “Modifying WAN Policies” on page 293 .
Assigning Default Cost Factors
1 In Novell iManager, click the Roles and Tasks button Description: Roles and Tasks button .
2 Click WAN Traffic Management > WAN Traffic Manager Overview .
3 Click View LAN Areas , then click a LAN Area object.
or
Click
View NCP Server , then click an NCP Server object.
4
Click
Costs
, then specify a cost in the Default Cost field.
The cost must be a nonnegative integer. If supplied, the default cost will be assigned to all
destinations in the Server or LAN Area object that do not fall within a destination address range
with an assigned cost. For example, you might specify the cost in monetary units, such as
dollars, or in packets per second.
5 Click Apply , then click OK .
Assigning a Cost to a Destination Address Range
1 In Novell iManager, click the Roles and Tasks button Description: Roles and Tasks button .
2 Click WAN Traffic Management > WAN Traffic Manager Overview .
3 Click View LAN Areas , then click a LAN Area object.
or
Click
View NCP Server , then click an NCP Server object.
4
Click Costs .
5 Click the Add button Description: Add button .
6 In the Create Wanman Cost window, select TCP/IP Address Type or IPX Address Type .
7 Specify the start address and stop address of the range, in the appropriate format for TCP/IP or
IPX.