H3C Technologies H3C S12500 Series Switches - Manual (Page 164)

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Step Command Remarks
4. Return to system view. quit N/A
5. Enter interface view.
interface interface-type
interface-number
N/A
6. Specify the circuit level.
isis circuit-level [ level-1 | level-1-2
| level-2 ]
Optional.
By default, an interface can establish
either the Level-1 or Level-2
adjacency.
Configuring the network type of an interface as P2P
Perform this task only for a broadcast network that has up to two attached routers.
Interfaces with different network types operate differently. For example, broadcast interfaces on a
network must elect the DIS and flood CSNP packets to synchronize the LSDBs, while P2P interfaces on a
network need not elect the DIS, and have a different LSDP synchronization mechanism.
If there are only two routers 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.
To configure the network type of an interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure the network type for the
interface as P2P.
isis circuit-type p2p
Optional.
By default, the network type of
an interface depends on the
physical media. The network
type of a VLAN interface is
broadcast.
Configuring IS-IS routing information control
Perform the tasks in this section to affect IS-IS route selection.
Configuration prerequisites
Before the configuration, complete the following tasks:
• Configure network layer addresses for interfaces to ensure IP connectivity between neighboring
nodes.
• Enable IS-IS.