Adding a reserved PE configuration on the CB

PE unit configuration present in the CB active controller before the corresponding PE unit joins the CB is called reserved PE configuration.

Note: It is not necessary to configure a reserved PE configuration for a PE to join. The CB learns module and SPX port or LAG information from the PE if the assigned ID has no reserved configuration.

You can create PE configuration on the CB to be applied later to a joining PE unit. You must specify an SPX unit number and the ICX 7150, ICX 7250, or ICX 7450 modules that match the new PE unit.

When you configure a reserved PE unit on the CB, the system does not generate any SPX ports by default. The system learns SPX ports or LAGs from the PE unit when it joins. If you configure SPX ports or LAGs as part of a reserved unit, the CB will push your port or LAG configuration to the PE unit when it joins, after checking that the SPX port or LAG configuration will not break its connection with the PE.

Note: PE ID assignment is based on the pe-id configuration under the spx cb-configure command. If the joining PE port does not match any pe-id configuration, it is assigned its old ID if it is available. If the joining unit has no old ID or the old ID is not available, it is assigned an unused ID.

For 08.0.91 and later: All samples need to be replaced with samples based on an ICX 7650 stack.
The following example shows SPX unit 20 being created on the CB as a reserved configuration.

ICX7750-26Q Router# configure terminal
ICX7750-26Q Router(config)# spx unit 20
ICX7750-26Q Router(config-spx-unit-20)# module 1 ?
  icx7450-24-port-management-module
  icx7450-24p-poe-port-management-module
  icx7450-32zp-poe-management-module
  icx7450-48-port-management-module
  icx7450-48f-sf-port-management-module
  icx7450-48p-poe-management-module
ICX7750-26Q Router(config-spx-unit-20)# module 1 icx7450-48-port-management-module
ICX7750-26Q Router(config-spx-unit-20)# module 2 ?
  icx7400-sfp-4port-4g-module
  icx7400-xgc-4port-40g-module
  icx7400-xgf-4port-40g-module
ICX7750-26Q Router(config-spx-unit-20)# module 2 icx7400-xgf-4port-40g-module

Once you have configured a reserved PE unit, you can verify your configuration by entering the show running-config command. Configured modules are listed, along with SPX ports or LAGs, if any. SPX unit 20 configuration, a reserved PE configuration, is displayed after stack unit configuration. The following example shows no SPX ports. SPX ports or LAGs will be learned and added to the configuration when a matching PE joins the CB.

ICX7750-26Q Router(config-spx-unit-20)# show running-config

Current configuration:
!
ver 08.0.40b1T203
!
stack unit 1
  module 1 icx7750-20-qxg-port-management-module
  module 2 icx7750-qsfp-6port-qsfp-240g-module
  module 3 icx7750-6q-6port-qsfp-240g-module
  priority 128
  stack-trunk 1/2/4 to 1/2/5
  stack-port 1/2/1 1/2/4
stack unit 2
  module 1 icx7750-20-qxg-port-management-module
  module 2 icx7750-qsfp-6port-qsfp-240g-module
  module 3 icx7750-6q-6port-qsfp-240g-module
  stack-trunk 2/2/1 to 2/2/2
  stack-trunk 2/2/4 to 2/2/6
  stack-port 2/2/1 2/2/4
spx unit 20
  module 1 icx7450-48-port-management-module
  module 2 icx7400-xgf-4port-40g-module
stack enable
stack mac 748e.f8f9.6300
!