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Description Use the lsp-fragments-extend command to enable LSP fragment extension in a
specified mode and level.
Use the
undo lsp-fragments-extend command to disable this feature.
The feature is disabled by default.
Note the following:
■ After LSP fragment extension is enabled in an IS-IS process, the MTUs of all the
interfaces on which this IS-IS process is enabled must not be less than 512;
otherwise, LSP fragment extension will not take effect.
■ At least one virtual system needs to be configured for the router to generate
extended LSP fragments. An IS-IS process allows 50 virtual systems at most.
Examples # Enable LSP fragment extension of mode-1 and Level-2.
<Sysname> system-view
[Sysname] isis
[Sysname-isis-1] lsp-fragments-extend mode-1 level-2
lsp-length originate
Syntax lsp-length originate size [ level-1 | level-2 ]
undo lsp-length originate [ level-1 | level-2 ]
View IS-IS view
Parameters size: Specifies the maximum size in bytes of a LSP packet, ranging from 512 to
16384.
level-1: Applies the size to Level-1 LSP packets.
level-2: Applies the size to Level-2 LSP packets.
n
If neither Level-1 nor Level-2 is specified in the command, the configured
maximum size applies to the current IS-IS level.
Description Use the
lsp-length originate command to configure the maximum size of
generated Level-1 or Level-2 LSPs.
Use the
undo lsp-length originate command to restore the default.
The maximum size of 1497 bytes is the default.
Examples # Configure the maximum size of the generated Level-2 LSPs as 1024 bytes.
<Sysname> system-view
[Sysname] isis
[Sysname-isis-1] lsp-length originate 1024 level-2