Cisco SR224T Administration Guide - Page 105

Port Management Configuring Link Aggregation 9 The switch supports two modes of load balancing: • By MAC Addresses-Based on the destination and source MAC addresses of all packets. • By IP and MAC Addresses-Based on the destination and source IP addresses for IP packets, and destination and source MAC addresses for non-IP packets. LAG Management In general, a LAG is treated by the system as a single logical port. In particular, the LAG has port attributes similar to a regular port, such as state and speed. The switch supports four LAGs. Every LAG has the following characteristics: • All ports in a LAG must be of the same media type. • To add a port to the LAG, it cannot belong to any VLAN except the default VLAN. • Ports in a LAG must not be assigned to another LAG. • No more than eight ports are assigned to a static LAG and no more than 16 ports can be candidates for a dynamic LAG. • All the ports in a LAG must have auto-negotiation disabled, although the LAG can have auto-negotiation enabled. • When a port is added to a LAG, the configuration of the LAG is applied to the port. When the port is removed from the LAG, its original configuration is reapplied. • Protocols, such as Spanning Tree, consider all the ports in the LAG to be one port. Cisco Small Business 200 Series Smart Switch Administration Guide 106