Default level
2: System level
Parameters
None
Description
Use
isis bfd enable
to enable BFD on an IS-IS interface for link failure detection.
Use
undo
isis
bfd enable
to disable BFD on an IS-IS interface.
By default, an IS-IS interface is not enabled with BFD.
Examples
# Enable BFD for IS-IS on VLAN-interface 11.
<Sysname> system-view
[Sysname] interface vlan-interface 11
[Sysname-Vlan-interface11] isis enable
[Sysname-Vlan-interface11] isis bfd enable
isis circuit-level
Syntax
isis circuit-level
[
level-1
|
level-1-2
|
level-2
]
undo
isis circuit-level
View
Interface view
Default level
2: System level
Parameters
level-1
: Sets the circuit level to Level-1.
level-1-2
: Sets the circuit level to Level-1-2.
level-2
: Sets the circuit level to Level-2.
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
# VLAN-interface 10 is connected to a non backbone router in the same area. Configure the circuit
level of VLAN-interface 10 as Level-1 to prevent sending and receiving Level-2 Hello packets.
<Sysname> system-view
[Sysname] interface vlan-interface 10
[Sysname-Vlan-interface10] isis enable
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