Up to 16 K MAC address；

Support 4K VLANs and IEEE802.1Q/802.1p,based on MAC,IP Subnet and protocol.Support VLAN Double-Tag;

Support IEEE802.1QinQ/802.1ad and VLAN transparent transmission;

Support port stability statistic and monitoring;

Support 1K multicast Route Table and support SCB;

Support STP/RSTP;

QoS:Support 8 levels CoS priority.Support SP,WRR,SP+WRR;

Support IGMP Snooping;

Support ACLbased on IP,TCP/UDP and protocol;

Support Filter based on port,MAC,VLAN ID and IP(IPv4/IPv6).

Support port-based rate limitation and bandwidth control;

In compliant with IEEE802.3ah standard;

Up to 20KM transmission Distance;

Support Dynamic Bandwidth Allocation (DBA);

Support ONU auto-discovery/link detection/remote upgrade of software;

Support VLAN division and user separation to avoid broadcast storm;

Support various LLID configuration and single LLID configuration; Different user and different service could provide different QoS by means of different LLID channels;

Support power-off alarm function,easy for link problem detection;

Support broadcasting storm resistance function;

Support port isolation between different ports;

Specialized design for system breakdown prevention to maintain stable system;

Support dynamic distance calculation on EMS online;

Support SIP(IMS),H.248&MGCP protocol and It can well communicate with the mainstream soft switch platforms in the industry;

Support heartbeat function and supports active / standby soft switch platform;

Support ITU-T G.711,G.723.1 and G.729 speech codec;

Support Echo cancellation exceeding ITU-T G.165/G.168-2002, up to 128ms tail length;

Support high/low speed fax/Modem, bypass fax, and T38 fax;

Support InBand / RFC2833/SIP INFO, MD5 authentication, call forward, call waiting, hot-line call, and all kinds of value-added voice service. Multi-party conferencing

Support Line testing according to GR-909

Support Modem(56Kbps)

Suport PPPoE,DHCP and static IP;

Support Web/CLI/SNMP