A Layer 2 connection does not expend across data centers.

Understanding EVPN Route Types:

EVPN routes facilitate Layer 2 and Layer 3 connectivity across data centers.

Layer 2 and Layer 3 Connectivity:

For Layer 3 connectivity across data centers, where Layer 2 does not extend, IP prefixes need to be communicated.

Type 5 Routes:

Type 5 (IP Prefix Route):

Used to distribute IP prefixes between data centers.

Ensures that Layer 3 connectivity is established without extending Layer 2 domains.

References:

Juniper EVPN Type 5 Routes

Configuring EVPN for Data Center Interconnect