Load sharing on the switch, Load-sharing algorithms – Extreme Networks Summit 300-48 User Manual

Page 57

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Load Sharing on the Switch

Summit 300-48 Switch Software User Guide

57

Load Sharing on the Switch

Load sharing with switches allows you to increase bandwidth and resiliency by using a group of ports
to carry traffic in parallel between switches. The sharing algorithm allows the switch to use multiple
ports as a single logical port. For example, VLANs see the load-sharing group as a single logical port.
Most load-sharing algorithms guarantee packet sequencing between clients.

If a port in a load-sharing group fails, traffic is redistributed to the remaining ports in the load-sharing
group. If the failed port becomes active again, traffic is redistributed to include that port.

This feature is supported between Extreme Networks switches only, but may be compatible with
third-party trunking or link-aggregation algorithms. Check with an Extreme Networks technical
representative for more information.

NOTE

Load sharing must be enabled on both ends of the link or a network loop may result. The load-sharing
algorithms do not need to be the same on both ends.

Load-Sharing Algorithms

Load-sharing algorithms allow you to select the distribution technique used by the load-sharing group
to determine the output port selection. Algorithm selection is not intended for use in predictive traffic
engineering.

enable sharing <port> grouping <portlist>
{address-based}

Defines a load-sharing group of ports. The ports
specified in <

portlist

> are grouped to the

master port. The optional load-sharing algorithm,
address-based, uses addressing information as
criteria for egress port selection.

restart ports <portlist>

Resets autonegotiation for one or more ports by
resetting the physical link.

show ports {<portlist>} collisions

Displays real-time collision statistics.

show ports {<portlist>} configuration

Displays the port configuration.

show ports {<portlist>} info {detail}

Displays detailed system-related information.

show ports {<portlist>} packet

Displays a histogram of packet statistics.

show ports {<portlist>} rxerrors

Displays real-time receive error statistics.

show ports {<portlist>} stats

Displays real-time port statistics.

show ports {<portlist>} txerrors

Displays real-time transmit error statistics.

show ports {<portlist>} utilization

Displays real-time port utilization information. Use
the [Spacebar] to toggle between packet, byte,
and bandwidth utilization information.

show sharing address-based

Displays the address-based load sharing
configuration.

unconfig ports <portlist> display-string
<string>

Clears the user-defined display string from a port.

Table 15: Switch Port Commands (continued)

Command

Description

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