Standards: IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX / 100BASE-FX
IEEE 802.3z Gigabit SX / LX
IEEE 802.3ab Gigabit 1000T
IEEE 802.3x flow control and back pressure
IEEE 802.3ad port trunk with LACP
IEEE 802.1D Spanning Tree Protocol
IEEE 802.1w Rapid Spanning Tree Protocol
IEEE 802.1s Multiple Spanning Tree Protocol
IEEE 802.1p Class of Service
IEEE 802.1Q VLAN tagging
IEEE 802.1x Port Authentication Network Control
IEEE 802.1ab LLDP
IEEE 802.3af Power over Ethernet
IEEE 802.3at High Power over Ethernet
RFC 768 UDP
RFC 793 TFTP
RFC 791 IP
RFC 792 ICMP
RFC 2068 HTTP
RFC 1112 IGMP version 1
RFC 2236 IGMP version 2
RFC 3376 IGMP version 3
RFC 2710 MLD version 1
RFC 3810 MLD version 2
Primary Ports: 20 x 10/100/1000BASE-T Gigabit RJ45 copper with 16-port IEEE 802.3at / af PoE injector
4 x 100/1000BASE-X mini-GBIC / SFP slots, shared with port-17 to port-20 compatib...
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Brand: Groupon
Specifications: Redeemable online at Groupon.com
Terms: Redeemable only at groupon.com for Groupons or for account credits usable to buy Groupons. Not usable to buy Groupon gift cards. To redeem you must have or create an account at groupon.com. When redeemed, you must use the entire card balance to acquire Groupons, account credits or both. If partially used to buy Groupons, th...