Neighbor Discovery (ND) Path MTU (PMTU) IPv6 ping, IPv6 tracert, and IPv6 Telnet Manually con?gured tunnel 6 to 4 tunnel ISATAP tunnel ACLs based on the source IPv6 address, destination IPv6 address, Layer 4 ports, or protocol type MLD v1/v2 snooping
MAC address table
IEEE 802.1d compliance 16K MAC address entries MAC address learning and aging Static, dynamic, and blackhole MAC address entries Packet filtering based on source MAC addresses
Management and maintenance
iStack MAC Forced Forwarding (MFF) Remote configuration and maintenance using Telnet Auto-Config. Virtual cable test Ethernet OAM (IEEE 802.3ah and 802.1ag) Port mirroring and RSPAN (remote port mirroring) SNMPv1/v2/v3 and RMON MUX VLAN and GVRP Web NMS Auto-Config and HGMP SSHv2 System logs and alarms of different levels
Multicast
1K multicast groups IGMP v1/v2/v3 snooping and IGMP fast leave Multicast VLAN and multicast replication between VLANs Multicast load balancing among member ports of a trunk Controllable multicast Port-based multicast traffic statistics
Twenty-four 10/100Base-TX ports, two 1000Base-X SFP ports, and two gigabit(GE) combo ports
Power consumption
< 20 W
Power supply
DC: Rated voltage range: -48 V to -60 V DC Maximum voltage range: -36 V to -72 V DC
QoS/ACL
Rate limiting on packets sent and received by an interface Packet redirection Port-based traf?c policing and two-rate three-color CAR Eight queues on each port WRR, DRR, SP, WRR+SP, and DRR+SP queue scheduling algorithms Re-marking of the 802.1p priority and DSCP priority Packet ?ltering on Layers 2 through 4, ?ltering out invalid frames based on the source MAC address, destination MAC address, source IP address, destination IP address, port number, protocol type, and VLAN ID Rate limiting in each queue and traf?c shaping on ports
Reliability
RRPP (ring topology, intersecting rings, and multi-instance), implementing protection switchover within 50 ms Smart Link tree topology and Smart Link multi-instance, providing the millisecond-level protection switchover STP(IEEE 802.1d), RSTP(IEEE 802.1w), and MSTP(IEEE 802.1s) BPDU protection, root protection, and loop protection Smart Ethernet Protection (SEP)
Security
User privilege management and password protection DoS attack defense, ARP attack defense, and ICMP attack defense Binding of the IP address, MAC address, interface, and VLAN Port isolation, port security, and sticky MAC Blackhole MAC address entries Limit on the number of learned MAC addresses 802.1x authentication and limit on the number of users on an interface AAA authentication, RADIUS authentication, HWTACACS authentication, and NAC SSH v2.0 CPU defense Blacklist and whitelist
Surge protection
6KV surge protection capability on service ports
VLAN features
4 K VLANs Guest VLANs, voice VLAN, and super VLAN VLAN assignment based on MAC addresses, protocols, and IP subnets QinQ Selective QinQ 1:1 VLAN mapping N:1 VLAN mapping