Managing Lsp Refresh Intervals; Viewing A List Of Lsp Refresh Intervals; Adding An Lsp Refresh Interval - Siemens RX1500 User Manual

Chapter 5
Setup and Configuration
Section 5.18.9

Managing LSP Refresh Intervals

IS-IS retains Link-State Packets (LSP) in the Link-State Database (LSDB) for only a short period of time unless
they are refreshed. By default, LSPs are retained in the LSDB for 1200 seconds (this is referred to as the lifetime
of the LSP) and are refreshed every 900 seconds.
The refresh interval is configurable for each area and routing type in the IS-IS network.
The following sections describe how to configure and manage refresh intervals for LSPs:
NOTE
For information about configuring the lifetime of an LSP, refer to
of LSPs".
• Section 5.18.9.1, "Viewing a List of LSP Refresh Intervals"
• Section 5.18.9.2, "Adding an LSP Refresh Interval"
• Section 5.18.9.3, "Deleting an LSP Refresh Interval"
Section 5.18.9.1

Viewing a List of LSP Refresh Intervals

To view a list of LSP refresh intervals configured for an IS-IS area, navigate to routing » dynamic » isis » area »
{name} » lsp-refresh-interval, where {name} is the unique name for a routing process that belongs to a specific
router. If intervals have been configured, the LSP Refresh Interval Routing Type table appears.
Figure 471: LSP Refresh Interval Routing Type
If no intervals have been configured, add intervals as needed. For more information, refer to
"Adding an LSP Refresh
Section 5.18.9.2

Adding an LSP Refresh Interval

To add an LSP refresh interval to an IS-IS area, do the following:
IMPORTANT!
The LSP refresh interval must be 300 seconds less than the LSP lifetime interval. For more information
about LSP refresh intervals, refer to
1. Navigate to routing » dynamic » isis » area » {name} » lsp-refresh-interval, where {name} is the unique
name for a routing process that belongs to a specific router.
2. Click <Add is-type>. The Key Settings form appears.
428
Interval".
Section 5.18.8, "Managing the Lifetime of
Section 5.18.8, "Managing the Lifetime
Section 5.18.9.2,
LSPs".
Managing LSP Refresh Intervals
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