...
The latter method is much faster and less resource-intensive than the string matching approach.
Supported operators:
| Operator | Description | Example | Example Explained | Example Matches |
|---|---|---|---|---|
| ^ | Represents the beginning of the path | ^1234 | will math AS-path starting with ASN 1234 | |
| $ | Represents the end of the path | 1234$ | will match AS-path of origin ASN 1234 | |
| * | Zero or more occurrences of the listed ASN | ^1234*$ | will math Null as-path or as-path where ASN 1234 may or may not appear multiple times | Math: 1234 1234 1234 1234 Null path No Match: 1234 5678 |
| + | One or more occurrences of the listed ASN | 1234+ | will match AS-path where ASN 1234 appears at least once | Match: 1234 3 1234 6 No match: 12345 678 |
| - | Represents the range | |||
| ? | Zero or one occurrence of the listed ASN | ^1234? 5678 | will match AS-path that may or may not start with ASN 1234 appearing once. | Match: 5678 1234 5678 No match: 1234 1234 5678 12345 5678 |
| . | One occurrence of any ASN | ^.$ | will match any AS-path with length of one. | Match: 12345 45678 No match: 1234 5678 |
| | | Match one of two ASNs on each side | ^(1234|5678) | will match AS-path starting with ASN 1234 or 5678 | Match: 1234 5678 1234 5678 No Match: 91011 |
[ ] | Represents the set of AS numbers where one AS number from the list must match | ^[1234 5678 1-100] | will match AS-path that starts with 1234 or 5678 or from the range of 1 to 100 | Match: 1234 99 5678 No Match: 101 |
() | Group of regexp terms to match | ^(1234$|5678) | will match AS-path that starts and ends with 1234 or AS-path that starts with 5678 | Match: 1234 5678 9999 No Match: 1234 5678 |
| Code Block | ||||
|---|---|---|---|---|
| ||||
[matcher] (all can be prefixed with 'not' to negate
bgp-communities|bgp-communities-ext|bgp-communities-large
equal|any|includes|subset
{inline set}
equal-set|any-set|includes-set|subset-set
{set name}
any-regexp|subset-regexp
{regexp}
comment
text|find|regexp
{string}
chain
{chain name}
vrf
{vrf}
rtab
{rtab}
gw-interface
{interface}
gw-check
none|arp|icmp|bfd|bfd-mh
afi
ipv4|ipv6|l2vpn|l2vpn-cisco|vpnv4|vpnv6
,...
protocol
connected|static|bgp|ospf|rip|dhcp|fantasy|modem|vpn
,...
bpg-origin
igp|egp|incomplete
,...
bgp-as-path
{regexp}
rpki
valid|invalid|unknown
ospf-type
intra|inter|ext1|ext2|nssa1|nssa2
ospf-ext-type
type1|type2
[num prop readable]
in
{int..int}|{int-int}
==|!=|<=|>=|<|>
{int}
[num prop readable]
[prfx prop readable]
!=|==|in
{address 46/}
[flag prop readable]
[block]
if ([matcher] &&/|| ...) { [block] } [ else {[block]} ]
accept|reject|return
jump {chain name}
unset
pref-src|bgp-med|bgp-out-med|bgp-local-pref
append
comment
{string}
bgp-communities|bgp-communities-ext|bgp-communities-large
{inline community set}|{set name}
filter
bgp-communities|bgp-communities-ext|bgp-communities-large
regexp
{regexp}
{inline community set}|{set name}
delete
bgp-communities
regexp
{regexp}
{inline community set}|{set name}
wk|other
,...
bgp-communities-ext
regexp
{regexp}
{inline community set}|{set name}
rt|soo|other
,...
bgp-communities-large
regexp
{regexp}
{inline community set}|{set name}
all
set
[num prop writable]
[+|-][num prop readable]|[num prop writable]
gw
{address 46i}
gw-interface
{interface}
gw-check
none|arp|icmp|bfd|bfd-mh
pref-src
{address 46}
bgp-origin
igp|egp|incomplete
ospf-ext-fwd
{address 46}
ospf-ext-type
type1|type2
comment
{string}
bgp-communities
{inline community set}|{set name}
bgp-communities-ext
{inline community set}|{set name}
bgp-communities-large
{inline community set}|{set name}
rpki-verify
{rpki group name}
|
...