Assigning an ID to a PE Unit

A PE unit does not carry its ID. Its ID is always assigned when it joins a CB.

Note: The zero-touch utility automatically assigns IDs to new PE units. Refer to Zero-touch configuration for more information.

Note: The SPX interactive-setup utility suggests PE IDs for new units and asks for user confirmation. The user can change the IDs if necessary. Refer to SPX interactive-setup for more information.

A PE ID can be assigned in different ways:

You can use SPX interactive-setup option 1 to change the IDs of existing PEs.

You can use SPX interactive-setup option 2 or 3 to assign an ID to a PE candidate.

You can create a PE ID on the CB as part of an SPX unit configuration. The PE ID is assigned to a PE that joins with a matching configuration on the specified port.
The following example creates two PE IDs, 20 and 21, for CB SPX port 1/1/10. The first PE unit that joins on SPX port 1/1/10 will be assigned a unit ID of 20. The second PE unit to join on the same port will be assigned a unit ID of 22.
```
ICX7650-48F Router# configure terminal
ICX7650-48F Router(config)# spx cb-config 
ICX7650-48F Router(config-spx-cb)# spx-port 1/1/10
ICX7650-48F Router(config-spx-cb)# pe-id 1/1/10 20 22  
```
The following example creates the same PE IDs for the same port, based on the name associated with the CB's SPX port.
```
ICX7650-48F Router# configure terminal
ICX7650-48F Router(config)# spx cb-config 
ICX7650-48F Router(config-spx-cb)# spx-port 1/1/10 pe-group finance
ICX7650-48F Router(config-spx-cb)# pe-id finance 20 22
```
The following example creates the same PE IDs for the SPX connection, based on another port in the same SPX LAG.
```
ICX7650-48F Router# configure terminal
ICX7650-48F Router(config)# spx cb-config 
ICX7650-48F Router(config-spx-cb)# spx-lag 1/1/10 1/1/11
ICX7650-48F Router(config-spx-cb)# pe-id 1/1/11 20 22
```

You can configure a suggested ID on the PE unit before it joins the CB. The suggested ID may be overridden by the CB, however. For example, if the PE unit joins the CB and matches pe-idconfiguration, the PE unit will be assigned the PE ID from the pe-id configuration instead of the suggested ID. The CB also does not assign the suggested ID if the ID is already in use on an active PE unit or if the ID exists in a pe-id configuration.
The following example creates a suggested ID of 20 on an ICX 7450 in Provisional-PE mode.
```
ICX7450-48F Router# configure terminal
ICX7450-48F Router(config)# spx pe-enable
[Provisional-PE]ICX7450-48F Router(config)# spx suggested-id 20
```

If no suggested ID is configured for it, the PE unit may be assigned its old ID if the previous ID has not been used in any pe-id configuration.

The CB assigns the PE an unused ID; that is, one that is not active or present in another pe-id configuration.

Campus Fabric Management

Assigning an ID to a PE Unit

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