Encore electronic ENMGS-24+4 - Manual (Page 11)

Functional Description
Jumbo Frame
With Jumbo Frame supported, it is allowed for the switch to transport
identical data in fewer frames. Hence helps to ensure fewer overheads,
shorten processing time, and reduce interrupts.
Note: To enable Jumbo Frame, Flow Control should be enabled in advance.
Flow Control and Back Pressure
Flow control and Back Pressure both contributes for lower and higher speed
devices to communicate to each other hence ensures the correctness of
data transmitting. The 802.3x flow control and Back Pressure mechanisms
work respectively for full and half duplex modes. Flow control can be
enabled or disabled on a per-port basis.
Mirror
The Mirror function provides network administrator to monitor the traffic. By
forwarding a copy of the packets that transferred by the monitored port, the
sniffer port received all the packets and hence is able to monitor the traffic
of the specified port.
VLAN
With VLAN supported, the network can be segmented in groups to reduce
the collisions from widely broadcasting. The device supports both
port-based VLAN and 802.1Q tag based VLAN. Port-based VLAN classifies
incoming packets to VLANs according to their ingress port. The 802.1Q
based VLAN add a tag to the header of the packet to classify their VLANs.
Trunk (Aggregation)
The Trunk functionality integrates several ports to enlarge the bandwidth
that helps to boost the backbone connectivity. The switch allows the
Maximum 8(16-port)/ 12(24-port) groups and 8 members for each group.
Quality of Service (QoS)
The QoS service classifies packets into different precedence. The packets
are transmitted and received by their classified priorities. This mechanism
helps high bandwidth demanded applications such as VoIP to get an
unobstructed connection.
SNMP
10
This device is SNMP(Simple Network Management Protocol)-management
supported. This allows this product to be monitored or inspected by a SNMP
management station.