Assuming these are the summarized prefixes that you want to advertise via BGP.
111.111.0.0/16
222.222.0.0/16
Juniper:
routing-options {graceful-restart;
router-id 1.1.1.1;
autonomous-system 11111;
protocols {
bgp {
group RR-IBGP {
type internal;
description RR-IPv4;
local-address 192.168.100.6;
family inet {
unicast;
}
authentication-key "$1$N3tBioBwfdFsFVwgoGDh.3C0oL"; ## SECRET-DATA
export bgp-statement;
neighbor 192.168.100.5 {
description iBGP to Route Reflector;
}
policy-statement bgp-statement {
term SITE1 {
from {
route-filter 111.111.0.0/16 exact;
route-filter 222.222.0.0/16 exact;
}
then {
community add SITE1;
accept;
}
community SITE1 members 12345:111;
In display set:
set routing-options graceful-restart
set routing-options router-id 1.1.1.1
set routing-options autonomous-system 11111
set protocols bgp group RR-IBGP type internal
set protocols bgp group RR-IBGP description RR-IPv4
set protocols bgp group RR-IBGP local-address 192.168.100.6
set protocols bgp group RR-IBGP family inet unicast
set protocols bgp group RR-IBGP authentication-key "$1$N3tBioBwfdFsFVwgoGDh.3C0oL"
set protocols bgp group RR-IBGP export bgp-statement
set protocols bgp group RR-IBGP neighbor 192.168.100.5 description iBGP to Route Reflector
set policy-options policy-statement bgp-statement term SB from route-filter 111.111.0.0/16 exact
set policy-options policy-statement bgp-statement term SB from route-filter 222.222.0.0/16 exact
set policy-options policy-statement bgp-statement term SITE1 then community add SB
set policy-options policy-statement bgp-statement term SITE1 then accept
set policy-options community SITE1 members 12345:111
Cisco:
prefix-set SITE1111.111.0.0/16,
222.222.0.0/16
end-set
route-policy bgp-statement
if destination in SITE1 then
set community (12345:111)
endif
end-policy
router bgp 11111
nsr
bgp router-id 1.1.1.1
bgp graceful-restart
address-family ipv4 unicast
network 111.111.0.0/16
network 222.222.0.0/16
neighbor-group RR-IBG
remote-as 11111
password encrypted 2185073C7B74154C
description RR IBGP GROUP IPV4
update-source Loopback0
address-family ipv4 unicast
soft-reconfiguration inbound
!
neighbor 192.168.100.5
use neighbor-group RR-IBG
description RR-IPv4
address-family ipv4 unicast
route-policy iBGP-policy-in in
route-policy bgp-statement out
In Formal:
prefix-set SITE1
111.111.0.0/16,
222.222.0.0/16,
end-set
route-policy bgp-statement
if destination in SITE1 then
set community (12345:111)
endif
end-policy
router bgp 11111 nsr
router bgp 11111 bgp router-id 1.1.1.1
router bgp 11111 bgp graceful-restart
router bgp 11111 address-family ipv4 unicast
router bgp 11111 address-family ipv4 unicast network 111.111.0.0/16
router bgp 11111 address-family ipv4 unicast network 222.222.0.0/16
router bgp 11111 neighbor-group RR-IBG
router bgp 11111 neighbor-group RR-IBG remote-as 11111
router bgp 11111 neighbor-group RR-IBG password encrypted 2185073C7B74154C
router bgp 11111 neighbor-group RR-IBG description RR IBGP GROUP IPV4
router bgp 11111 neighbor-group RR-IBG update-source Loopback0
router bgp 11111 neighbor-group RR-IBG address-family ipv4 unicast
router bgp 11111 neighbor-group RR-IBG address-family ipv4 unicast soft-reconfiguration inbound
router bgp 11111 neighbor 192.168.100.5
router bgp 11111 neighbor 192.168.100.5 use neighbor-group RR-IBG
router bgp 11111 neighbor 192.168.100.5 description RR-IPv4
router bgp 11111 neighbor 192.168.100.5 address-family ipv4 unicast
router bgp 11111 neighbor 192.168.100.5 address-family ipv4 unicast route-policy iBGP-policy-in in
router bgp 11111 neighbor 192.168.100.5 address-family ipv4 unicast route-policy bgp-statement out
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