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Configuring an IS-IS cost for an interface
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IS-IS view.
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
N/A
3.
(Optional.) Specify an
IS-IS cost style.
cost-style
{
narrow
|
wide
|
wide-compatible
| {
compatible
|
narrow-compatible
}
[
relax-spf-limit
] }
By default, the IS-IS cost type
is
narrow
.
4.
Return to system view.
quit
N/A
5.
Enter interface view.
interface
interface-type interface-number
N/A
6.
(Optional.) Specify a cost
for the IS-IS interface.
isis cost
value
[
level-1
|
level-2
]
By default, no cost for the
interface is specified.
Configuring a global IS-IS cost
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IS-IS view.
isis
[
process-id
] [
vpn-instance
vpn-instance-name
] N/A
3.
(Optional.) Specify
an IS-IS cost style.
cost-style
{
narrow
|
wide
|
wide-compatible
|
{
compatible
|
narrow-compatible
}
[
relax-spf-limit
] }
By default, the IS-IS cost style
is
narrow
.
4.
Specify a global
IS-IS cost.
circuit-cost
value
[
level-1
|
level-2
]
By default, no global cost is
specified.
Enabling automatic IS-IS cost calculation
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IS-IS view.
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
N/A
3.
Specify an IS-IS cost style.
cost-style
{
wide
|
wide-compatible
} By default, the IS-IS cost is
narrow
.
4.
Enable automatic IS-IS cost
calculation.
auto-cost enable
By default, automatic IS-IS cost
calculation is disabled.
5.
(Optional.) Configure a
bandwidth reference value
for automatic IS-IS cost
calculation.
bandwidth-reference
value
The default setting is 100 Mbps.
Specifying a preference for IS-IS
If multiple routing protocols find routes to the same destination, the route found by the routing protocol
that has the highest preference is selected as the optimal route.
Perform this task to assign a preference to IS-IS directly or by using a routing policy. For more information
about the routing policy, see "Configuring routing policies."
