VXLAN Configuration¶

This section covers VXLAN tunnel configuration for Layer 2 overlay networks in FloofOS.

Overview¶

VXLAN (Virtual Extensible LAN) encapsulates Layer 2 Ethernet frames in UDP packets, enabling Layer 2 networks to span across Layer 3 infrastructure.

Create VXLAN Tunnel¶

Syntax¶

create vxlan tunnel src <source-ip> dst <destination-ip> vni <vxlan-id> [instance <n>] [decap-next <l2|l3>]

Example¶

create vxlan tunnel src 10.0.0.1 dst 10.0.0.2 vni 10000
commit

View VXLAN Tunnels¶

show vxlan tunnel

Configure VXLAN Interface¶

Bring Interface Up¶

set interface state vxlan_tunnel0 up

Assign to Bridge Domain¶

set interface l2 bridge vxlan_tunnel0 100

See Bridge Configuration for complete bridge domain documentation.

Delete VXLAN Tunnel¶

delete vxlan tunnel vxlan_tunnel0
commit

VXLAN with Bridge Domain¶

Create Bridge Domain¶

create bridge-domain 100

Add Interfaces to Bridge¶

set interface l2 bridge GE12/0/0 100
set interface l2 bridge vxlan_tunnel0 100

View Bridge Domain¶

show bridge-domain

Multicast VXLAN¶

For BUM traffic handling:

create vxlan tunnel src 10.0.0.1 dst 239.1.1.1 vni 10000

Network Example¶

Site A Configuration¶

# Underlay
set interface ip address GE12/0/0 10.0.0.1/24
set interface state GE12/0/0 up

# VXLAN tunnel
create vxlan tunnel src 10.0.0.1 dst 10.0.0.2 vni 10000
set interface state vxlan_tunnel0 up

# Bridge domain
create bridge-domain 100
set interface l2 bridge GE12/0/1 100
set interface l2 bridge vxlan_tunnel0 100

commit

Site B Configuration¶

# Underlay
set interface ip address GE12/0/0 10.0.0.2/24
set interface state GE12/0/0 up

# VXLAN tunnel
create vxlan tunnel src 10.0.0.2 dst 10.0.0.1 vni 10000
set interface state vxlan_tunnel0 up

# Bridge domain
create bridge-domain 100
set interface l2 bridge GE12/0/1 100
set interface l2 bridge vxlan_tunnel0 100

commit

L2 FIB¶

View MAC address table:

show l2fib all

Troubleshooting¶

Tunnel Not Working¶

Check underlay connectivity:
```
ping 10.0.0.2
```

Verify tunnel status:

show vxlan tunnel
show interface vxlan_tunnel0

MTU Issues¶

VXLAN adds 50 bytes overhead. Ensure underlay MTU is sufficient:

set interface mtu 9000 GE12/0/0

Command Reference¶

Command	Description
`create vxlan tunnel src <ip> dst <ip> vni <id>`	Create VXLAN tunnel
`delete vxlan tunnel <tunnel>`	Delete VXLAN tunnel
`show vxlan tunnel`	Display VXLAN tunnels
`set interface state <tunnel> up`	Enable tunnel
`set interface l2 bridge <tunnel> <bd>`	Add tunnel to bridge