Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 139)

LAG hashing on stacking products
This configuration is required when multicast routing is configured on a tunnel interface and if the IP
multicast packets are tunnel terminating. For example, when ip pim, ip pim-sparse , ip igmp proxy
multicast routing commands are configured on a tunnel interface.
Removing Layer 2 information from LAG hash output
NOTE
Removing Layer 2 information from LAG hash output is not supported on FastIron X Series devices.
FastIron stackable devices support the option to exclude Layer 2 information in the LAG hash
calculation for IP packets.
Brocade(config)# lag-hash exclude-l2mac
The lag-hash exclude-l2mac command removes Layer 2 information (text in bold) to the following
load-balancing parameters:
• Non-IP: Source and destination MAC addresses
• IPv4 TCP/UDP: Source and destination IP addresses, and source and destination TCP/UDP ports,
Source MAC , Destination MAC
• IPv4 Non-TCP/UDP: Source and destination IP addresses, Source MAC , Destination MAC
• IPv6 TCP/UDP: Source and destination IP addresses, source and destination TCP and UDP ports,
and flow label, Source MAC , Destination MAC
• IPv6 Non-TCP/UDP: Source and destination TCP and UDP ports, and flow label, Source MAC ,
Destination MAC
Configuring a LAG
The following configuration procedures are used to configure a LAG. Depending upon whether you are
configuring a static, dynamic or keep-alive LAG, the configuration procedures may or may not apply as
described:
• Creating a Link Aggregation Group - Required for all static, dynamic or keep alive LAGs.
• Adding Ports to a LAG - Required for all static, dynamic, or keep alive LAGs. A keep alive LAG
contains only one port while static and dynamic LAGs can have 1 to 12 ports.
• Configuring the Primary Port for a LAG - Required for all static and dynamic LAGs. Since a keep
alive LAG contains only one port, it is unnecessary to configure this parameter.
• Configuring the Load Sharing Type - Optional for all static and dynamic LAGs. Since a keep alive
LAG contains only one port, it is unnecessary to configure this parameter.
• Specifying the LAG Threshold for a LAG Group - Optional for static and dynamic LAGs. Since a keep
alive LAG contains only one port, it is unnecessary to configure this parameter.
• Configuring an LACP Timeout - Optional for dynamic and keep alive LAGs.
LAG hashing on stacking products
FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide 139
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