... addition to high-performance Layer 2 to Layer 4 switching services. The S7700 also features super ... protocols such as PIM SM, PIM DM, PIM SSM, MLD, and IGMP snooping. It can provide ... An idle port enters a sleep mode to reduce power consumption.The S7700 supports Power over Ethernet (PoE) ... protocol packet header, Layer 3 protocol information, Layer 4 protocol information, and 802.1p priorityACL, CAR, ...