409
Step Command
Remarks
6.
Assign a convergence priority
to specific IPv6 IS-IS routes.
•
prefix-priority
{
critical
|
high
|
medium
} {
prefix-list
prefix-list-name
|
tag
tag-value
}
•
prefix-priority route-policy
route-policy-name
Use either command.
By default, IPv6 IS-IS routes, except
IPv6 IS-IS host routes, have the low
convergence priority.
Setting the LSDB overload bit
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
|
compatible
}
By default, the IS-IS cost style is
narrow
.
4.
Enter IPv6 address family
view.
address-family ipv6
[
unicast
]
N/A
5.
Enable IPv6 IS-IS MTR.
multi-topology
[
compatible
]
By default, IPv6 IS-IS MTR is
disabled.
6.
Set the overload bit.
set-overload
[
on-startup
[ [
start-from-nbr
system-id
[
timeout1
[
nbr-timeout
] ] ] |
timeout2
] [
allow
{
external
|
interlevel
} * ]
By default, the overload bit is not
set.
Configuring a tag value on an interface
Perform this task when the link cost style is
wide
,
wide-compatible
, or
compatible
.
When IS-IS advertises a prefix with a tag value, IS-IS adds the tag to the IP reachability information TLV
of the prefix.
To configure a tag value on an interface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A
3.
Configure a tag value on the
interface.
isis ipv6 tag
tag
By default, no tag value is
configured on an interface.
