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vxlan: add external bgp router documentation

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Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
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Alexandre Derumier 2019-09-09 07:46:08 +02:00 committed by Thomas Lamprecht
parent 2b7934c19a
commit 3e25ae6172
1 changed files with 88 additions and 4 deletions
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92
vxlan-and-evpn.adoc
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@ -1135,8 +1135,8 @@ line vty
!
----
VXLAN layer3 routing with anycast gateway + routing to outside with external router
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
VXLAN layer3 routing with anycast gateway + routing to outside with external router with static default gw
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Routing to outside need the symmetric model.
1 gateway node
@ -1952,6 +1952,92 @@ iface vmbr0 inet static
----
gateway node(s) with a upstream bgp router
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Setup is almost the same than with a static gateway, but we'll connect to an upstream bgp router.
example with node1 as gateway (192.168.0.1) for evpn-bgp, and an upstream bgp router (running frr too) 192.168.0.254.
* node1
frr.conf
----
vrf vrf1
vni 4000
exit-vrf
!
router bgp 1234
bgp router-id 192.168.0.1
no bgp default ipv4-unicast
no bgp default ipv6-unicast
coalesce-time 1000
neighbor 192.168.0.2 remote-as 1234
neighbor 192.168.0.3 remote-as 1234
neighbor 192.168.0.254 remote-as external
!
address-family ipv4 unicast
import vrf vrf1
neighbor 192.168.0.254 activate
exit-address-family
!
address-family ipv6 unicast
import vrf vrf1
neighbor 192.168.0.254 activate
exit-address-family
!
address-family l2vpn evpn
neighbor 192.168.0.1 activate
neighbor 192.168.0.2 activate
neighbor 192.168.0.254 activate
advertise-all-vni
exit-address-family
!
router bgp 1234 vrf vrf1
!
address-family ipv4 unicast
redistribute connected
exit-address-family
!
address-family ipv6 unicast
redistribute connected
exit-address-family
!
address-family l2vpn evpn
default-originate ipv4
default-originate ipv6
exit-address-family
!
line vty
!
----
* bgp router
frr.conf
----
ip prefix-list NO32 seq 10 permit 0.0.0.0/0 ge 8 le 24
ip prefix-list NO32 seq 20 deny any
!
router bgp 25253
bgp router-id 192.168.0.254
bgp bestpath as-path multipath-relax
neighbor 192.168.0.1 remote-as external
neighbor 192.168.0.1 capability extended-nexthop
!
address-family ipv4 unicast
neighbor 192.168.0.1 default-originate
neighbor 192.168.0.1 prefix-list NO32 in #don't import /32 route from evpn
exit-address-family
!
address-family ipv6 unicast
neighbor 192.168.0.1 default-originate
neighbor 192.168.0.1 prefix-list NO32 in #don't import /32 route from evpn
exit-address-family
!
!
---
Route Reflectors
^^^^^^^^^^^^^^^^
If you have a lot of proxmox nodes, or multiple proxmox clusters, you may want
@ -2028,5 +2114,3 @@ router bgp 1234
exit-address-family
!
----
#TODO : Documentation with bgp upstream router.