Configuring The Is Level And Circuit Level; Configuring The Network Type Of An Interface As P2P - HP MSR2000 series Configuration Manual

Step
5. Enter interface view.
6. Enable an IS-IS process on the
interface.

Configuring the IS level and circuit level

If only one area is available, HP recommends you to 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 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, then 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
1. Enter system view.
2. Enter IS-IS view.
3. Specify the IS level.
4. Return to system view.
5. Enter interface view.
6. Specify the circuit level.

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:
Command
interface interface-type
interface-number
isis enable [ process-id ]
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 ]
142
Remarks
N/A
Disabled by default.
Remarks
N/A
N/A
Optional.
The default is Level-1-2.
N/A
N/A
Optional.
By default, an interface can establish
the Level-1 or Level-2 adjacency.