WS-X6748-GE-TX Cisco WS-X6748-GE-TX 48 x 10/100/1000Base-T - 1 x Distributed Forwarding ... ProtocolSNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, SNMP 3, HTTPFeaturesFull duplex capability, auto-negotiation, VLAN support, Cisco ... (PVST+), Per-VLAN Rapid Spanning Tree (PVRST)Compliant StandardsIEEE 802.3, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, ... and cooperation! Original New Cisco Moudle WS-X6748-GE-TX