US 2017/0302501 A1 · Method, Apparatus, and System for Controlling Sending of MAC Address Forwarding Table

Abstract

A method, an apparatus, and a system for controlling sending of a MAC address forwarding table are provided. In the solution, when it is determined that a destination IP address is different from any IP address of a gateway to which a source virtual machine is attached, generation, according to an ARP request packet, a first MAC address forwarding table that is to be sent to the gateway is forbidden; and when it is determined that IP addresses of the gateway to which the source virtual machine is attached include an IP address that is the same as the destination IP address, a first MAC address forwarding table that is to be sent to the gateway is generated according to the ARP request packet, and the first MAC address forwarding table is sent to the gateway.

Claims13

Dependent claims

A method, comprising:

receiving, by a software-defined networking (SDN) controller, an address resolution protocol (ARP) request packet sent by a source virtual machine using a first top-of-rack (TOR) switch to which the source virtual machine is attached, wherein the ARP request packet carries a destination Internet Protocol (IP) address;
and
when the SDN controller determines that the destination IP address is different from any IP address of a gateway to which the source virtual machine is attached, forbidding generation, according to the ARP request packet, of a first media access control (MAC) address forwarding table that is to be sent to the gateway to which the source virtual machine is attached.

A software-defined networking (SDN) controller, comprising:

a receiving unit, configured to receive an address resolution protocol (ARP) request packet sent by a source virtual machine using a first top-of-rack (TOR) switch to which the source virtual machine is attached, wherein the ARP request packet carries a destination Internet Protocol (IP) address;
and
a determining unit, configured to:
when determining that the destination IP address is different from any IP address of a gateway to which the source virtual machine is attached, forbid generation, according to the ARP request packet, a first media access control (MAC) address forwarding table that is to be sent to the gateway to which the source virtual machine is attached.

1 more element

A software-defined networking (SDN) controller, comprising:

a transceiver;
and
a processor;
wherein the transceiver is configured to receive an address resolution protocol (ARP) request packet sent by a source virtual machine using a first top-of-rack (TOR) switch to which the source virtual machine is attached, wherein the ARP request packet carries a destination Internet Protocol (IP) address;
and
wherein the processor is configured to, when determining that the destination IP address is different from any IP address of a gateway to which the source virtual machine is attached, forbid generation, according to the ARP request packet, of a first MAC address forwarding table that is to be sent to the gateway to which the source virtual machine is attached.

3 more elements

Dependencies are inferred from the claim text.

Method, Apparatus, and System for Controlling Sending of MAC Address Forwarding Table

Life of this patent

Method, Apparatus, and System for Controlling Sending of MAC Address Forwarding Table

Life of this patent

Abstract

Claims13