Dell Force10 Z9000 FTOS Command Line Reference Guide for the Z9000 System FTOS - Page 884
lsp-mtu, lsp-refresh-interval
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lsp-mtu Set the maximum transmission unit (MTU) of IS-IS link-state packets (LSPs). This command only limits the size of LSPs generated by this router. E-Series, S4810 Syntax Parameters lsp-mtu size To return to the default values, use the no lsp-mtu command. size The maximum LSP size, in bytes. The range is 128 to 1497 for Non- Jumbo mode and 128 to 9195 for Jumbo mode. The default is 1497. Defaults Command Modes Command History 1497 bytes. ROUTER ISIS Version 8.3.12.0 Version 7.5.1.0 Introduced on the S4810. Added support for LSP Throttling Enhancement. Usage Information The link MTU and the LSP MTU size must be the same. Because each device can generate a maximum of 255 LSPs, consider carefully whether you should configure the lsp-mtu command. lsp-refresh-interval Set the link state PDU (LSP) refresh interval. LSPs must be refreshed before they expire. When the LSPs are not refreshed after a refresh interval, they are kept in a database until their max-lsp-lifetime reaches zero and then LSPs is purged. E-Series, S4810 Syntax Parameters lsp-refresh-interval seconds To restore the default refresh interval, use the no lsp-refresh-interval command. seconds The LSP refresh interval, in seconds. This value has to be less than the seconds value specified with the max-lsp-lifetime command. The range is 1 to 65535 seconds. The default is 900. Defaults Command Modes Command History 900 seconds ROUTER ISIS Version 8.3.12.0 Introduced on the S4810. 884
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