Configuration Guide User guide

706 FastIron Configuration Guide
53-1002494-02
Trunk group overview
Table 133 shows how the FastIron X Series devices load balance traffic across the ports in a trunk
group.
Table 134 describes how the FastIron stackable devices load balance traffic.
Adding Layer 2 information to trunk hash output
NOTE
Adding Layer 2 information to trunk hash output is not supported on FastIron X Series devices.
FastIron stackable devices support the option to include Layer 2 information in the trunk hash
calculation for IP packets. Use the following CLI command.
Brocade(config)# trunk hash-options include-layer2
The trunk hash-options include-layer2 command adds 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
TABLE 133 Trunk group load sharing on FastIron X Series devices
Traffic type Load balancing method
Layer 2 Bridged non-IP Source and destination MAC addresses
Layer 2 Bridged TCP/UDP Source and destination MAC addresses, source and destination IP addresses, and
source and destination TCP/UDP ports
Layer 2 Bridged IP
(non-TCP/UDP)
Source and destination MAC addresses, and source and destination IP addresses
Layer 3 Routed traffic Source and destination IP addresses and protocol field
TABLE 134 Trunk group load sharing on FastIron stackable devices
Traffic type Load balancing method
Layer 2 Bridged Non-IP Source and destination MAC addresses
Layer 2 Bridged IPv4
TCP/UDP
Source and destination IP addresses, and source and destination TCP/UDP ports
Layer 2 Bridged IPv4
Non-TCP/UDP
Source and destination IP addresses
Layer 2 Bridged IPv6
TCP/UDP
Source and destination IP addresses, source and destination TCP and UDP ports,
and flow label
Layer 2 Bridged IPv6
Non-TCP/UDP
Source and destination TCP and UDP ports, and flow label
Layer 3 Routed traffic Source and destination IP addresses and protocol field