VXLAN Bridging with BGP EVPN - Step-By-Step Configuration

Рет қаралды 917

2 ай бұрын

In this video, I have demonstrated how VXLAN bridging works with BGP EVPN. A detailed step by step demo on Arista switches.
If you want the pdf of the slides shown in this video, email me at ccie.ots@gmail.com
For VXLAN Bridging packet walk, watch this video:
• VLAN Switching vs VXLA...
12:16 Configuration Steps
16:23 Configuration on the CLI
===Configurations used in this video===
===spine1===
!Underlay
ip routing
router ospf 1
interface Loopback0
ip address 172.16.0.3/32
ip ospf area 0.0.0.0
interface Ethernet1
no switchport
ip address 172.16.255.0/31
ip ospf area 0.0.0.0
no shutdown
interface Ethernet3
no switchport
ip address 172.16.255.2/31
ip ospf area 0.0.0.0
no shutdown
!Overlay
router bgp 65000
router-id 172.16.0.3
no bgp default ipv4-unicast
neighbor 172.16.0.1 remote-as 65000
neighbor 172.16.0.1 update-source Loopback0
neighbor 172.16.0.1 description cleaf1
neighbor 172.16.0.1 route-reflector-client
neighbor 172.16.0.1 send-community
neighbor 172.16.0.2 remote-as 65000
neighbor 172.16.0.2 update-source Loopback0
neighbor 172.16.0.2 description bleaf1
neighbor 172.16.0.2 route-reflector-client
neighbor 172.16.0.2 send-community
address-family evpn
neighbor 172.16.0.1 activate
neighbor 172.16.0.2 activate
===cleaf1===
!Underlay
ip routing
router ospf 1
interface Loopback0
ip address 172.16.0.1/32
ip ospf area 0.0.0.0
interface Ethernet1
no switchport
ip address 172.16.255.1/31
ip ospf area 0.0.0.0
no shutdown
!Overlay
router bgp 65000
router-id 172.16.0.1
no bgp default ipv4-unicast
neighbor 172.16.0.3 remote-as 65000
neighbor 172.16.0.3 update-source Loopback0
neighbor 172.16.0.3 description spine1
neighbor 172.16.0.3 send-community
address-family evpn
neighbor 172.16.0.3 activate
interface Vxlan1
vxlan source-interface Loopback0
!Layer2 VPN - vlan10
router bgp 65000
vlan 10
rd 172.16.0.1:10000
route-target both 10000:10000
redistribute learned
interface Vxlan1
vxlan vlan 10 vni 10000
vlan 10
interface Ethernet5
switchport trunk allowed vlan 10
switchport mode trunk
no shutdown
===bleaf1===
!Underlay
ip routing
router ospf 1
interface Loopback0
ip address 172.16.0.2/32
ip ospf area 0.0.0.0
interface Ethernet1
no switchport
ip address 172.16.255.3/31
ip ospf area 0.0.0.0
no shutdown
!Overlay
router bgp 65000
router-id 172.16.0.2
no bgp default ipv4-unicast
neighbor 172.16.0.3 remote-as 65000
neighbor 172.16.0.3 update-source Loopback0
neighbor 172.16.0.3 description spine1
neighbor 172.16.0.3 send-community
address-family evpn
neighbor 172.16.0.3 activate
interface Vxlan1
vxlan source-interface Loopback0
!Layer2 VPN - vlan10
router bgp 65000
vlan 10
rd 172.16.0.2:10000
route-target both 10000:10000
redistribute learned
interface Vxlan1
vxlan vlan 10 vni 10000
vlan 10
interface Ethernet5
switchport trunk allowed vlan 10
switchport mode trunk
no shutdown
===server1===
!Layer2 VPN - vlan10
vlan 10
interface vlan10
ip address 172.16.10.1/24
interface Ethernet1
switchport trunk allowed vlan 10
switchport mode trunk
no shutdown
===server2===
!Layer2 VPN - vlan10
vlan 10
interface vlan10
ip address 172.16.10.2/24
interface Ethernet1
switchport trunk allowed vlan 10
switchport mode trunk
no shutdown
===Verification Commands===
Step 1 (Underlay):
show ip ospf neighbor
show ip route
Step 2 (Overlay):
Step 2a(Control plane):
show bgp summary
Step 2b(Data plane):
show interface vxlan1
show vxlan flood vtep
Step 3 (Layer2 VPN):
Step 3a(Control Plane):
show bgp evpn instance vlan 10
show bgp evpn
show bgp neighbors 172.16.0.3 evpn advertised-routes
Step 3b:
show interface vxlan1
show vxlan flood vtep
show mac address-table
show vxlan address-table

Пікірлер: 9

@sagartorase5154 Ай бұрын

please make a video for different vlans

@CCIEOnTheSpectrum Ай бұрын

Sure, very soon

@ferozsyed2014 18 күн бұрын

very informative, and kinda confusing so am going to make it lab to see how its going to work.

@CCIEOnTheSpectrum 18 күн бұрын

Thanks. Sure practice it. Whats confusing, let me know?

@ferozsyed2014 18 күн бұрын

@CCIEOnTheSpectrum confusing part about Route dustinguser and route targets. How does it map Mac to ip and where the encapsulation and decap are happening.

@CCIEOnTheSpectrum 17 күн бұрын

Didn't understand your question. RD/RT are just like L3VPN, RT is used to install the routes in right MAC-VRF. VNI information helps for data plane forwarding. Split the concept in 2 parts control plan and data plane, would be easier to understand then. MAC to IP?? leaf switches don't need to learn about IP in this case, they are just acting like a layer 2 switch as its VXLAN bridging demo.