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Introduction Configuring LAG

Software Reference for SwitchBlade x3100 Series Switches (Layer Two Switching)

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The hash select can be set at any time and persists across system or card reboots. When new LAGs are cre-

ated, their hash select will be determined by the switch-wide hash select setting. The SHOW SWITCH com-

mand can be used to view the configured hash select.

Using this SBx3112-specific command

SET SWITCH HASH SELECT, the user controls the global hash selection

setting. The SHOW SWITCH

command includes a field to display the current hash selection setting, and the

SHOW LAG

command uses the existing “Select Criteria” field to show the current hash selection setting.

officer SEC>> show switch

--- Switch Configuration ------------------------------------------------

Learning.............................. On

Ageing Timer.......................... On

Ageingtimer........................... 300

Age-Only FDB Clear.................... Off

Number of SM Ports.................... 48

Number of NM Ports.................... 0

Number of HVLAN....................... 0

Number of Standard VLAN............... 1

Number of UFO VLAN.................... 0

Hash Select........................... ALL

4.3.2 Configuring LAG

4.3.2.1 Default Configuration

When an SBx3112 switch is initially booted up, LAG is configured as follows:

• There are no LAGs configured. (‘No LAGs currently exist’)

4.3.2.2 Configuration Guidelines

Following are the provisioning rules to follow when creating LAG groups:

• The SBx3112 supports a maximum of 127 LAGs configured on the system at one time. A maximum of eight

member ports per LAG is supported.

• The LAG group ID (lag-ID) can be defined using an interface as well as a set of interfaces.

• Other features, such as VLAN and STP, can be configured against the lag-id or LAG interface ID.

• All ports in the LAG group must share the same untagged and tagged VLAN configuration.

Note: For interoperability of switches from different vendors, the control of data traffic involves the Link

Aggregation Control Protocol (LACP, defined in IEEE 802.3ad), which contains rules for configuring

Allied Telesis SwitchBlade x3100 Series User Manual

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