VXLAN CLI
create vxlan tunnel
create vxlan tunnel src <local-vtep-addr> {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn> [instance <id>] [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del] [l3] [src_port <local-vtep-udp-port>] [dst_port <remote-vtep-udp-port>]
Add or delete a VXLAN Tunnel.
VXLAN provides the features needed to allow L2 bridge domains (BDs) to span multiple servers. This is done by building an L2 overlay on top of an L3 network underlay using VXLAN tunnels.
This makes it possible for servers to be co-located in the same data center or be separated geographically as long as they are reachable through the underlay L3 network.
You can refer to this kind of L2 overlay bridge domain as a VXLAN (Virtual eXtensible VLAN) segment.
Example of how to create a VXLAN Tunnel:
create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id 7
Example of how to create a VXLAN Tunnel with a known name, vxlan_tunnel42:
create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 instance 42
- Example of how to create a multicast VXLAN Tunnel with a known name,
vxlan_tunnel23:
create vxlan tunnel src 10.0.3.1 group 239.1.1.1 GigabitEthernet0/8/0 instance 23
Example of how to create a VXLAN Tunnel with custom udp-ports:
create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 src_port 59000 dst_port 59001
Example of how to delete a VXLAN Tunnel:
create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del
Declaration: create_vxlan_tunnel_command src/vnet/vxlan/vxlan.c line 919
Implementation: vxlan_add_del_tunnel_command_fn
set flow-offload vxlan
set flow-offload vxlan hw <interface-name> rx <tunnel-name> [del]
Declaration: vxlan_offload_command src/vnet/vxlan/vxlan.c line 1301
Implementation: vxlan_offload_command_fn
set interface ip vxlan-bypass
set interface ip vxlan-bypass <interface> [del]
This command adds the ‘ip4-vxlan-bypass’ graph node for a given interface. By adding the IPv4 vxlan-bypass graph node to an interface, the node checks for and validate input vxlan packet and bypass ip4-lookup, ip4-local, ip4-udp-lookup nodes to speedup vxlan packet forwarding. This node will cause extra overhead to for non-vxlan packets which is kept at a minimum.
Example of graph node before ip4-vxlan-bypass is enabled:
show vlib graph ip4-vxlan-bypass
Name Next Previous
ip4-vxlan-bypass error-drop [0]
vxlan4-input [1]
ip4-lookup [2]
Example of how to enable ip4-vxlan-bypass on an interface:
set interface ip vxlan-bypass GigabitEthernet2/0/0
Example of graph node after ip4-vxlan-bypass is enabled:
show vlib graph ip4-vxlan-bypass
Name Next Previous
ip4-vxlan-bypass error-drop [0] ip4-input
vxlan4-input [1] ip4-input-no-checksum
ip4-lookup [2]
Example of how to display the feature enabled on an interface:
show ip interface features GigabitEthernet2/0/0
IP feature paths configured on GigabitEthernet2/0/0...
...
ipv4 unicast:
ip4-vxlan-bypass
ip4-lookup
...
Example of how to disable ip4-vxlan-bypass on an interface:
set interface ip vxlan-bypass GigabitEthernet2/0/0 del
Declaration: set_interface_ip_vxlan_bypass_command src/vnet/vxlan/vxlan.c line 1123
Implementation: set_ip4_vxlan_bypass
set interface ip6 vxlan-bypass
set interface ip6 vxlan-bypass <interface> [del]
This command adds the ‘ip6-vxlan-bypass’ graph node for a given interface. By adding the IPv6 vxlan-bypass graph node to an interface, the node checks for and validate input vxlan packet and bypass ip6-lookup, ip6-local, ip6-udp-lookup nodes to speedup vxlan packet forwarding. This node will cause extra overhead to for non-vxlan packets which is kept at a minimum.
Example of graph node before ip6-vxlan-bypass is enabled:
show vlib graph ip6-vxlan-bypass
Name Next Previous
ip6-vxlan-bypass error-drop [0]
vxlan6-input [1]
ip6-lookup [2]
Example of how to enable ip6-vxlan-bypass on an interface:
set interface ip6 vxlan-bypass GigabitEthernet2/0/0
Example of graph node after ip6-vxlan-bypass is enabled:
show vlib graph ip6-vxlan-bypass
Name Next Previous
ip6-vxlan-bypass error-drop [0] ip6-input
vxlan6-input [1] ip4-input-no-checksum
ip6-lookup [2]
Example of how to display the feature enabled on an interface:
show ip interface features GigabitEthernet2/0/0
IP feature paths configured on GigabitEthernet2/0/0...
...
ipv6 unicast:
ip6-vxlan-bypass
ip6-lookup
...
Example of how to disable ip6-vxlan-bypass on an interface:
set interface ip6 vxlan-bypass GigabitEthernet2/0/0 del
Declaration: set_interface_ip6_vxlan_bypass_command src/vnet/vxlan/vxlan.c line 1180
Implementation: set_ip6_vxlan_bypass
show vxlan tunnel
show vxlan tunnel [raw]
Display all the VXLAN Tunnel entries.
Example of how to display the VXLAN Tunnel entries:
show vxlan tunnel
[0] src 10.0.3.1 dst 10.0.3.3 src_port 4789 dst_port 4789 vni 13
encap_fib_index 0 sw_if_index 5 decap_next l2
Declaration: show_vxlan_tunnel_command src/vnet/vxlan/vxlan.c line 983
Implementation: show_vxlan_tunnel_command_fn