Configures the circuit ID sub-option that identifies the port for an incoming DHCP (Dynamic Host Configuration Protocol) request.
| port_info | Specifies a text string that becomes the circuit ID sub-option for the specified port. Specify a text string composed of 1 to 32 characters. |
| port | Specifies the port to which the circuit ID sub-option is assigned. |
The default port_info is encoded as ((slot_number * 1000) + port_number/portIfindex). For example, if the DHCP request is received on port 3:12, the default circuit ID port_info value is 3012. On standalone switches, the slot number is one, so the default circuit ID port_info value is (1000 + port_number/portIfindex). For example, the default port_info for port 3 on a standalone switch is 1003.
The full circuit ID string uses the format vlan_info-port_info . To configure the vlan_info portion of the circuit ID string, use the following command:
configure bootprelay dhcp-agent information circuit-id vlan-information vlan_info {vlan} [vlan_name|all]To display the port_info information, use the following command:
show bootprelay dhcp-agent information circuit-id port-information ports allThe following command configures the circuit ID port_info value slot1port3 for port 1:3:
configure bootprelay dhcp-agent information circuit-id port-information slot1port3 port 1:3
This command was first available in ExtremeXOS 12.4.
This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X590, X620, X690, X870 series switches.
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