| General Features | 
        
        
          | Description | 
          48 10/100Base-TX ports and 4 combo Gigabit Ethernet RJ-45/SFP (Small Form Factor Pluggable ) ports | 
        
        
          | Physical Configuration | 
        
        
          | Dimension (HxWxD) cm | 
          4.3 x 44 x 23 cm | 
        
        
          | Expansion Slots | 
          4 | 
        
        
          | Fixed Ports | 
          48 | 
        
        
          | Packet Buffer | 
          8Mb | 
        
        
          | Weight (kg) | 
          3kg (6.6lbs) | 
        
        
          | Performance | 
        
        
          | Forwarding Rate | 
          13.1Mpps | 
        
        
          | MAC Address Table Size | 
          16K | 
        
        
          | Switching Capacity | 
          17.6Gbps | 
        
        
          | L2 Features | 
        
        
          | Autonegotiation | 
          Yes | 
        
        
          | Flow Control | 
          Yes | 
        
        
          | IGMP Snooping | 
          v1 | v2 | v3 | 
        
        
          | Jumbo Frame | 
          Yes | 
        
        
          | Link Aggregation | 
          IEEE 802.3ad with LACP (Dynamic) | Static Trunk | 
        
        
          | Multicast (IGMP) Snooping | 
          Querier Support | IGMP Filtering | 
        
        
          | Q in Q | 
          Yes | 
        
        
          | Spanning Tree | 
          IEEE 802.1D (STP) | IEEE 802.1w (RSTP) | IEEE 802.1s (MSTP) | BPDU Filter | Root Guard | BPDU Guard | Loopback Detection | 
        
        
          | VLAN | 
          802.1Q VLAN | GVRP | IEEE 802.1v | Q-in-Q | IP Subnet VLAN | Port Based | Voice VLAN | 
        
        
          | QoS Features | 
        
        
          | CoS | 
          IEEE 802.1p | IP Precedence | DSCP | TCP/UDP | 
        
        
          | H/W Queues | 
          4 | 
        
        
          | Rate Limiting | 
          Ingress | Egress | 
        
        
          | Security Features | 
        
        
          | ACL | 
          Base on src/dst IP | Base on TCP/UDP src.dst Port | Base on src/dst MAC | 
        
        
          | IP Source Guard | 
          Yes | 
        
        
          | MAC Based Authentication | 
          Yes | 
        
        
          | Port Security (MAC Based) | 
          Static | 
        
        
          | RADIUS (RFC2138) | 
          Authentication | 
        
        
          | SSH v1.5/ v2.0 (Secured Telnet Session) | 
          Yes | 
        
        
          | TACACS+ | 
          Authentication | 
        
        
          | Management Features | 
        
        
          | CLI | 
          Yes | 
        
        
          | Configuration Download/ Upload | 
          Yes | 
        
        
          | DHCP | 
          Client | Relay | Option 82 | Snooping | 
        
        
          | Dynamic ARP inspection (DAI) | 
          Yes | 
        
        
          | Event/ Error Log | 
          SMTP (RFC821) | 
        
        
          | HTTP | 
          Yes | 
        
        
          | Port Mirroring | 
          Yes | 
        
        
          | Support ECView Pro, powerful network management software | 
          Yes | 
        
        
          | WEB Authentication | 
          Yes | 
        
        
          | IPv6 Features | 
        
        
          | IPv4/IPv6 Dual Protocol Stack | 
          Yes | 
        
        
          | IPv6 Address Types | 
          Unicast | 
        
        
          | IPv6 Management | 
          SNMP over IPv6 | IPv6 Telnet Support | Remote IPv6 Ping | IPv6 DNS Resolver | HTTP over IPv6 | SSH over IPv6 | 
        
        
          | IPv6 Neighbor Discovery | 
          Yes |