Systems and methods for zero touch provisioning (ZTP) over trunk/LACP ports

A method comprising:

• transmitting, by a network device, a Dynamic Host Configuration Protocol (DHCP) discover message on an uplink port;
• receiving, by the network device, a response message based on the DHCP discover message;
• determining that a pre-defined extension is included in the response message, wherein the pre-defined extension indicates a port type and a virtual local area network (VLAN) configuration, and the pre-defined extension comprises a DHCP defined option code to return mapped vendor specific information, and wherein the port type indicated by the pre-defined extension comprises one of:
• a first type indicating a trunk port only;
• a second type indicating a Link Aggregation Control Protocol (LACP) port;
• or
• a third type indicating a port trunk and an LACP port;
• in response to determining that the pre-defined extension is included in the response message, automatically configuring one or more ports of the network device and a VLAN associated with the network device based on the port type and the VLAN configuration indicated by the pre-defined extension;
• and
• restarting a zero-touch provisioning (ZTP) for the network device in accordance with the configuring of the one or more ports of the network device and the VLAN associated with the network device.

A Dynamic Host Configuration Protocol (DHCP) server comprising:

• a hardware processor;
• and
• a non-transitory computer-readable storage medium storing instructions that, when executed by the hardware processor, cause the DHCP server to:
• receive, at the DHCP server, a DHCP discover message from an uplink port of a gateway, wherein the DHCP discover message is transmitted by the gateway and comprises a vendor class identifier (VCI);
• in response to receiving the DHCP discover message, determine whether the DHCP discover message includes a first DHCP defined option code identifying a configured device;
• in response to determining that the DHCP discover message includes the DHCP defined option code, determine whether the VCI in the DHCP discover message matches a VCI for the configured device;
• and
• in response to determining a match between the VCI in the DHCP discover message and the VCI for the configured device, automatically transmitting configuration information for the configured device, the configuration information comprising a pre-defined extension and a virtual local area network (VLAN) configuration, wherein the pre-defined extension comprises a second DHCP defined option code to return mapped vendor specific information corresponding to the VCI for the configured device and identifies a port type such that the configuration information is automatically processed and the uplink port is programmed as a trunk port, or a Link Aggregation Control Protocol (LACP) port, or both the trunk port and the LACP port based on the port type identified by the pre-defined extension, and the uplink port is configured in accordance with the VLAN configuration, and wherein the port type identified by the pre-defined extension comprises a first type indicating a trunk port only, or a second type indicating an LACP port, or a third type indicating a trunk port and an LACP port.

A network device comprising:

• a hardware processor;
• and
• a non-transitory computer-readable storage medium storing instructions that, when executed by the hardware processor, cause the network device to:
• transmit, from the network device, a Dynamic Host Configuration Protocol (DHCP) discover message on an uplink port;
• receive, at the network device, a response message based on the DHCP discover message;
• determine whether a pre-defined extension is included in the response message, wherein the pre-defined extension indicates a port type and a virtual local area network (VLAN) configuration, and the pre-defined extension comprises a DHCP defined option code to return mapped vendor specific information, and wherein the port type indicated by the pre-defined extension comprises at least one of:
• a first type indicating a trunk port only;
• a second type indicating a Link Aggregation Control Protocol (LACP) port;
• or
• a third type indicating a trunk and an LACP port;
• in response to determining that the pre-defined extension is included in the response message, automatically configure one or more ports of the network device and a VLAN associated with the network device based on the port type and the VLAN configuration indicated by the pre-defined extension;
• and
• restart a zero-touch provisioning (ZTP) for the network device in accordance with the configuring of the one or more ports of the network device and the VLAN associated with the network device.