Method for determining management domain, network device, and virtual cluster

A method for determining a management domain, wherein the method is applicable to a virtual cluster, the virtual cluster comprising a first network device, a second network device, and at least two management domains, wherein the first network device manages a first management domain, the method comprising:

• constructing, by the first network device, a first packet comprising a domain identifier (ID) of the first management domain and a first Internet Protocol (IP) address set corresponding to the domain ID of the first management domain, and the first IP address set comprises an IP address of a network device in the first management domain;
• sending, by the first network device, the first packet to the second network device, so that after receiving the first packet, the second network device determines whether the first IP address set comprises an IP address of the second network device, and when the first IP address set comprises the IP address of the second network device, determines that the second network device belongs to the first management domain, and stores the domain ID of the first management domain;
• receiving, by the first network device, a second packet sent by the second network device, wherein the second packet comprises topology information of the second network device, and the second packet is sent by the second network device when it is determined that the second network device belongs to a management domain managed by the first network device;
• storing, by the first network device, the topology information of the second network device;
• and
• sending the topology information of the second network device to other management devices in the virtual cluster.

A second network device, wherein the second network device is a network device in a virtual cluster, the virtual cluster comprising a first network device, the second network device, and at least two management domains, wherein the first network device manages a first management domain, the second network device comprising:

• a receiver, configured to receive a first packet sent by the first network device, wherein the first packet comprises a domain identifier (ID) of the first management domain and a first Internet Protocol (IP) address set corresponding to the domain ID of the first management domain, and the first IP address set comprises an IP address of a network device in the first management domain;
• a processor, configured to determine whether the first IP address set that is comprised in the first packet received by the receiver comprises an IP address of the second network device, when determining that the first IP address set comprises the IP address of the second network device, to determine that the second network device belongs to the first management domain;
• a memory, configured to store the domain ID of the first management domain when the processor determines that the second network device belongs to the first management domain;
• and
• a transmitter configured to:
• after the processor determines that the second network device belongs to the first management domain, send a second packet to the first network device, wherein the second packet comprises topology information of the second network device, wherein after receiving the topology information of the second network device, the first network device stores the topology information of the second network device, and sends the topology information of the second network device to other management devices in the virtual cluster.

A first network device, wherein the first network device is a network device in a virtual cluster, the virtual cluster comprising the first network device, a second network device, and at least two management domains, wherein the first network device manages a first management domain, the first network device comprising:

• a processor, configured to construct a first packet, wherein the first packet comprises a domain identifier (ID) of the first management domain and a first Internet Protocol (IP) address set corresponding to the domain ID of the first management domain, and the first IP address set comprises an IP address of a network device in the first management domain;
• a transmitter, configured to send the first packet constructed by the processor to the second network device, so that after receiving the first packet, and when determining that the first IP address set comprises an IP address of the second network device, the second network device determines that the second network device belongs to the first management domain, and stores the domain ID of the first management domain;
• a receiver, configured to receive a second packet sent by the second network device, wherein the second packet comprises topology information of the second network device, and the second packet is sent by the second network device when determining that the second network device belongs to a management domain managed by the first network device
• a memory, configured to store the topology information of the second network device;
• and
• the transmitter further configured to send the topology information of the second network device to other management devices in the virtual cluster.

A system, comprising:

• a first network device and a second network device, wherein:
• the first network device manages a first management domain;
• the first network device is configured to construct a first packet, and send the first packet to the second network device, wherein the first packet comprises a domain identifier (ID) of the first management domain and a first Internet Protocol (IP) address set corresponding to the domain ID of the first management domain, and the first IP address set comprises an IP address of a network device in the first management domain;
• the second network device is configured to receive the first packet, and when it is determined that the first IP address set comprises an IP address of the second network device, determine that the second network device belongs to the first management domain, and store the domain ID of the first management domain, wherein the second network device is further configured to send, after the second network device determines that the second network device belongs to the first management domain, a second packet to the first network device, wherein the second packet comprises topology information of the second network device;
• the first network device is further configured to, after receiving the topology information of the second network device, store the topology information of the second network device, and send the topology information of the second network device to other management devices in the virtual cluster.

A non-transitory computer readable medium including computer executable instructions that, when executed by a system, cause the system to:

• receive a first packet sent by a first network device, wherein the first packet comprises a domain identifier (ID) of a first management domain and a first Internet Protocol (IP) address set corresponding to the domain ID of the first management domain, and the first IP address set comprises an IP address of a network device in the first management domain;
• determine whether the first IP address set that is comprised in the first packet received comprises an IP address of a second network device;
• when it is determined that the first IP address set comprises the IP address of the second network device, determine that the second network device belongs to the first management domain;
• store the domain ID of the first management domain, when the second network device is determined to belong to the first management domain;
• and
• send a second packet to the first network device, wherein the second packet comprises topology information of the second network device, wherein after receiving the topology information of the second network device, the first network device stores the topology information of the second network device, and sends the topology information of the second network device to other management devices in the virtual cluster.

A non-transitory computer readable medium including computer executable instructions that, when executed by a system, cause the system to:

• construct a first packet, wherein the first packet comprises a domain identifier (ID) of a first management domain and a first Internet Protocol (IP) address set corresponding to the domain ID of the first management domain, and the first IP address set comprises an IP address of a first network device in the first management domain;
• send the first packet constructed to a second network device, so that after receiving the first packet, and when determining that the first IP address set comprises an IP address of the second network device, the second network device determines that the second network device belongs to the first management domain, and stores the domain ID of the first management domain;
• receive a second packet sent by the second network device, wherein the second packet comprises topology information of the second network device, and the second packet is sent by the second network device when it is determined that the second network device belongs to a management domain managed by the first network device;
• store, by the first network device, the topology information of the second network device, and
• send the topology information of the second network device to other management devices in the virtual cluster.