Setting A Unit Id For A Switch - H3C S5600 SERIES Operation Manual

To do...
Specify the fabric port of a
switch
Establishing an IRF system requires a high consistency of the configuration of each device. Hence,
before you enable the fabric port, do not perform any configuration for the port, and do not
configure some functions that affect the IRF (such as TACACS and VLAN-VPN) for other ports or
globally. Otherwise, you cannot enable the fabric port. For detailed restrictions refer to the error
information output by devices.
After an IRF fabric is established successfully, do not enable the burst function on any device within
the IRF Fabric. For introduction to the burst function, refer to the QoS&QoS Profile part of the
manual.
To split a fabric, you can simply remove the cables used to form the fabric or disable the fabric
using the undo fabric-port enable command.
If you need to configure an IRF fabric as a DHCP server, configure the UDP Helper function in the
fabric at the same time to ensure that the client can successfully obtain an IP address. (Since this
configuration can be automatically synchronized to the entire fabric, you can perform it on only one
unit.) For the configuration of the UDP Helper function, refer to the UDP Helper part of this manual.

Setting a Unit ID for a Switch

On the switches that support automatic numbering, FTM will automatically number the switches to
constitute an IRF fabric by default, so that each switch has a unique unit ID in the fabric. You can use the
command in the following table to set unit IDs for switches. Make sure to set different unit IDs for
different switches in an IRF fabric. Otherwise, FTM will automatically number the switches with the
same unit ID.
Follow these steps to set a unit ID for a switch:
To do...
Enter system view
Set a unit ID for the
switch
If you do not enable the fabric port, you cannot change the unit ID of the local switch.
Use the command...
fabric-port interface-type
interface-number enable
Use the command...
system-view
change self-unit to
{ unit-id | auto-numbering }
1-6
Remarks
Required
Not specified by default
Remarks
—
Optional
By default, the unit ID of a switch that
belongs to no IRF fabric is 1. The unit ID
of a switch belonging to an IRF fabric is
assigned by FTM. Unit ID ranges from 1
to 8.