ICX 7650 Configuration Notes

Consider these items when configuring an ICX 7650 stack:
  • On ICX 7650 devices, "rear module" refers to Module 3.
  • Stacking ports operate in 100-Gbps stacking mode by default when an ICX 7650 device has no rear-module configuration.
  • Optics and stacking ports differ for 100-Gbps and 40-Gbps stacking. Connections remain down if you attempt to configure stacking with a port speed mismatch. It is the user's responsibility to change the optics.
  • To join a stack, a new ICX 7650 unit must be preconfigured to match the rear-module configuration of the existing stack.
  • You cannot issue a rear-module stack-40g or no rear-module command unless the data uplink configuration has been removed from the ports.
  • When a stack has been formed, you cannot configure the rear module for uplink mode without removing the stacking configuration from all stack members and rebooting the units.
  • Stack units must be configured with matching High-Gig Ethernet settings.
  • When the rear module is operating in uplink mode, you can configure stacking offline; however, stacking elections are blocked. When you execute the write memory command, you will be prompted to save or erase the stacking configuration. If you elect to erase the stacking configuration with the erase startup-config command, all the stacking configuration, including the stacking.boot file configuration, is removed.
  • Stacking or uplink mode settings must be saved with the write memory command and do not become active until the reload command is issued for the stack or standalone unit.
  • If uplink mode is active on the ICX 7650 rear module, Module 2 cannot be used for uplink.
  • If the ICX 7650 rear module has been operating in stacking mode, is reconfigured for uplink mode, and later is returned to stacking mode, Module 2 uplink port configuration may be lost. When Module 3 has been configured with the command rear-module uplink-100g or rear-module uplink-40g and before the user executes the write memory command to save the configuration, the following warning message appears: "After reload, rear module ports will be configured as uplink ports, and module 2 will be unused. Existing configurations for ports in module 2 may be removed."
  • A configuration mismatch with the physical module installed as Module 2 can cause a stacking unit to become non-operational. The mismatch can be resolved by removing the unit from the stack so that the active controller relearns its configuration or by correcting module information. Refer to Resolving Module 2 mismatches in an ICX 7650 stack for more information. For additional information on Module 2, refer to the ICX 7650 Switch Hardware Installation Guide.
Parent topic: ICX 7650 Stack Configuration Overview