3Com Router 3031, Command Reference Manual

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614 C
HAPTER
6: R
OUTING
P
ROTOCOL
View
Interface view
Parameter
■
value: Specifies the priority when selecting DIS, ranging from 0 to 127.By
default, the value is 64.
■
level-1: Specifies the priority when selecting Level-1 DIS.
■
level-2: Specifies the priority when selecting Level-2 DIS.
Description
Using the isis dis-priority command, you can configure the priority of an interface
for the corresponding level DIS election. Using the undo isis dis-priority command,
you can restore the default priority.
If the level is not specified, it defaults to set the Level-2 priority.
The IS-IS does not concern the concept of backup DIS. The router with the priority
0 can also run for the DIS, which is different from the DR election of OSPF.
For the related commands, see area-authentication-mode and
domain-authentication-mode.
Example
Set the priority of Interface serial1/0/0 to 127.
[3Com] interface serial1/0/0
[3Com-Serial1/0/0] isis dis-priority127 level-2
isis enable Syntax
isis enable [ tag ]
undo isis enable [ tag ]
View
Interface view
Parameter
■
tag: Name given to an IS-IS routing process, when executing isis command in
the system view. If not specified, it is null.
Description
Using the isis enable command, you can configure this interface to activate the
corresponding IS-IS routing process. Using the undo isis enable command, you can
cancel this designation.
By default, the IS-IS routing process is not enabled on an interface.
For the normal operation of the IS-IS protocol, the isis command must be used to
enable the IS-IS process. Then the network-entity command is used to set a
Network Entity Title (NET) for the router. And, at last, the isis enable command is
used to enable each interface on which the IS-IS process runs. The IS-IS protocol
will be enabled upon the completion of these configurations.
For the related commands, see isis and network-entity.