Configuring Is-Is Routing Information Control - 3Com Switch 4800G 24-Port Configuration Manual

342 C 29: IS-IS C
HAPTER
Configuring IS-IS
Routing Information
Control
Configuration
Prerequisites
Specifying a Priority for
IS-IS
ONFIGURATION
To do...
Assign a network entity title
(NET)
Specify a router type
Return to system view
Enter interface view
Enable an IS-IS process on the
interface
Specify network type for the
interface as P2P
Specify the adjacency type for
the interface
n
If a router's type is configured as Level-1 or Level-2, the type of interfaces must be
the same, which cannot be changed using the isis circuit-level command.
However, an interface's type can be changed with this command when the
router's type is Level-1-2 for the establishment of a specific level adjacency.
Before the configuration, accomplish the following tasks first:
Configure an IP address on each interface, and make sure all nodes are
■
reachable.
Configure basic IS-IS functions
■
A router can run multiple routing protocols. When a route to the same destination
is learned by multiple routing protocols, the one with the highest protocol priority
wins. You can reference a routing policy to specify a priority for specific routes. For
information about routing policy, refer to "Routing Policy Configuration" on page
415.
Follow these steps to configure the IS-IS protocol priority.
To do...
Enter system view
Enter IS-IS view
Specify a priority for IS-IS
Use the command...
network-entity net
is-level { level-1 | level-1-2 |
level-2 }
quit
interface interface-type
interface-number
isis enable [ process-id ]
isis circuit-type p2p
isis circuit-level [ level-1 |
level-1-2 | level-2 ]
Use the command...
system-view
isis [ process-id ]
preference { route-policy
route-policy-name | preference } *
Remarks
Required
Not assigned by default
Optional
The default type is level-1-2.
--
--
Required
Disabled by default
Optional
By default, the network type
of an interface depends on
the physical media. The
network type of a VLAN
interface is broadcast.
Optional
The default type is level-1-2.
Remarks
--
--
Optional
15 by default