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Figure 5-19:  Port Control interface 
 
This page includes the following fields: 
Object Description 
Port:  Use the scroll bar and click on the port number to choose the port to be 
configured. 
State: Current port state. The port can be set to disable or enable mode. If the port 
state is set as ‘Disable’, it will not receive or transmit any packet. 
Negotiation: Auto and Force. Being set as Auto, the speed and duplex mode are negotiated 
automatically. When you set it as Force,
 you have to set the speed and duplex 
mode manually. 
Speed:  It is available for selecting when the Negotiation column is set as Force. When 
the Negotiation column is set as Auto, this column is read-only. 
Duplex: It is available for selecting when the Negotiation column is set as Force. When 
the Negotiation column is set as Auto, this column is read-only. 
Flow Control: Whether or not the receiving node sends feedback to the sending node is 
determined by this item. When enabled, once the device exceeds the input data 
rate of another device, the receiving device will send a PAUSE frame which halts 
the transmission of the sender for a specified period of time. When disabled, the 
receiving device will drop the packet if too much to process. 
Security: 
When the Security selection is set as ‘On’, any access from the device which 
connects to this port will be blocked unless the MAC address of the device is 
included in the static MAC address table. See the segment of MAC Address 
Table—Static MAC Addresses.  
						

							
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Port Trunk 
Port trunking is the combination of several ports or network cables to expand the 
connection speed beyond the limits of any  one single port or network cable. Link 
Aggregation Control Protocol (L ACP), which is a protocol running on layer 2, provides 
a standardized means in accordance with  IEEE 802.3ad to bundle several physical 
ports together to form a single logical cha nnel. All the ports within the logical channel 
or so-called logical aggregator work at  the same connection speed and LACP 
operation requires full-duplex mode. 
 
 
  
						

							
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Aggregator setting 
This section provides Port Trunk-Aggregator  Setting of each port from the Switch, the 
screen in Figure 5-20 appears. 
Figure 5-20:  Port Trunk-Aggregator Setting inte rface (two ports are added to the left field with 
LACP enabled) 
 
This page includes the following fields: 
 
Object Description 
System Priority:  A value which is used to identify the active LACP. The Managed  Industrial 
Switch with the lowest value has the highest priority and is selected as 
the active LACP peer of the trunk group. 
Group ID: 
There are 13 trunk groups to be selected. Assign the Group ID to the 
trunk group. 
LACP: When enabled, the trunk group is using LACP. A port which joins an LACP 
trunk group has to make an agreement with its member ports first. 
Please notice that a trunk group, including member ports split between 
two switches, has to enable the LACP function of the two switches. When 
disabled, the trunk group is a static trunk group. The advantage of having 
the LACP disabled is that a port joins the trunk group without any 
handshaking with its member ports; 
but member ports won’t know that 
they should be aggregated together to form a logic trunk group.  
						

							
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Object Description 
Work ports: This column field allows the user to type in the total number of active port 
up to four. With LACP static trunk group, e.g. you assign four ports to be 
the members of a trunk group whose work ports column field is set as 
two; the exceed ports are standby/redundant ports and can be 
aggregated if working ports fail. If it is a static trunk group (non-LACP), the 
number of work ports must equal the total number of group member 
ports. 
 
Aggregator Information 
When you have setup the LACP aggregator, 
you will see relavent information in here. 
•  LACP disabled 
Having set up the aggregator  setting with LACP disabled, you will see the local static 
trunk group information on the ta b of Aggregator Information. 
Figure 5-21:  Assigning 2 ports to a trunk group with LACP disabled 
 
 
  
						

							
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Figure 5-22:  Static Trunking Group information 
 
This page includes the following fields: 
 
Object Description 
Group Key:  This is a read-only column field that displays the trunk group ID. 
Port Member:  This is a read-only column field that displays the members of this 
static trunk group. 
 
• 
LACP enabled 
Having set up the aggregator  setting with LACP enabled, you will see the trunking 
group information between two switches on  the tab of Aggregator Information. 
o  Switch 1 configuration 
1. Set System Priority of the trunk group. The default is 1. 
2. Select a trunk group ID by pull down the drop-down menu bar. 
3. Enable LACP. 
4. Include the member ports by clicking the Add button after selecting the port 
number and the column field of Wo rk Ports changes automatically. 
  
						

							
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Figure 5-23:  Aggregation Information of Switch 1 
 
5. Click on the tab of Aggregator Information to check the trunked group information 
as the illustration shown above af ter the two switches configured. 
o  Switch 2 configuration 
6. Set System Priority of the trunk group. For example: 32768. 
7. Select a trunk group ID by pull down the drop-down menu bar. 
8. Enable LACP. 
9. Include the member ports by clicking the Add button after selecting the port 
number and the column field of Wo rk Ports changes automatically. 
Figure 5-24:  Switch 2 configuration interface 
 
10. Click on the tab of Aggregator Information to check the trunked group 
information as the illustration shown abo ve after the two switches configured.  
						

							
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Figure 5-25:  Switch 1 Aggregator Information 
 
State Activity 
Having set up the LACP aggregator on  the tab of Aggregator Setting, you can 
configure the state activity  for the members of the LACP  trunk group. You can tick or 
cancel the checkbox beside the state label.  When you remove the tick mark of the 
port and click APPLY, th e port state activity will change to Passive. 
Figure 5-26:  State Activity of Switch 1 
 
This page includes the following fields: 
 
Object Description 
Active:  The port automatically sends LACP protocol packets. 
Passive:  The port does not automatically send LACP protocol packets, and 
responds only if it receives LACP protocol packets from the opposite 
device. 
  
						

							
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Figure 5-27:  State Activity of Switch 2 
 
NOTE: A link having two passive LACP node s will not perform dynamic LACP trunk 
because both ports are waiting for an LACP  protocol packet from the opposite device. 
Port Mirroring 
The Port mirroring is a method for monitor traffic in switched networks. Traffic 
through ports can be monitored by one specif ic port, which means traffic goes in or 
out monitored (source) ports will be dup licated into mirror (destination) port. 
Figure 5-28:  Port Trunk - Port Mirroring interface 
  
						

							
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This page includes the following fields: 
 
Object Description 
Destination Port:  There is only one port can be selected
 to be destination (mirror) port for 
monitoring both RX and TX traffic which come from source port. Or, 
use one of two ports for monitoring RX traffic only and the other one 
for TX traffic only. User can connect mirror port to LAN analyzer or 
Netxray. 
Source Port:  The ports that user wants to monitor. All monitored port traffic will be 
copied to mirror (destination) port. User can select multiple source 
ports by checking the RX or TX check boxes to be monitored. 
 
Rate Limiting 
You can set up every ports bandwid
th rate and frame limitation type. 
•  Ingress Limit Frame type: select the frame ty pe that wants to filter. There are four 
frame types for selecting: 
o  All 
o  Broadcast/Multicast/Flooded Unicast  
o  Broadcast/Multicast 
o  Broadcast only  
Broadcast/Multicast/Flooded Unicast, Broa dcast/Multicast and Broadcast only types 
are only for ingress frames. The eg ress rate only supports All type.  
						

							
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Figure 5-29:  Rate Limiting interface 
 
• All the ports support port ingress and eg ress rate control. For example, assume 
port 1 is 10Mbps, users can set its effecti ve egress rate is 1Mbps, ingress rate is 
500Kbps. The switch performs the ingress  rate by packet counter to meet the 
specified rate 
o  Ingress: Enter the port effective ingr ess rate (The default value is 0). 
o  Egress: Enter the port effective egre ss rate (The default value is 0). 
•  And then, click APPLY to apply the settings 
Protocol 
This section has the following items: 
• VLAN 
•  Rapid Spanning Tree protocol 
• SNMP 
• QoS 
• IGMP Snooping