R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101

455
Description
Use isis circuit-level to set the circuit level for the interface.
Use undo isis circuit-level to restore the default.
An interface can establish either the Level-1 or Level-2 adjacency by default.
For a Level-1 (Level-2) router, the circuit level can only be Level-1 (Level-2). For a Level-1-2 router, you need
to specify a circuit level for a specific interface to form only the specified level neighbor relationship.
Related commands: is-level.
Examples
# GigabitEthernet 4/2 is connected to a non backbone router in the same area. Configure the circuit
level of GigabitEthernet 4/2 as Level-1 to prevent sending and receiving Level-2 Hello packets.
<Sysname> system-view
[Sysname] interface GigabitEthernet 4/2
[Sysname-GigabitEthernet4/2] isis enable
[Sysname-GigabitEthernet4/2] isis circuit-level level-1
isis circuit-type p2p
Syntax
isis circuit-type p2p
undo isis circuit-type
View
Interface view
Default level
2: System level
Parameters
None
Description
Use isis circuit-type p2p to configure the network type for an interface as P2P.
Use the undo isis circuit-type command to cancel the configuration.
By default, the network type of an interface depends on the physical media.
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.
NOTE:
• You can perform this configuration only for a broadcast network with only two attached routers.
• This command is not supported in loopback interface view.