20! Plexxi Switch 3eq Installation Guide (Switch-Control 3.0.0-3.2.x)! !
6 Creating!a!Direct!Connect!Network!
You can directly connect Plexxi 3eq switches using a QSFP28-to-QSFP28 cable such as DAC or AOC.
You cannot directly connect Plexxi 3eq switches in a network that contains Plexxi switches with Plexxi
LightRail connectors and cabling, including Switch 2p or 2sp.
You should not directly connect Plexxi 3eq switches in a network if the deployment is expected to grow
beyond seven switches.
Connection!Guidelines!
NOTE: For information on 3eq LightRail ports, refer to the section, I/O Panel Ports.
• Three connection types are allowed between two Plexxi 3eq switches:
W1-E1, W2-E2, W3-E3
QSFP28 DAC or AOC cables connect from the top ports (W1, W2, W3) of one switch to the bottom
ports (E1, E2, E3), East and West ports of the same number are allowed to connect.
• Number the 3eq switches you want to connect starting with 1. For example, if you are connecting
five 3eq switches, number them 1, 2, 3, 4, 5. You can affix a label to the switch for identification.
• Start the connection from Switch 3eq 1, go on to Switch 3eq 2 next, through to the last Switch 3eq in
the Plexxi fabric.
• Start connections from W1, then W2, then W3 for each Switch 3eq.
• Connect W1 to E1, W2 to E2, and W3 to E3. For each switch, connect W1 to the next numbered
switch E1, W2 to the E2 port of the switch that comes next in order, and W3 to the E3 port of the
switch that comes next again in order. For example, you plug one end of the DAC or AOC cable in
W1 on Switch 3eq 1 and the other end in E1 on the Switch 3eq 2.
Two-Switch!Fabric!
These are the connections to create a 2-switch Plexxi fabric.
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