ELTEX ESR-10 - PBR Routing Policy Configuration; Configuration Algorithm of Route-Map for BGP

ESR series service routers.ESR-Series. User manual
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11.7 PBR routing policy configuration
11.7.1 Configuration algorithm of Route-map for BGP
Route-maps may serve as filters processing routing information when it is received from or sent to the
neighboring device. Processing may include filtering based on various route criteria and setting attributes
(MED, AS-PATH, community, LocalPreference, etc.) for the respective routes.
Step Description Command Keys
1 Create a route map for IP routes
filtering and modification.
esr(config)# route-map
<NAME>
<NAME> – router map name, set by the
string of up to 31 characters.
2 Create a route map rule. esr(config-route-map)#
rule <ORDER>
<ORDER> – rule number, takes values of
[1..10000].
3 Specify the action that should be
applied for routing information.
esr(config-route-map-
rule)# action <ACT>
<ACT> – allocated action:
permit – routing information
reception or advertising is permitted;
deny – denied.
4 Set BGPAS-Path attribute value in
the route for which the rule should
work (optional).
esr(config-route-map-
rule)# match as-path
[begin | end | contain] <AS-
PATH>
<AS-PATH> – list of stand alone system
numbers, defined as AS,AS,AS, takes values
of [1..4294967295]. Optional parameters:
begin – attribute value begins with
the specified AS numbers;
end – attribute value ends with the
specified AS numbers;
contain – attribute value includes the
specified AS numbers list.
5 Set BGPCommunity attribute
value for which the rule should
work (optional).
esr(config-route-map-
rule)# match community
<COMMUNITY-LIST>
<COMMUNITY-LIST> – community list,
defined as AS:N,AS:N, takes values of
[1..4294967295]. Up to 64 communities can
be specified.
6 BGPExtendedCommunity attribute
value for which the rule should
work (optional).
esr(config-route-map-
rule)# match
extcommunity
<EXTCOMMUNITY-LIST>
<EXTCOMMUNITY-LIST> – extcommunity
list, defined as KIND:AS:N, KIND:AS:N,
where
KIND – extcommunity type:
rt(Route Target);
ro (Route Origin);
N – extcommunity number, takes values of
[1..65535].
7 Set IP addresses profile including
destination subnet values in the
route (optional).
esr(config-route-map-
rule)# match ip address
object-group <OBJ-
GROUP-NETWORK-NAME>
<OBJ-GROUP-NETWORK-NAME> – name of
the IP addresses profile that includes
destination subnets prefixes, set by the
string of up to 31 characters.