Brocade MLX Series and NetIron Family (Supporting Multi-Service IronWare R05.6.xx) - Manual (Page 19)

Brocade MLX Series and NetIron Family Documentation Updates 11
53-1003301-07
LAG formation rules
1
• All ports must have the same PBR configuration before deployment. During deployment, the
configuration on the primary port is replicated to all ports. On undeployment, each port inherits
the same PBR configuration.
• All static LAG ports must have the same LACP BPDU forwarding configuration.
• A LAG member and an individual port cannot use the same name.
• VLAN and inner-VLAN translation
The LAG is rejected if any LAG port has VLAN or inner-VLAN translation configured
• Layer 2 requirements:
The LAG is rejected if the LAG ports:
• Do not have the same untagged VLAN component.
• Do not share the same SuperSpan customer ID (CID).
• Do not share the same VLAN membership or do not share the same uplink VLAN
membership
• Do not share the same protocol-VLAN configuration
• Are configured as mainly primary and secondary interfaces
• Static LAG deployment will fail if the if LACP BPDU forwarding is disabled on the primary
port and enabled on one or more of the secondary ports.
• Layer 3 requirements:
The LAG is rejected if any of the secondary LAG port has any Layer 3 configurations, such as
IPv4 or IPv6 address, OSPF, RIP, RIPNG, IS-IS, and so on.
• Layer 4 (ACL) requirements:
• All LAG ports must have the same ACL configurations; otherwise, the LAG is rejected.
• A LAG cannot be deployed if any of the member ports has ACL-based mirroring configured
on it.
• A port with ACL-based mirroring configured on it cannot be added to a LAG.
• The router can support up to 256 LAGs, and each LAG can contain up to 64 member ports.
• If the router is configured to support 32 LAGs by using the system-max trunk-num
command, the maximum number of LAG ports is 64.
• If the router is configured to support 64 LAGs by using the system-max trunk-num
command, the maximum number of LAG ports is 32.
• If the system-max trunk-num is set to 256, the maximum number of LAG ports supported
is 8.
• The default system-max trunk-num is set to 128, and each LAG can have up to 16 member
ports
• For 100G ports, the configurable ranges are from 2 to 16 100G LAGs.
• When configuring a static or dynamic LAG, if trunk load sharing type is set to “per-packet” the
maximum number of “per-packet” trunks is set to 4.
• Ports can be in only one LAG group. All the ports in a LAG group must be connected to the
same device at the other end. For example, if port 1/4 and 1/5 in Device 1 are in the same
LAG group, both ports must be connected to ports in Device 2 or in Device 3. You cannot have
one port connected to Device 2 and another port connected to Device 3.
• All LAG member properties must match the primary port of the LAG with respect to the
following parameters: