... hardware stackClusteringUp to 256, manageable through single IPSecurityIEEE 802.1x port-based user authenticationRemote authentication through RADIUSPort SecurityMAC filteringPort+ ... , 40 km, 1310 nmGSFP-ZX-801-port 1000M SFP module, single-mode, 80 km, 1550 nmThe functions and corresponding ... Co., Ltd.Tel: 86-21-50800666Fax: 86-21-50800641 High performance, Network Manageable Gigabit Ethernet Switch