Chapter 5
Setup and Configuration
RUGGEDCOM ROX II
User Guide
428
Managing LSP Refresh Intervals
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
Section 5.18.8, “Managing the Lifetime
.
•
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 Interval”
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
Section 5.18.8, “Managing the Lifetime of LSPs”
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.
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