password
Enter an alphanumeric string up to 16 characters long. If you do not
specify an encryption type or hmac-md5 keywords, the
password is processed as plain text which provides limited security.
Defaults No default password.
Command Modes ROUTER ISIS
Command History
Version 8.3.12.0 Introduced on the S4810.
Version 6.3.1.0 Introduced.
Usage
Information
The domain password is inserted in Level 2 link state PDUs (LSPs), complete sequence number
PDUs (CSNPs), and partial sequence number PDUs (PSNPs).
Related
Commands
• area-password – configures an IS-IS area authentication password.
• isis priority – configures the authentication password for an interface.
graceful-restart ietf
Enable graceful restart on an IS-IS router.
E-Series, S4810
Syntax
graceful-restart ietf
To return to the default, use the no graceful-restart ietf command.
Parameters
ietf Enter ietf to enable graceful restart on the IS-IS router.
Defaults Graceful restart disabled.
Command Modes ROUTER ISIS
Command History
Version 8.3.12.0 Introduced on the S4810.
Version 6.3.1.0 Introduced on the E-Series.
Usage
Information
Every graceful restart enabled router’s HELLO PDUs includes a restart TLV. This enables the
(re)starting as well as the existing ISIS peers to detect the GR capability of the routers on the
connected network. A flag in the Restart TLV contains restart request (RR), restart
acknowledge (RA) and suppress adjacency advertisement (SA) bit flags.
The ISIS graceful restart-enabled router can co-exist in mixed topologies where some routers
are graceful restart-enabled and others are not. For neighbors that are not graceful restart-
enabled, the restarting router brings up the adjacency per the usual methods.
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