Configuring The Is Level And Circuit Level; Configuring The Network Type Of An Interface As P2P - HPE FlexNetwork HSR6800 Configuration Manual

Configuring the IS level and circuit level

If only one area exists, perform the following operations:
•
Configure the IS level of all routers as Level-1 or Level-2 rather than different levels because
the routers do not need to maintain two identical LSDBs.
•
Configure the IS level as Level-2 on all routers in an IP network for good scalability.
For an interface of a Level-1 (or Level-2) router, the circuit level can only be Level-1 (or Level-2). For
an interface of a Level-1-2 router, the default circuit level is Level-1-2; if the router only needs to form
Level-1 (or Level-2) neighbor relationships, configure the circuit level for its interfaces as Level-1 (or
Level-2) to limit neighbor relationship establishment.
To configure the IS level and circuit level:
Step
Enter system view.
1.
Enter IS-IS view.
2.
Specify the IS level.
3.
Return to system view.
4.
Enter interface view.
5.
Specify the circuit level.
6.

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, but P2P interfaces
on a network do not need to elect the 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.
To configure the network type of an interface:
Step
Enter system view.
1.
Enter interface view.
2.
Configure the network type for the
3.
interface as P2P.
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
is-level { level-1 | level-1-2 |
level-2 }
quit
interface interface-type
interface-number
isis circuit-level [ level-1 |
level-1-2 | level-2 ]
Command
system-view
interface interface-type
interface-number
isis circuit-type p2p
134
Remarks
N/A
N/A
Optional.
The default is Level-1-2.
N/A
N/A
Optional.
An interface can establish either the
Level-1 or Level-2 adjacency by
default.
Remarks
N/A
N/A
Optional.
By default, the network
type of an interface
depends on the physical
media.