Dell SmartFabric OS10 User Guide Release 10.5.3

value {import | export | both}

Configure an RT import or export value, or both values in the format 2-octet-ASN:4-octet-number or 4-octet-ASN:2-octet-number.

• The 2-octet ASN or number is 1 to 65535.
• The 4-octet ASN or number is 1 to 4294967295.

auto

Configure the RT import and export values to automatically generate.

asn4

(Optional) Advertises a 4-byte AS number in RT values.

A RT determines how EVPN routes distribute among EVPN instances. Configure each RT with an import and export value. When the EVPN routes advertise, the RT export value configured for export attaches to each route. The receiving VTEP compares a route export value with the local RT import value. If the values match, the routes download and install on the VTEP.

• For 2-byte autonomous systems, the RT auto-configures as Type 0 from the 2-byte AS and the 3-byte VNI—Type encoded as 0x0002.
• For 4-byte autonomous systems, the RT auto-configures as Type 2 from the 4-byte AS and the 2-byte EVI—Type encoded as 0x0202.

Configure a route target in a tenant VRF used for EVPN symmetric IRB traffic. The route-target command is supported in EVPN-VRF mode in 10.5.1 and later releases. In EVPN-VRF command mode, the manual route-target configuration should be unique across VRFs.

OS10(config)# evpn
OS10(config-evpn)# evi 10
OS10(config-evpn-evi)# vni 10000
OS10(config-evpn-evi)# rd 111.111.111.111:65535
OS10(config-evpn-evi)# route-target 1:3 both

OS10(config)# evpn
OS10(config-evpn)# vrf vrf-blue
OS10(config-evpn-vrf-vrf-blue)# route-target auto