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Parameters
as-path-number
: Specifies a number for the AS path list, in the range of 1 to 256.
deny
: Specifies the match mode for the AS path list as
deny
.
permit
: Specifies the match mode for the AS path list as
permit
.
regular-expression
: Specifies an AS path regular expression, a string of 1 to 63 characters.
Usage guidelines
BGP routing updates contain an AS_PATH attribute field that identifies the ASs through which the routes
have passed. An AS path regular expression, for example, ^200. *100$, matches the AS_PATH
attribute that starts with AS 200 and ends with AS 100. For the meanings of special characters used in
regular expressions, see
Fundamentals Configuration Guide
.
Examples
# Create AS path list 1 to permit routes whose AS_PATH attribute starts with 10.
<Sysname> system-view
[Sysname] ip as-path 1 permit ^10
Related commands
•
apply as-path
•
display ip as-path
•
if-match ip as-path
ip community-list
Use
ip community-list
to configure a community list entry.
Use
undo ip community-list
to remove a community list or entry.
Syntax
ip community-list
{
basic-comm-list-num
|
basic
basic-comm-list-name
} {
deny
|
permit
}
[
community-number
&<1-32> |
aa:nn
&<1-32>
] [
internet
|
no-advertise
|
no-export
|
no-export-subconfed
] *
undo ip community-list
{
basic-comm-list-num
|
basic
basic-comm-list-name
} [
deny
|
permit
]
[
community-number
&<1-32> |
aa:nn
&<1-32>
] [
internet
|
no-advertise
|
no-export
|
no-export-subconfed
] *
ip community-list
{
adv-comm-list-num
|
advanced
adv-comm-list-name
} {
deny
|
permit
}
regular-expression
undo ip community-list
{
adv-comm-list-num
|
advanced
adv-comm-list-name
} [
deny
|
permit
]
[
regular-expression
]
Default
No community list is configured.
Views
System view
Predefined user roles
network-admin
