Managing Spf Calculations; Viewing A List Of Spf Calculation Intervals; Adding An Spf Calculation Interval - Siemens RX1500 User Manual

RUGGEDCOM ROX II
User Guide
3. Click Delete next to the chosen interval.
4. Click Commit to save the changes or click Revert All to abort. A confirmation dialog box appears. Click OK
to proceed.
Click Exit Transaction or continue making changes.
5.
Section 5.18.7

Managing SPF Calculations

IS-IS uses the Shortest Path First (SPF) algorithm to determine the best routes to every known destination in the
network. When the network topology (not external links) changes, a partial recalculation is required.
IS-IS can be configured to perform the SPF calculation every 1 to 120 seconds. By default, IS-IS performs the
SPF calculation every second. which could potentially be processor intensive, depending on the size of the area
and how often the topology changes.
The following sections describe how to configure and manage SPF calculations for IS-IS areas:
• Section 5.18.7.1, "Viewing a List of SPF Calculation Intervals"
• Section 5.18.7.2, "Adding an SPF Calculation Interval"
• Section 5.18.7.3, "Deleting an SPF Calculation Interval"
Section 5.18.7.1

Viewing a List of SPF Calculation Intervals

To view a list of SPF calculation intervals configured for an IS-IS area, navigate to routing » dynamic » isis »
area » {name} » spf-interval, where {name} is the unique name for a routing process that belongs to a specific
router. If intervals have been configured, the SPF Interval Routing Type table appears.
Figure 463: SPF Interval Routing Type
If no intervals have been configured, add intervals as needed. For more information, refer to
"Adding an SPF Calculation
Section 5.18.7.2

Adding an SPF Calculation Interval

To add an SPF calculation interval to an IS-IS area, do the following:
Navigate to routing » dynamic » isis » area » {name} » spf-interval, where {name} is the unique name for
1.
a routing process that belongs to a specific router.
Click <Add is-type>. The Key Settings form appears.
2.
Managing SPF Calculations
Interval".
Chapter 5
Setup and Configuration
Section 5.18.7.2,
423