Reference Guide

Intermediate System to Intermediate System (IS-IS) | 877
Related
Commands
hello padding
e
Use to turn ON or OFF padding for LAN and point-to-point hello PDUs or to selectively turn padding
ON or OFF for LAN or point-to-point hello PDUs.
Syntax
hello padding [multi-point | point-to-point]
To return to default, use no hello padding [multi-point | point-to-point].
Parameters
Defaults
Both LAN and point-to-point hello PDUs are padded.
Command Modes
ROUTER ISIS
Command
History
Usage
Information
IS-IS hellos are padded to the full maximum transmission unit (MTU) size. Padding IS-IS Hellos
(IIHS) to the full MTU provides early error detection of large frame transmission problems or
mismatched MTUs on adjacent interfaces.
Related
Commands
hostname dynamic
e
Enables dynamic learning of hostnames from routers in the domain and allows the routers to advertise
the hostname in LSPs.
Syntax
hostname dynamic
To disable this command, enter no hostname dynamic.
Defaults
Enabled.
Command Modes
ROUTER ISIS
Command
History
Usage
Information
Use this command to build name-to-systemID mapping tables through the protocol. All show
commands that display systems also display the hostname.
Related
Commands
graceful-restart t3
Configure the overall wait time before Graceful Restart is completed.
multi-point (OPTIONAL) Enter the keyword multi-point to pad only LAN hello
PDUs.
point-to-point (OPTIONAL) Enter the keyword point-to-point to pad only
point-to-point PDUs.
Version 8.3.12.0 Introduced on S4810
isis hello padding Turn ON or OFF hello padding on an interface basis.
Version 8.3.12.0 Introduced on S4810
clns host Define a name-to-NSAP mapping.