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1064 CHAPTER 74: IS-IS CONFIGURATION COMMANDS
Description Use the isis circuit-level command to configure link adjacency level for an
interface of a level-1-2 router.
Use the
undo isis circuit-level command to restore the default.
An interface can establish level-1-2 adjacency by default.
This command is only available on a level-1-2 router. You can use it to configure an
interface to establish the adjacency of a specified level (level-1 or level-2) with
the neighbor, making the interface handle only the specified level hello packets.
An interface can receive and send only one level hello packet on a point-to-point
link. Using this command can reduce the router’s processing time and save
bandwidth.
Related commands: is-level.
Examples # Suppose serial 2/0 is connected to a non backbone router in the same area.
Configure the link adjacency level of serial 2/0 as Level-1 to prevent sending and
receiving Level-2 Hello packets.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] isis enable
[Sysname-Serial2/0] isis circuit-level level-1
isis circuit-type
Syntax isis circuit-type p2p
undo isis circuit-type
View Interface view
Parameters p2p: Specifies the interface’s network type as P2P.
Description Use the
isis circuit-type command to configure the network type for an
interface.
Use the
undo isis circuit-type command to restore the default.
By default, the network type of a router’s interface depends on the physical media.
n
This command is not available in the loopback interface view.
Examples # Configure the network type of the Ethernet1/0 interface as P2P.
<Sysname> system-view
[Sysname] interface ethernet 1/0
[Sysname-Ethernet1/0] isis enable
[Sysname-Ethernet1/0] isis circuit-type p2p