Configuration Guide User guide

BigIron RX Series Configuration Guide 239
53-1002484-04
LAG formation rules
8
• Make sure the device on the other end of the trunk link can support the same number of ports
in the link.
Figure 13 displays and example of a valid, Keep ALIVE LAG link between two devices. This
configuration does not aggregate ports but uses the LACP PDUs to maintain the connection status
between the two ports.
FIGURE 13 Example of a 1-port keep alive LAG
Figure 14 shows an example of a valid 2-port LAG link between devices where the ports on each
end are on the same interface module. Ports in a valid 2-port LAG on one device are connected to
two ports in a valid 2-port LAG on another device.
FIGURE 14 Example of 2-port LA
Figure 15 shows and example of two devices connected over a 4 port LAG where the ports on each
end of the LAG are on different interface modules.
Port1/1
Port1/2
Port1/3
Port1/4
Port1/5
Port1/6
Port1/7
Port1/8
Port1/1
Port1/2
Port1/3
Port1/4
Port1/5
Port1/6
Port1/7
Port1/8
Port1/1
Port1/2
Port1/3
Port1/4
Port1/5
Port1/6
Port1/7
Port1/8
Port1/1
Port1/2
Port1/3
Port1/4
Port1/5
Port1/6
Port1/7
Port1/8