Configuration: Link Aggregation
Overview
This section provides information for Link Aggregation in Configuration.
This chapter shows you how to logically aggregate physical links to form one logical, higher bandwidth link.
Link Aggregation
Link aggregation (trunking) is the grouping of physical ports into one logical higher-capacity link. You may want to trunk ports if for example, it is cheaper to use multiple lower-speed links than to under-utilize a high-speed, but more costly, single-port link.
However, the more ports you aggregate then the fewer available ports you have. A trunk group is one logical link containing multiple ports.
The Switch supports both static and dynamic link aggregation.
In a properly planned network, it is recommended to implement static link aggregation only. This ensures increased network stability and control over the trunk groups on your Switch.Global Settings
Use this screen to configure global Link Aggregation settings. Click Configuration > Link Aggregation > Global.
The following table describes the labels in this screen.
Label | Description |
|---|---|
Global | |
LACP State | Select Enable to activate the link aggregation control protocol. |
LACP System Priority | LACP system priority is a number between 1 and 65,535. The switch with the lowest system priority (and lowest port number if system priority is the same) becomes the LACP “server”. The LACP “server” controls the operation of LACP setup. Enter a number to set the priority of an active port using Link Aggregation Control Protocol (LACP). The smaller the number, the higher the priority level. |
Load Balance Algorithm | Select the outgoing traffic distribution type. Packets from the same source and/or to the same destination are sent over the same link within the trunk. By default, the Switch uses the IP/MAC Address distribution type. If the Switch is behind a router, the packet’s destination or source MAC address will be changed. In this case, set the Switch to distribute traffic based on its IP address to make sure port trunking can work properly. Select MAC Address to distribute traffic based on a combination of the packet’s source and destination MAC addresses. Select IP/MAC Address to distribute traffic based on a combination of the packet’s source and destination IP addresses. |
Apply | Click Apply to save the changes. |
Cancel | Click Cancel to discard the changes. |
LAG Management
Use this screen to view LAG management settings. Click Configuration > Link Aggregation > LAG Management.
The following table describes the labels in this screen.
Label | Description |
|---|---|
LAG Management | |
LAG | Displays the link aggregation group (LAG), that is, one logical link containing multiple ports. |
Name | Displays the name of the link aggregation group. |
Type | This field displays how these ports were added to the trunk group. It displays: Static – if the ports are configured as static members of a trunk group. LACP – if the ports are configured to join a trunk group through LACP. |
Link Status | Displays link status as either Link up or Link down. |
Active Member | Displays if this member is an active member of a trunk. |
Standby Member | Displays if this member is an standby member of a trunk. |
Action | |
Edit | Click Edit to make changes to the entry. |
Delete | Click Delete to remove the entry. |
Add | Click Add to create a new LAG Management entry. |
LAG Management (Add)
Use this screen to add a LAG. Click Configuration > Link Aggregation > LAG Management > Add.
The following table describes the labels in this screen.
Label | Description |
|---|---|
LAG Management | |
LAG | Select the link aggregation group (LAG). |
Name | Enter the name of this entry. |
Type | Select Static or LACP. |
Member Ports | Select the member ports to be part of the LAG. |
Apply | Click Apply to save the changes. |
Cancel | Click Cancel to discard the changes. |
LAG Port
Use this screen to view LAG port settings. Click Configuration > Link Aggregation > LAG Port.
The following table describes the labels in this screen.
Label | Description |
|---|---|
LAG Port | |
LAG | Displays the LAG index value. |
Name | Displays the LAG name. |
Port Type | Displays the port type. |
State | Displays the state as Enable or Disable. |
Speed | Displays the speed value as Auto, Auto-10M, Auto-100M, Auto-1000M, Auto-10/100M, 10M, 100M, or 1000M. |
Duplex | Displays the duplex value as Full, Half, or Auto. |
FlowCtrl State | Displays whether flow control is Enable or Disable. |
FlowCtrl Status | Displays whether flow control is in use (Enable) or not (Disable). |
Edit | Select this checkbox to configure the properties of a port. Click the Edit button change the properties of the port. |
Cancel | Click Cancel to discard the changes. |
LAG Port Edit
Use this screen to edit a LAG port. Click Configuration > Link Aggregation > LAG Port > Edit.
The following table describes the labels in this screen.
Label | Description |
|---|---|
LAG Port | |
LAG | Displays the LAG index values. |
State | Select the state to be Enable or Disable. |
Speed | Displays the speed value as Auto, 10M, 100M, or 1000M. |
Flow Control | Select Enable to use the flow control feature. |
Apply | Click Apply to save the changes. |
Cancel | Click Cancel to discard the changes. |
LACP Port
Use this screen to view LACP Port settings. Click Configuration > Link Aggregation > LACP Port.
The following table describes the labels in this screen.
Label | Description |
|---|---|
LACP Port | |
Port | Displays the port index number. |
Priority | Displays the priority value. |
Timer (sec) | Displays the Timer value in seconds. Timeout is the time interval between the individual port exchanges of LACP packets in order to check that the peer port in the trunk group is still up. If a port does not respond after three tries, then it is deemed to be “down” and is removed from the trunk. Set a short timeout (one second) for busy trunked links to ensure that disabled ports are removed from the trunk group as soon as possible. |
Edit | Select this checkbox to configure the properties of a port. Click the Edit button change the properties of the port. |
Cancel | Click Cancel to discard the changes. |
LACP Port Edit
Use this screen to edit a LACP Port. Click Configuration > Link Aggregation > LACP Port > Edit.
The following table describes the labels in this screen.
Label | Description |
|---|---|
LACP Port | |
Port List | Displays the list of port index numbers to be configured. |
Priority | Enter a value for the port priority. The number can be between 1 and 65,535. |
Timer | Select a timer value of either 1 second or 30 seconds. |
Apply | Click Apply to save the changes. |
Cancel | Click Cancel to discard the changes. |