User Guide

68 Place Book Title Here
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August 30, 2001
Novell Confidential
Manual 99a38 July 17, 2001
This parameter is required only if you enabled the Authentication
parameter for the area you select, as described in Step 6 on page 66.
IMPORTANT: Not all interfaces within the same area are required to have
the same authentication key; however, all interfaces connected to the same
network must have the same authentication key.
10 Press Esc until you are prompted to save your changes, and then select
Yes .
11 Press Esc to return to the Internetworking Configuration menu.
12 If you want these changes to take effect immediately, select Reinitialize
System > Yes.
Configuring Load Sharing over Equal-Cost OSPF Routes
IP maintains multiple equal-cost OSPF routes. Load sharing enables a router
to divide traffic over equal-cost routes. The router can have several next hops
available toward any destination. With this configuration, the router can
divide the traffic among the various equal-cost routes to the destination. As a
result, load sharing increases the effective bandwidth of an end-to-end path. In
addition, it can improve the traffic distribution on an internetwork.
NOTE: Load sharing is performed only on equal-cost routes learned from OSPF.
You enable load sharing within OSPF. IP maintains a maximum of four equal-
cost routes to each destination network. The OSPF equal-cost routes are
maintained internally and are not displayed in TCPCON.
IMPORTANT: Because OSPF networks tend to be large and complex, we
recommend that you do not manually adjust the cost of the interface to create
equal-cost routes. It is best to let OSPF automatically determine the equal-cost
routes to the destination network.
To configure load sharing on the router do the following:
1 Load INETCFG, and then select Protocols > TCP/IP.
2 Select OSPF > Enabled.
3 Select OSPF Configuration.
4 Select IP Load Sharing > Enabled.
5 Press Esc until you are prompted to save your changes, and then select
Yes .
6 Press Esc to return to the Internetworking Configuration menu.