Configuring Slots on Modular Switches

This section describes configuring slots on modular switches, which are the BlackDiamond X8 switches, BlackDiamond 8800 series switches, and SummitStack. In a SummitStack, a slot number is assigned to a node through configuration and stored in the node's NVRAM. It takes effect only when the node restarts. In the following descriptions, the phrase inserted into a slot in a SummitStack means that the node has become active, and because of its configured slot value it appears to be present in a slot when the show slot command is run. The relationship of a node and a slot does not change if the SummitStack is rewired. The term module refers to a Summit family switch that may be present in the stack as an active node.

If a slot has not been configured for a particular type of module, then any type of module is accepted in that slot, and a default port and VLAN configuration is automatically generated.

After any port on the module has been configured (for example, a VLAN association, a VLAN tag configuration, or port parameters), all the port information and the module type for that slot must be saved to non-volatile storage. Otherwise, if the modular switch or SummitStack is rebooted or the module is removed from the slot, the port, VLAN, and module configuration information is not saved.

Note

For information on saving the configuration, see Software Upgrade and Boot Options.

You can also preconfigure the slot before inserting the module. This allows you to begin configuring the module and ports before installing the module in the chassis or activating the related node in the SummitStack.

If a slot is configured for one type of module, and a different type of module is inserted, the inserted module is put into a mismatch state and is not brought online.

All configuration information related to the slot and the ports on the module is erased. If a module is present when you issue this command, the module is reset to default settings.

You can configure the number of times that a slot can be restarted on a failure before it is shut down.

To configure the modular switch or a SummitStack with the type of input/output (I/O) module that is installed in each slot, use the following command:
configure slot slot module module_type
Use the new module type in a slot, the slot configuration must be cleared or configured for the new module type. To clear the slot of a previously assigned module type, use the following command:
clear slot slot
To display information about a particular slot, use the following command:
show slot {slot} {detail}
Information displayed includes:
- Module type, part number and serial number
- Current state (power down, operational, diagnostic, mismatch)
- Port information
If no slot is specified, information for all slots is displayed.

All slots on the modular switches are enabled by default.
To disable a slot, use the following command:
disable slot
To re-enable slot, use the following command:
enable slot
On the BlackDiamond X8 switch, the command to disable a fabric slot is:
disable slot FM-1 | FM-2 | FM-3 | FM-4 {offline}

When a fabric slot is disabled, it is powered off and the bandwidth it provides is unavailable. Disabling an active fabric slot reroutes the switch fabric traffic before powering off the inserted FM blade. Thus, if there are four active fabric modules when one is disabled, there should be no traffic loss.
On the BlackDiamond X8 switch, the command to enable a fabric slot is:
enable slot FM-1 | FM-2 | FM-3 | FM-4
To set the restart-limit, use the following command:
configure slot slot_number restart-limit num_restarts

Published March 2020prev | next

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