Layer 2+ 24-Port 10G SFP+ + 2-Port 40G QSFP+ Stackable Managed Switch  

Physical Port

• 24 10GBASE-SR/LR SFP+ ports, compatible with 1000BASE-SX/LX/BX SFP
• 2 QSFP+ slots with each supporting native 40G and four 10 Gigabit Ethernet modes.
• 1 10/100/1000BASE-T RJ45 in-band management port
• 1 USB2.0 interface for configuration and firmware storage
• RJ45 console interface for switch basic management and setup

Stacking Features

• Hardware Stacking
• - Virtualized multiple XGS-5240-24X2QR switches into one logical device

• - Connects with stack member via assigned 10G SFP+ interfaces or 40G QSFP+ interfaces

• - Single IP address stack management, supporting up to 4 switches stacked together

• - Stacking architecture supports redundancy Ring mode

• IP Stacking
• - Connects with stack member via both SFP+ and QSFP+ interfaces

• - Single IP address management, supporting up to 24 units stacked together

IP Routing Features

• IP routing protocol supports
• Routing interface provides per VLAN routing mode 
• Supports route redistribution

Layer 2 Features

• Prevents packet loss flow control
• - IEEE 802.3x pause frame flow control in full-duplex mode

• - Back-pressure flow control in half-duplex mode

• High performance Store-and-Forward architecture, broadcast storm control and port loopback detection
• 32K MAC address table, automatic source address learning and aging
• Supports VLAN
• - IEEE 802.1Q tag-based VLAN

• - GVRP for dynamic VLAN management

• - Up to 256 VLANs groups, out of 4041 VLAN IDs

• - Provider Bridging (VLAN Q-in-Q, IEEE 802.1ad) supported

• - Private VLAN Edge (PVE) supported

• - GVRP protocol for Management VLAN

• - Protocol-based VLAN

• - MAC-based VLAN

• - IP subnet VLAN

• Supports Link Aggregation
• - Maximum 12 trunk groups, up to 8 ports per trunk group

• - IEEE 802.3ad LACP (Link Aggregation Control Protocol)

• - Cisco ether-channel (static trunk)

• Supports Spanning Tree Protocol
• - STP, IEEE 802.1D (Classic Spanning Tree Protocol)

• - RSTP, IEEE 802.1w (Rapid Spanning Tree Protocol)

• - MSTP, IEEE 802.1s (Multiple Spanning Tree Protocol, spanning tree by VLAN)

• - Supports BPDU and root guard

• Port mirroring to monitor the incoming or outgoing traffic on a particular port (many to many)
• Provides port mirror (many-to-1)

Quality of Service

• 8 priority queues on all switch ports
• Support for strict priority and WRR (Weighted Round Robin) CoS policies
• Traffic classification
• - IEEE 802.1p CoS/ToS

• - IPv4/IPv6 DSCP

• - Port-based WRR

• Strict priority and WRR CoS policies

Multicast

• Supports IPv4 IGMP snooping v1, v2 and v3
• Supports IPv6 MLD v1 and v2 snooping
• Querier mode support
• Supports Multicast VLAN Register (MVR)

Security

• IEEE 802.1x port-based network access authentication
• MAC-based network access authentication 
• Built-in RADIUS client to cooperate with the RADIUS servers for IPv4 and IPv6
• TACACS+ login users access authentication
• IP-based Access Control List (ACL)
• MAC-based Access Control List
• Supports DHCP snooping
• Supports ARP inspection
• IP Source Guard prevents IP spoofing attacks
• Dynamic ARP Inspection discards ARP packets with invalid MAC address to IP address binding

Management

• Management IP for IPv4 and IPv6
• Switch Management Interface
• - Console/Telnet Command Line Interface 

• - Web switch management

• - SNMP v1, v2c, and v3 switch management

• - SSH/SSL secure access

• BOOTP and DHCP for IP address assignment
• Firmware upload/download via TFTP or HTTP Protocol for IPv4 and IPv6
• SNTP (Simple Network Time Protocol) for IPv4 and IPv6
• User privilege levels control
• Syslog server for IPv4 and IPv6
• Supports DDM
• OAM EFM; OAM CFM
• Four RMON groups 1, 2, 3, 9 (history, statistics, alarms and events)
• Supports sFlow
• Supports ULDP
• Supports ULPP (Uplink Protection Protocol)
• Supports ULSM (Uplink State Monitor Protocol)
• Supports LLDP/LLDP MED
• Supports DHCP Option82
• IPv4/IPv6 DHCP Client
• IPv4/IPv6 DHCP Relay
• IPv4/IPv6 DHCP Snooping
• IPv4/IPv6 DHCP Server
• Supports ping, trace route function for IPv4 and IPv6

Redundant Power System

• Redundant 100~240V AC/36-72V DC dual power 
• Active-active redundant power failure protection
• Backup of catastrophic power failure on one supply
• Fault tolerance and resilience