In a meshed fabric SAN topology, the E Port (Expansion Port) type is used on SAN switches. E Ports connect to other switches within the fabric, allowing for inter-switch links (ISLs) that enable communication between multiple switches in the SAN. This topology is essential for creating a scalable and resilient storage network, as it allows multiple paths for data to travel between different nodes in the SAN. For more information, refer to: HPE SAN Solutions