Deployment Guide
Table Of Contents
- VXLAN and BGP EVPN Configuration Guide for Dell EMC SmartFabric OS10 Release 10.5.2
- VXLAN
- VXLAN concepts
- VXLAN as NVO solution
- Configure VXLAN
- L3 VXLAN route scaling
- DHCP relay on VTEPs
- View VXLAN configuration
- VXLAN MAC addresses
- Example: VXLAN with static VTEP
- Controller-provisioned VXLAN
- BGP EVPN for VXLAN
- BGP EVPN compared to static VXLAN
- VXLAN BGP EVPN operation
- Configure BGP EVPN for VXLAN
- BGP EVPN with VLT
- VXLAN BGP EVPN routing
- Example: VXLAN with BGP EVPN
- Example: VXLAN BGP EVPN — Multiple AS topology
- Example: VXLAN BGP EVPN — Centralized L3 gateway
- Example: VXLAN BGP EVPN — Border leaf gateway with asymmetric IRB
- Example: VXLAN BGP EVPN—Symmetric IRB
- Example - VXLAN BGP EVPN symmetric IRB with unnumbered BGP peering
- Example - Route leaking across VRFs in a VXLAN BGP EVPN symmetric IRB topology
- Example: Migrating from Asymmetric IRB to Symmetric IRB
- VXLAN MAC commands
- clear mac address-table dynamic nve remote-vtep
- clear mac address-table dynamic virtual-network
- show mac address-table count extended
- show mac address-table count nve
- show mac address-table count virtual-network
- show mac address-table extended
- show mac address-table nve
- show mac address-table virtual-network
- VXLAN BGP commands
- VXLAN commands
- hardware overlay-routing-profile
- interface virtual-network
- ip virtual-router address
- ip virtual-router mac-address
- member-interface
- nve
- remote-vtep
- show hardware overlay-routing-profile mode
- show interface virtual-network
- show nve remote-vtep
- show nve remote-vtep counters
- show nve vxlan-vni
- show virtual-network
- show virtual-network counters
- show virtual-network interface counters
- show virtual-network interface
- show virtual-network vlan
- show vlan (virtual network)
- source-interface loopback
- virtual-network
- virtual-network untagged-vlan
- vxlan-vni
- VXLAN EVPN commands
- Support resources
- Index
VXLAN
A virtual extensible LAN (VXLAN) extends Layer 2 (L2) server connectivity over an underlying Layer 3 (L3) transport network
in a virtualized data center. A virtualized data center consists of virtual machines (VMs) in a multi-tenant environment. OS10
supports VXLAN as described in RFC 7348.
VXLAN provides a L2 overlay mechanism on an existing L3 network by encapsulating the L2 frames in L3 packets. The
VXLAN-shared forwarding domain allows hosts such as virtual and physical machines, in tenant L2 segments to communicate
over the shared IP network. Each tenant L2 segment is identified by a 24-bit ID called a VXLAN network identifier (VNI).
Deployed as a VXLAN gateway, an OS10 switch performs encapsulation/de-encapsulation of L2 frames in L3 packets while
tunneling server traffic. In this role, an OS10 switch operates as a VXLAN tunnel endpoint (VTEP). Using VXLAN tunnels, server
VLAN segments communicate through the extended L2 forwarding domain.
Figure 1. VXLAN topology
NOTE:
● The platforms that support only L2 VXLAN gateway include: S4048-ON, Z9100-ON, and Z9264F-ON
● The platforms that support both L2 VXLAN and L3 VXLAN routing (Routing In and Out of Tunnels (RIOT)) include:
○ Asymmetric IRB: S4048T-ON, S4248-ON series, S4100-ON series, S5200-ON series, and S6010-ON
○ Symmetric IRB: S4048T-ON, S4100-ON series, S5200-ON series, and S6010-ON
After VXLAN decapsulation, routing between virtual networks and regular VLANs (VLAN that is not configured as a virtual
network) is supported only on the following platforms:
● S4200-ON series
● S5200-ON series
On other platforms, routing after decapsulation is performed only between virtual networks. If routing is needed for a
regular VLAN after decapsulation, a virtual network should be configured instead of a regular VLAN (even though that
VLAN exists only on access ports) to overcome this limitation on other platforms. On border leaf switches, an access port
of this virtual network could then be connected to an external router and a protocol such as BGP or static routing could be
used on this virtual network interface for external reachability.
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