Configuring Basic Is-Is; Configuration Prerequisites; Enabling Is-Is; Configuring The Is Level And Circuit Level - HP 6125XLG Configuration Manual

Tasks at a glance
(Optional.)
•
Configuring neighbor relationship authentication
•
Configuring area authentication
•
Configuring routing domain authentication
(Optional.)
(Optional.)
(Optional.)

Configuring basic IS-IS

Configuration prerequisites

Before the configuration, complete the following tasks:
• Configure the link layer protocol.
Configure IP addresses for interfaces to ensure IP connectivity between neighboring nodes.
•

Enabling IS-IS

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

Configuring the IS level and circuit level

Follow these guidelines when you configure the IS level for routers in only one area:
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.
Enhancing IS-IS network
Configuring IS-IS GR
Configuring BFD for IS-IS
Configuring IS-IS FRR
security:
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
network-entity net
quit
interface interface-type
interface-number
isis enable [ process-id ]
116
Remarks
N/A
By default, the IS-IS process is
disabled.
By default, NET is not assigned.
N/A
N/A
By default, no IS-IS process is
enabled.