Configure Sharing Address-Based - Extreme Networks ExtremeWare XOS Command Reference Manual

Version 11.0

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configure sharing address-based

configure sharing address-based [L2 | L2_L3 | L2_L3_L4 |L2_L3_CHK_SUM |

L2_L3_L4_CHK_SUM]

Configures the part of the packet examined by the switch when selecting the egress port for

transmitting load-sharing data.

Syntax Description

L2_L3_CHK_SUM

L2_L3_L4_CHK_SUM

The default setting is L2.

Usage Guidelines

This feature is available using the address-based load-sharing algorithm only. The address-based

load-sharing algorithm uses addressing information to determine which physical port in the

load-sharing group to use for forwarding traffic out of the switch. Addressing information is based on

the packet protocol, as follows:

• IP packets—Uses the source and destination MAC and IP address, and the TCP port number.

• All other packets—Uses the source and destination MAC address.

This command specifies the part of the packet header that the switch examines to select the egress port

for address-based load-sharing trunks. The address-based load-sharing setting is global and applies to

all load-sharing trunks that are address-based. You change this setting by issuing the command again

with a different option. (Because the algorithms L2_L3__CHK_SUM and L2_L3_L4_CHK_SUM use the

IP check sum as part of the decision for the egress port selection, these algorithms do not guarantee the

packet sequencing between the clients.)

To verify your configuration, use the

This is a global setting and applies to all load-sharing trunks that are address-based.

If you do not explicitly select an algorithm, the port-based scheme is used. However, the address-based

algorithm has a more even distribution and is the recommended choice.

ExtremeWare XOS 11.0 Command Reference Guide