API Guide

OS10(config-router-neighbor-af)# exit
OS10(config-router-bgp-neighbor)# exit
● On each spine switch, disable sender-side loop detection to leaf switch neighbors in ROUTER-BGP-NEIGHBOR-AF
mode.
OS10(conf-router-neighbor)# address-family ipv4 unicast
OS10(conf-router-neighbor-af)# no sender-side-loop-detection
OS10(conf-router-neighbor-af)# exit
m. (Optional) In a VLT deployment, on each leaf switch, configure the number of multi-hop peer routes in ROUTER-BGP-
NEIGHBOR mode to ensure that the BGP EVPN peer session establishes over the VLT VTEP peer if all local links to spine
switches are down.
OS10(conf-router-neighbor)# ebgp-multihop 1
2. Configure EVPN.
An EVPN instance (EVI) spans across the VTEPs that participate in the EVPN. In OS10, configure an EVI in auto-EVI or
manual configuration mode.
● Auto-EVI mode
a. Enable the EVPN control plane in CONFIGURATION mode.
evpn
b. Enable auto-EVI creation for overlay virtual networks in EVPN mode. Auto-EVI creation is supported only if BGP
EVPN is used with 2-byte AS numbers and if at least one BGP instance is enabled with the EVPN address family. No
further manual configuration is allowed in auto-EVI mode.
auto-evi
● Manual EVI configuration mode
a. Enable the EVPN control plane in CONFIGURATION mode.
evpn
b. Manually create an EVPN instance in EVPN mode. The range is from 1 to 65535.
evi id
c. Configure the Route Distinguisher in EVPN EVI mode.
rd {A.B.C.D:[1-65535] | auto}
Where:
○ rd A.B.C.D:[1-65535] configures the RD with a 4-octet IPv4 address then a 2-octet-number.
○ rd auto automatically generates the RD.
d. Configure the RT values in EVPN EVI mode.
route-target {auto | value [asn4] {import | export | both}}
Where:
○ route-target auto auto-configures an import and export value for EVPN routes.
○ route-target value [asn4]{import | export | both} configures an import or export value for
EVPN routes in the format 2-octet-ASN:4-octet-number or 4-octet-ASN:2-octet-number.
￭ The 2-octet ASN number is 1 to 65535.
￭ The 4-octet ASN number is 1 to 4294967295.
To configure the same value for the RT import and export values, use the both option. asn4 advertises a 2-byte
AS number as a 4-byte route target value. If you specify the asn4 option, configure the VXLAN network ID
associated with the EVPN instance in EVPN EVI mode, from 1 to 16,777,215. Configure the same VNI value that
you configure for the VXLAN virtual network. For more information, see Configure VXLAN.
vni vni
3. Verify the BGP EVPN configuration.
BGP EVPN for VXLAN
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