F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Command Reference-6PW100

415
Default command level
2: System level
Usage guidelines
Interfaces with different network types operate differently. For example, broadcast interfaces on a
network need to elect a DIS and flood CSNP packets to synchronize the LSDBs, and P2P interfaces on a
network need not elect a DIS and have a different LSDB synchronization mechanism.
If only two routers exist on a broadcast network, configure the network type of attached interfaces as P2P
to avoid DIS election and CSNP flooding, saving network bandwidth, and speeding up network
convergence.
You can perform this configuration only for a broadcast network with only two attached routers.
Examples
# Configure the network type of the GigabitEthernet 1/1 interface as P2P.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/1
[Sysname-GigabitEthernet1/1] isis enable
[Sysname-GigabitEthernet1/1] isis circuit-type p2p
isis cost
Use isis cost to set the IS-IS cost of an interface.
Use undo isis cost to restore the default.
Syntax
isis cost value [ level-1 | level-2 ]
undo isis cost [ value ] [ level-1 | level-2 ]
Default
No cost is configured.
Views
Interface view
Default command level
2: System level
Parameters
value: Specifies an IS-IS cost for the interface. The cost range differs with cost styles.
• For cost styles narrow, narrow-compatible and compatible, the cost ranges from 1 to 63.
• For cost styles wide and wide-compatible, the cost ranges from 1 to 16777215. When the cost
value is 16777215, the neighbor TLV generated on the link can only be used to transmit relevant TE
information, but cannot be used to calculate routes.
level-1: Applies the cost to Level-1.
level-2: Applies the cost to Level-2.
Usage guidelines
If neither level-1 nor level-2 is included, the cost applies to both level-1 and level-2.