Administrator Guide

• Set interval between LSP generation.
ROUTER ISIS mode
lsp-gen-interval [level-1 | level-2] seconds
– seconds: the range is from 0 to 120.
The default is 5 seconds.
The default level is Level 1.
• Set the LSP size.
ROUTER ISIS mode
lsp-mtu size
– size: the range is from 128 to 9195.
The default is 1497.
• Set the LSP refresh interval.
ROUTER ISIS mode
lsp-refresh-interval seconds
– seconds: the range is from 1 to 65535.
The default is 900 seconds.
• Set the maximum time LSPs lifetime.
ROUTER ISIS mode
max-lsp-lifetime seconds
– seconds: the range is from 1 to 65535.
The default is 1200 seconds.
Example of Viewing IS-IS Conguration (ROUTER ISIS Mode)
To view the conguration, use the show config command in ROUTER ISIS mode or the show running-config isis
command in EXEC Privilege mode.
Dell#show running-config isis
!
router isis
lsp-refresh-interval 902
net 47.0005.0001.000C.000A.4321.00
net 51.0005.0001.000C.000A.4321.00
Dell#
Conguring the IS-IS Metric Style
All IS-IS links or interfaces are associated with a cost that is used in the shortest path rst (SPF) calculations. The possible cost
varies depending on the metric style supported.
If you congure narrow, transition, or narrow transition metric style, the cost can be a number between 0 and 63. If you congure
wide or wide transition metric style, the cost can be a number between 0 and 16,777,215. The system supports ve dierent metric
styles: narrow, wide, transition, narrow transition, and wide transition.
By default, the system generates and receives narrow metric values. Matrixes or costs higher than 63 are not supported. To accept
or generate routes with a higher metric, you must change the metric style of the IS-IS process. For example, if you congure the
metric as narrow, and a link state PDU (LSP) with wide metrics is received, the route is not installed.
The Dell Networking OS supports the following IS-IS metric styles.
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Intermediate System to Intermediate System