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Configuring Static Link Aggregation Static Link Aggregation Overview
OmniSwitch 6800/6850/9000 Network Configuration Guide June 2006 page 13-5
Static Link Aggregation Overview
Link aggregation allows you to combine 2, 4, or 8 physical connections into large virtual connections
known as link aggregation groups. You can configure up to 32 link aggregation groups per a standalone
switch or a stack of switches. Each group can consist of 2, 4, or 8 10-Mbps, 100-Mbps, 1-Gbps, or 10-
Gbps Ethernet links.
You can create Virtual LANs (VLANs), 802.1Q framing, configure Quality of Service (QoS) conditions,
and other networking features on link aggregation groups because the switch’s software treats these virtual
links just like physical links. (See “Relationship to Other Features” on page 13-6 for more information on
how link aggregation interacts with other software features.)
Load balancing for Layer 2 non-IP packets is on a MAC address basis and for IP packets the balancing
algorithm uses IP address as well. Ports must be of the same speed within the same link aggregate group.
Alcatel’s link aggregation software allows you to configure the following two different types of link
aggregation groups:
Static link aggregate groups
Dynamic link aggregate groups
This chapter describes static link aggregation. For information on dynamic link aggregation, please refer
to Chapter 14, “Configuring Dynamic Link Aggregation.”
Static Link Aggregation Operation
Static link aggregate groups are virtual links between two nodes consisting of 2, 4, or 8 10-Mbps, 100-
Mbps, or 1-or 10-Gbps fixed physical links. You can configure up to 32 link aggregation groups per a
standalone switch or a stack of switches.
Static aggregate groups can be created between:
two OmniSwitch 6800 switches.
two OmniSwitch 6850 switches.
two OmniSwitch 9000 switches.
an OmniSwitch 6800 switch and an OmniSwitch 6850, OmniSwitch 9000, OmniSwitch 7700/7800,
OmniSwitch 8800, or OmniSwitch 6600 Series switch.
an OmniSwitch 6850 switch and an OmniSwitch 6800, OmniSwitch 9000, OmniSwitch 7700/7800,
OmniSwitch 8800, or OmniSwitch 6600 Series switch.
an OmniSwitch 9000 switch and an OmniSwitch 6800, OmniSwitch 6850, OmniSwitch 7700/7800,
OmniSwitch 8800, or OmniSwitch 6600 Series switch.
an OmniSwitch 6800, 6850, or 9000 switch and an early-generation Alcatel switch, such as an Omni
Switch/Router
However, static aggregate groups cannot be created between OmniSwitch 6800, 6850, or 9000 switches
and some switches from other vendors.
The figure below shows a static aggregate group that has been configured between Switch A and Switch
B. The static aggregate group links four ports on a single OS9-GNI-C24 on Switch A to two ports on one
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