Enabling Is-Is; Setting The Is Level And Circuit Level; Configuring P2P Network Type For An Interface - HP FlexFabric 12900E Series Configuration Manual

Enabling IS-IS

Step
1. Enter system view.
2. Enable IS-IS and enter IS-IS
view.
3. Assign a NET.
4. Return to system view.
5. Enter interface view.
6. Enable IS-IS on the interface.

Setting the IS level and circuit level

Follow these guidelines when you configure the IS level for routers in only one area:
•
Set the IS level of all routers to Level-1 or Level-2 rather than different levels because the
routers do not need to maintain two identical LSDBs.
•
Set the IS level to 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, set the circuit level for its interfaces to Level-1 or Level-2.
This will 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 P2P network type for an interface

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. However, P2P
interfaces on a network do not need to elect the DIS, and have a different LSDB synchronization
mechanism.
Command
system-view
isis [ process-id
[ vpn-instance
vpn-instance-name ]
network-entity net
quit
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 ]
141
Remarks
N/A
]
By default, IS-IS is disabled.
By default, NET is not assigned.
N/A
N/A
By default, IS-IS is disabled.
Remarks
N/A
N/A
By default, the IS level is Level-1-2.
N/A
N/A
By default, an interface
establish either the Level-1 or
Level-2 adjacency.
can