Standards and Protocols IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE802.3z, IEEE 802.3ae, IEEE 802.3ad, IEEE 802.3x, IEEE 802.1d, IEEE 802.1s, IEEE 802.1w, IEEE 802.1q, IEEE 802.1x, IEEE 802.1p Interfaces 24 10/100/1000Mbps RJ45 Ports 4 fixed 10G SFP+ Slots Network Media 10BASE-T: UTP category 3, 4, 5 cable (maximum 100m) 100BASE-TX/1000Base-T: UTP category 5, 5e or above cable (maximum 100m) 1000BASE-X: MMF, SMF 10GBASE-LR 10GBASE-SR Fan Quantity Fanless Power Supply 100-240V, 50/60Hz Power Consumption 21.8W Stacking Speed (Per Port) 20Gbps (Full-Duplex) No. of Units Per Stack Up to 6 units Installable SFP+ Transceivers and Direct Attach Copper (DAC) Cables TXM431-SR TXM432-LR TXC432-CU1M TXC432-CU3M Max Number of Stacking Ports Installable 2 SFP+ Switching Capacity Up to 128Gbps for a standalone switch Packet Forwarding Rate Up to 95.2Mpps for a standalone switch MAC Address Table 16K Packet Buffer Memory 1.5MB Jumbo Frame 9KB Number of Static Routes 32 IPv4 Number of IP Interfaces 16 Quality of Service Support 802.1p CoS/DSCP priority Support 8 priority queues Queue scheduling: SP, WRR, SP+WRR Port/Flow- based Rate Limiting IPv6 QoS Voice VLAN L2 and L2+ Features Static Routing DHCP Relay IGMP Snooping V1/V2/V3 802.3ad LACP (Up to 14 aggregation groups, containing 8 ports per group) Spanning Tree STP/RSTP/MSTP BPDU Filtering/Guard TC/Root Protect Loopback detection 802.3x Flow Control LLDP, LLDP-MED VLAN Supports up to 4K VLANs simultaneously (out of 4K VLAN IDs) MAC/Protocol-based VLAN