Chapter 4: Web management
NS3550-8T-2S Industrial Managed Switch User Manual
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placed in a standby mode for redundancy if one of the other ports fails. If the group is
defined as a local static link aggregationing group, then the number of ports must be
the same as the group member ports.
The aggregation code ensures that frames belonging to the same frame flow (for
example, a TCP connection) are always forwarded on the same link aggregation
member port. Reording of frames within a flow is therefore not possible. The
aggregation code is based on the following information:
• Source MAC
• Destination MAC
• Source and destination IPv4 address.
• Source and destination TCP/UDP ports for IPv4 packets
Normally, all five contributions to the aggregation code should be enabled to obtain the
best traffic distribution among the link aggregation member ports. Each link aggregation
may consist of up to 10 member ports. Any quantity of link aggregations may be
configured for the device (they are only limited by the quantity of ports on the device).
To configure a proper traffic distribution, the ports within a link aggregation must use
the same link speed.
Static aggregation
The Aggregation Mode Configuration page is used to configure the aggregation hash
mode and the aggregation group. The aggregation hash mode settings are global,
whereas the aggregation group relate to the current device, as reflected by the page
header.
The page includes the following fields:
Object
Description
Source MAC Address
The Source MAC address can be used to calculate the destination
port for the frame. Select the check box to enable the use of the
Source MAC address, or uncheck it to disable. By default, the Source
MAC Address is enabled.
Destination MAC Address
The Destination MAC Address can be used to calculate the
destination port for the frame. Select the check box to enable the use
of the Destination MAC Address, or uncheck it to disable. By default,
the Destination MAC Address is disabled.
IP Address
The IP address can be used to calculate the destination port for the