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
BGP EVPN compared to static VXLAN
OS10 supports two types of VXLAN NVO overlay networks:
● Static VXLAN
● BGP EVPN
Configure and operate static VXLANs and BGP EVPNs for VXLAN in the same way:
● Manually configure the overlay and underlay networks.
● Manually configure each virtual network and VNI.
● Manually configure access port membership in a virtual network.
● Existing routing protocols provision and learn underlay reachability to VTEP peers.
However, static VXLANs and BGP EVPNs for VXLAN differ as described:
Table 6. Differences between Static VXLAN and VXLAN BGP EVPN
Static VXLAN VXLAN BGP EVPN
To start sending and receiving virtual-network traffic to and
from a remote VTEP, manually configure the VTEP as a
member of the virtual network.
No manual configuration is required. Each remote VTEP is
automatically learned as a member of a virtual network from
the EVPN routes received from the remote VTEP. After a
remote VTEP address is learned, VXLAN traffic is sent to, and
received from, the VTEP.
Data packets learn remote hosts after decapsulation of the
VXLAN header in the data plane.
Remote host MAC addresses are learned in the control plane
using BGP EVPN Type 2 routes and MAC/IP advertisements.
VXLAN BGP EVPN operation
The EVPN address family allows VXLAN to carry EVPN routes in External Border Gateway Protocol (eBGP) and Internal Border
Gateway Protocol (iBGP) sessions. In a data center network, use eBGP or iBGP for route exchange in both the IP underlay
network and EVPN.
The following sample BGP EVPN topology shows a leaf-spine data center network where eBGP exchanges IP routes in the IP
underlay network, and exchanges EVPN routes in the VXLAN overlay network. All spine nodes are in one autonomous system—
AS 65535. All leaf nodes are in another autonomous system—AS 65000.
To advertise underlay IP routes, eBGP peer sessions establish between the leaf and spine nodes using an interface IP address.
To advertise EVPN routes, eBGP peer sessions between the leaf and spine nodes use a Loopback IP address.
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VXLAN