Users Guide
VXLAN Service nodes for BFD
When multiple service nodes are available for a given Logical Network, Network Virtualization Overlay (NVO) gateway picks one of the
service nodes for forwarding Broadcast unknown Unicast and Multicast Trac (BUM). When one of the service nodes goes down or bfd is
down in that service node, the gateway switches to the alternate service node for Broadcast unknown Unicast and Multicast Trac
(BUM).
Examples of the show bfd neighbors command.
To verify that the session is established, use the show bfd neighbors command.
Dell_GW1#show bfd neighbors
* - Active session role
Ad Dn - Admin Down
B - BGP
C - CLI
I - ISIS
O - OSPF
O3 - OSPFv3
R - Static Route (RTM)
M - MPLS
V - VRRP
VT - Vxlan Tunnel
LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult Clients
* 1.0.1.1 1.0.1.2 Te 1/49/1 Up 200 200 3 B
* 3.3.3.3 192.168.122.135 Te 1/38 Up 1000 1000 3 VT
* 3.3.3.3 192.168.122.136 Te 1/42 Up 1000 1000 3 VT
* 3.3.3.3 192.168.122.137 Te 1/43 Up 1000 1000 3 VT
* 3.3.3.3 192.168.122.138 Te 1/38 Up 1000 1000 3 VT
* 3.3.3.3 192.168.122.139 Te 1/42 Up 1000 1000 3 VT
Static Virtual Extensible LAN (VXLAN)
When you create a Virtual Extensible LAN (VXLAN) , you need Network Virtualization Platform (NVP) Controller to congure and control
the VXLAN. When you create a VXLAN instance in static mode, you can congure the VXLAN using CLIs instead of using the Controller.
Once you create a VXLAN instance in the static mode, you can create a VNI prole, associate a VNID to the VNI prole, associate a remote
VTEP to the VNID, and associate the VNID to a VLAN using the CLIs.
Conguring Static VXLAN
Port VLAN bindings in the context of VXLAN is achieved by associating a port to VLAN using tagged or untagged interface CLIs. If a VLAN
has VNID associated and the port is VXLAN-enabled, then port-vlan participates in VXLAN and Layer 2 switching does not happen in that
port-vlan. A VXLAN-enabled VLAN can also have non-VXLAN ports as members. But switching cannot happen between VXLAN ports and
non-VXLAN ports.
To congure the static VXLAN on the switch, follow these steps:
1 Enable VXLAN conguration globally on the platform.
CONFIGURATION mode
feature vxlan
2 Enable static VXLAN instance.
Virtual Extensible LAN (VXLAN)
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