Configuration Guide User guide

700 FastIron Configuration Guide
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Trunk group overview
• 48-port 10/100/1000 Mbps (RJ45) Ethernet PoE interface module (SX-FI48GPP) and
IPv4/IPv6 interface modules or management modules with user ports.
• Combination of different generations of ports cannot be members of the same trunk group
under the following hardware configurations:
- 24-port fiber and copper Ethernet PoE/Fiber interfaces (SX-FI24GPP, SX-FI24GF) and
IPv4/IPv6 interface modules or management modules with user ports
- 2-port 10G and 8-port 10G interfaces (SX-FI8XG, SX-FI2XG) and the IPv4/IPv6 interface
modules or management modules with user ports
• The FastIron SX chassis supports up to 12 ports per trunk (both static and LACP) and a
maximum of 255 trunk groups only when the following interface modules are installed in the
chassis:
- SX-FI48GPP—48-port 10/100/1000 Mbps Ethernet PoE interface module
- SX-FI24GPP—24-port Gigabit Ethernet copper interface module
- SX-FI24HF—24-port Gigabit Ethernet fiber interface module
- SX-FI2XG—2-port 10 Gigabit Ethernet interface module
- SX-FI8XG—8-port 10 Gigabit Ethernet interface module
• Cross module trunking between different generation cards is not recommended when the SX
chassis is populated with multiple generation cards (First, second and third). Cross module
trunking is only supported between the same generation SX cards.
• You cannot configure a port as a member of a trunk group if 802.3ad link aggregation is
enabled on the port.
• Unlike the FES and other Brocade devices, trunk groups on devices listed in Table 132 are not
classified as switch trunk groups or server trunk groups.
• Trunking is supported on 10-GbE ports.
• You cannot combine 1-Gbps and 10-Gbps ports in the same trunk group.
• For FastIron WS devices, mixed speed static and dynamic (LACP) trunks are not allowed and if
configured will not come up. In these devices, the first four ports are 1 Gbps, the remaining
ports are 10/100 Mbps. With both static and LACP trunking, all members of the trunk should
be either the 1 Gbps ports or the 10/100 Mbps ports.
• Port assignment on a module need not be consecutive. The port range can contain gaps. For
example, you can configure ports 1, 3, and 4 (excluding 2). Refer to “Support for flexible trunk
group membership” on page 704.
• Although the FastIron devices have port ranges, they do not apply to trunk groups.
• You can select any port to be the primary port of the trunk group.
• Make sure the device on the other end of the trunk link can support the same number of ports
in the link. For example, if you configure a 3-port trunk group on the FESX and the other end is
a different type of switch, make sure the other switch can support a 3-port trunk group.
• All the ports must be connected to the same device at the other end.
• All trunk group member properties must match the lead port of the trunk group with respect to
the following parameters:
- Port tag type (untagged or tagged port)
- Statically configured port speed and duplex
- QoS priority