Operation Manual – IPv4 Routing
H3C S3610&S5510 Series Ethernet Switches
Chapter 4 IS-IS Configuration
4-21
You can reference a routing policy to specify a priority for specific routes. For
information about routing policy, refer to
Routing Policy Configuration
.
Follow these steps to configure the IS-IS protocol priority.
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter IS-IS view
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
––
Specify a priority for
IS-IS
preference
{
route-policy
route-policy-name
|
preference
} *
Optional
15 by default
4.4.3 Configuring IS-IS Link Cost
There are three ways to configure the interface link cost, in descending order of
interface costs:
z
Interface cost: Assign a link cost for a single interface.
z
Global cost: Assign a link cost for all interfaces.
z
Automatically calculated cost: Calculate the link cost based on the bandwidth of an
interface.
Interface cost defaults to 10.
I. Configure an IS-IS cost for an interface
Follow these steps to configure an interface’s cost:
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter IS-IS view
isis
[
process-id
]
[
vpn-instance
vpn-instance-name
]
––
Specify a cost style
cost-style
{
narrow
|
wide
|
wide-compatible
|
{
compatible
|
narrow-compatible
}
[
relax-spf-limit
] }
Optional
narrow
by default
Return to system view
quit
––
Enter interface view
interface
interface-type
interface-number
Required
Specify a cost for the
interface
isis cost
value
[
level-1
|
level-2
]
Optional
Not specified by
default
