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Configuring Fate Sharing (NSM Procedure)
Table 50: Fate Sharing Fields
Option
Comment
Copyright © 2010, Juniper Networks, Inc.
Fate sharing allows you to create a database of information that the constrained shortest
path first (CSPF) algorithm uses to compute one or more backup routing paths to use
in case the primary path becomes unstable. The database describes the relationships
between elements of the network. Through fate sharing, you can configure backup paths
that minimize the number of shared links and fiber optic cables, to ensure that in the
event of damage to a fiber optic cable, only the minimum amount of data is lost and that
a path still exists to the destination. For a backup path to work optimally, it must not
share links or physical fiber optic cables with the primary path. This ensures that a single
point of failure will not affect the primary and backup paths at the same time.
This feature enables you to specify groups of objects that share characteristics resulting
in backup paths to be used if primary paths fail. All objects are treated as /32 host
addresses. You can specify one or more objects within a group. The objects can be LAN
interfaces, device IDs, or point-to-point links.
To configure fate sharing in NSM:
In the navigation tree, select
1.
In the
list, double click the device to select it.
Devices
2.
Click the
Configuration
3.
In the configuration tree, expand
4.
Select
Fate Sharing
.
5.
Add or modify the parameters as specified in Table 50 on page 79.
6.
Click one:
7.
OK—To save the changes.
Cancel—To cancel the modifications.
Apply—To apply the routing option settings.
NOTE: After you make changes to a device configuration, you must push that
updated device configuration to the physical security device for those changes
to take effect. You can update multiple devices at one time. See the Updating
Devices section in the Network and Security Manager Administration Guide for
more information.
Function
Specifies the comment for the fate
sharing.
Device Manager > Devices
tab.
.
Routing Options
Your Action
Enter a comment.
Chapter 7: Configuring Routing Options
.
79
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