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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
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SGSW-2840P
■ 24-Port 10/100Mbps Fast Ethernet ports with IEEE 802.3af PoE Injector
■ 4 10/100/1000Mbps TP and SFP shared combo interfaces
■ RS-232 DB9 console interface for basic management and setup
Layer 2 Features
■ Complies with the IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3z Gigabit Ethernet standard
■ Supports Auto-negotiation and Half-Duplex / Full-Duplex modes for all 10Base-T/100Base-TX and 1000Base-T ports.
■ Auto-MDI/MDI-X detection for each RJ-45 port
■ Prevents packet loss Flow Control:
- IEEE 802.3x FAUSE Frame flow control for Full-Duplex mode
- Back-Pressure Flow Control in Half-Duplex mode
■ High performance of Store-and-Forward architecture, broadcast storm control and runt/CRC filtering eliminate
erroneous packets to optimize the network bandwidth
■ 8K MAC address table, automatic source address learning and ageing
■ 2Mbit embedded memory for packet buffers
■ Support VLANs
- - IEEE 802.1Q tag-based VLAN
- - IEEE 802.1v Protocol based VLAN
- - Q-in-Q tunneling
- - GVRP protocol for VLAN Management
- Up to 255 VLANs groups, out of 4041 VLAN IDs
- - Private VLAN Edge (PVE) supported
■ Support Link Aggregation
− up to 12 trunk groups
− up to 8 ports per trunk group with 1.6Gbps bandwidth (Full Duplex Mode)
− IEEE 802.3ad LACP (Link Aggregation Control Protocol)
− Cisco ether-channel (Static Trunk)
■ Spanning Tree Protocol
- STP, IEEE 802.1D (Classic Spanning Tree Protocol)
- RSTP, IEEE 802.1w (Rapid Spanning Tree Protocol)
- MSTP, IEEE 802.1s (Multiple Spanning Tree Protocol, spanning tree by VLAN)
■ Port Mirroring to monitor the incoming or outgoing traffic on a particular port
Quality of Service
■ 4 priority queues on all switch ports
■ Traffic classification:
- IEEE 802.1p CoS
- IP TOS / DSCP / IP Precedence