In this configuration example, the DCGW PE2 re-exports EVPN-IFF routes into EVPN-IFF (leaked) routes and EVPN-IFL routes. The BGP path attributes are propagated as shown in Figure: Propagation of BGP path attributes for EVPN-IFF. As described in BGP path attribute propagation, EVPN extended communities, BGP encapsulation extended community and route targets are not propagated but instead, re-originated.
Figure: Propagation of BGP path attributes for EVPN-IFF
The following is an example configuration for PE4 and PE2 (PE1 has equivalent configuration as PE4).
// PE4 services for EVPN-IFF
A:PE-4>config>service>vprn# /configure service vprn 93
A:PE-4>config>service>vprn# info
----------------------------------------------
router-id 4.4.4.4
autonomous-system 64500
interface "evi-95" create
address 94.0.0.254/24
vrrp 1 owner passive
backup 94.0.0.254
exit
vpls "evi-95"
exit
exit
interface "evi-94" create
vpls "evi-94"
evpn-tunnel
exit
exit
bgp
min-route-advertisement 1
group "pe-ce"
family ipv4
type external
export "export-al-to-vnf"
neighbor 94.0.0.1
local-as 64500
peer-as 94
exit
exit
no shutdown
exit
no shutdown
----------------------------------------------
A:PE-4>config>service>vprn# /configure service vpls 95
A:PE-4>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
exit
stp
shutdown
exit
sap 1/1/c1/1:90 create
no shutdown
exit
no shutdown
----------------------------------------------
A:PE-4>config>service>vpls# /configure service vpls 94
A:PE-4>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
exit
vxlan instance 1 vni 94 create
exit
bgp
exit
bgp-evpn
no mac-advertisement
ip-route-advertisement
evi 94
vxlan bgp 1 vxlan-instance 1
no shutdown
exit
exit
stp
shutdown
exit
no shutdown
----------------------------------------------
// PE2 config
A:PE-2# configure service vprn 90
A:PE-2>config>service>vprn# info
----------------------------------------------
interface "evi-91" create
vpls "evi-91"
evpn-tunnel
exit
exit
bgp-evpn
mpls
auto-bind-tunnel
resolution any
exit
route-distinguisher 192.0.2.2:90
vrf-export "leak-color-51-into-93"
vrf-target import target:64500:90
no shutdown
exit
exit
no shutdown
----------------------------------------------
A:PE-2>config>service>vprn# /configure service vpls 91
A:PE-2>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
exit
vxlan instance 1 vni 91 create
exit
bgp
exit
bgp-evpn
no mac-advertisement
ip-route-advertisement
evi 91
vxlan bgp 1 vxlan-instance 1
no shutdown
exit
exit
stp
shutdown
exit
no shutdown
----------------------------------------------
A:PE-2>config>service>vpls# /configure service vprn 93
A:PE-2>config>service>vprn# info
----------------------------------------------
interface "evi-94" create
vpls "evi-94"
evpn-tunnel
exit
exit
bgp-evpn
mpls
auto-bind-tunnel
resolution any
exit
route-distinguisher 192.0.2.2:93
vrf-export "leak-color-51-into-90"
vrf-target import target:64500:93
no shutdown
exit
exit
no shutdown
----------------------------------------------
A:PE-2>config>service>vprn# /configure service vpls 94
A:PE-2>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
exit
vxlan instance 1 vni 94 create
exit
bgp
exit
bgp-evpn
no mac-advertisement
ip-route-advertisement
evi 94
vxlan bgp 1 vxlan-instance 1
no shutdown
exit
exit
stp
shutdown
exit
no shutdown
----------------------------------------------
A:PE-2>config>service>vpls# /show router policy "leak-color-51-into-90"
entry 10
from
community "color-51"
exit
action accept
community add "RT64500:90" "RT64500:93"
exit
exit
default-action accept
community add "RT64500:93"
exit
A:PE-2>config>service>vpls# /show router policy "leak-color-51-into-93"
entry 10
from
community "color-51"
exit
action accept
community add "RT64500:90" "RT64500:93"
exit
exit
default-action accept
community add "RT64500:90"
exit