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policy: T4414: Add route-map "as-path prepend last-as x" option

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This commit is contained in:
Christian Poessinger 2022-05-05 19:03:04 +02:00
parent cd51af8ad1
commit c57facdcc3
3 changed files with 18 additions and 13 deletions
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2
docs/configexamples/ha.rst
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@ -563,7 +563,7 @@ it is not 203.0.113.0/24.
set policy route-map BGPOUT rule 10000 action 'deny'
set policy route-map BGPPREPENDOUT description 'BGP Export Filter'
set policy route-map BGPPREPENDOUT rule 10 action 'permit'
set policy route-map BGPPREPENDOUT rule 10 set as-path-prepend '65551 65551 65551'
set policy route-map BGPPREPENDOUT rule 10 set as-path prepend '65551 65551 65551'
set policy route-map BGPPREPENDOUT rule 10 match ip address prefix-list 'BGPOUT'
set policy route-map BGPPREPENDOUT rule 10000 action 'deny'

2
docs/configuration/policy/examples.rst
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@ -8,7 +8,7 @@ BGP Example
# Create policy
set policy route-map setmet rule 2 action 'permit'
set policy route-map setmet rule 2 set as-path-prepend '2 2 2'
set policy route-map setmet rule 2 set as-path prepend '2 2 2'
# Apply policy to BGP
set protocols bgp local-as 1

27
docs/configuration/policy/route-map.rst
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@ -149,15 +149,20 @@ Route Map
BGP aggregator attribute: AS number or IP address of an aggregation.
.. cfgcmd:: set policy route-map <text> rule <1-65535> set as-path-exclude
.. cfgcmd:: set policy route-map <text> rule <1-65535> set as-path exclude
<text>
Remove ASN(s) from a BGP AS-path attribute. For example "456 64500 45001".
Drop AS-NUMBER from the BGP AS path.
.. cfgcmd:: set policy route-map <text> rule <1-65535> set as-path-prepend
.. cfgcmd:: set policy route-map <text> rule <1-65535> set as-path prepend
<text>
Prepend string for a BGP AS-path attribute. For example "64501 64501".
Prepend the given string of AS numbers to the AS_PATH of the BGP path's NLRI.
.. cfgcmd:: set policy route-map <text> rule <1-65535> set as-path
prepend-last-as <n>
Prepend the existing last AS number (the leftmost ASN) to the AS_PATH.
.. cfgcmd:: set policy route-map <text> rule <1-65535> set atomic-aggregate
@ -211,8 +216,8 @@ Route Map
peer-address
Set the BGP nexthop address to the address of the peer. For an incoming
route-map this means the ip address of our peer is used. For an
outgoing route-map this means the ip address of our self is used to
route-map this means the ip address of our peer is used. For an
outgoing route-map this means the ip address of our self is used to
establish the peering with our neighbor.
.. cfgcmd:: set policy route-map <text> rule <1-65535> set ipv6-next-hop
@ -224,17 +229,17 @@ Route Map
peer-address
Set the BGP nexthop address to the address of the peer. For an incoming
route-map this means the ip address of our peer is used. For an
outgoing route-map this means the ip address of our self is used to
route-map this means the ip address of our peer is used. For an
outgoing route-map this means the ip address of our self is used to
establish the peering with our neighbor.
.. cfgcmd:: set policy route-map <text> rule <1-65535> set ipv6-next-hop
prefer-global
For Incoming and Import Route-maps if we receive a v6 global and v6 LL
address for the route, then prefer to use the global address as the
nexthop.
.. cfgcmd:: set policy route-map <text> rule <1-65535> set large-community
<text>