- Advanced classifier-based QoS
 - Layer 4 prioritization
 - Traffic prioritization
 - Class of service (CoS)
 - RMON, XRMON, and sFlow v5
 - IEEE 802.1AB Link Layer Discovery Protocol (LLDP)
 - Uni-Directional Link Detection (UDLD)
 - Command authorization
 - Dual flash images
 - Jumbo frames
 - Auto-MDIX
 - IEEE 802.1s multiple spanning tree protocol
 - Distributed trunking
 - Uplink failure detect
 - VLAN support and tagging
 - IEEE 802.1v protocol VLANs
 - GARP VLAN Registration Protocol (GVRP)
 - User Datagram Protocol (UDP) helper function
 - Loopback interface address
 - Route maps
 - Access control lists (ACLs)
 - Virus throttling
 - DHCP protection
 - Secure management access
 - Switch CPU protection
 - ICMP throttling
 - Identity-driven ACL
 - STP BPDU port protection
 - Dynamic IP lockdown
 - Dynamic ARP protection
 - STP root guard
 - Detection of malicious attacks
 - Port security
 - MAC address lockout
 - Source-port filtering
 - RADIUS/TACACS+
 - Secure Shell (SSHv2)
 - Secure Sockets Layer (SSL)
 - Secure File Transfer Protocol (FTP)
 - Management interface wizard
 - Switch management logon security
 - Security banner
 - LLDP-MED (Media Endpoint Discovery)
 - RADIUS VLAN for voice
 
The HP 3500 yl Switch Series provides performance and ease of use for enterprise edge and branch office deployments that require PoE+. Based on a HP Networking ASIC, the 3500 yl has low latency with increased packet buffering and an optional module for 10GbE ports. The 3500 yl has a robust Layer 3 feature set with IPv4 BGP, policy based routing, and IPv4/IPv6 OSPF, and can be seamlessly managed with the optional HP Intelligent Management Center (IMC) Software Platform. Software-defined Network (SDN) ready with support for OpenFlow.