System and method for automatically detecting and configuring server uplink network interface

Patent metadata

Field	Value
Publication number	US-10374896-B2
Application number	US-201715796020-A
Country	US
Kind code	B2
Filing date	Oct 27, 2017
Priority date	Feb 26, 2015
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

A system and a method for automatically detecting and configuring server uplink network interfaces in a network environment. An exemplary method includes receiving a discovery packet from a network element on a network interface of a server connected to the network element; evaluating the discovery packet to determine whether the network element possesses virtual bridging capabilities; and configuring the network interface of the server as an uplink interface for communicating with a network when the discovery packet indicates that the network element possesses virtual bridging capabilities.

First claim

What is claimed is:

1. A method, comprising:
receiving a link layer discovery protocol packet (LLDP) from a network element on a network interface of a server connected to the network element;
indicating, by the server in response to the received LLDP including an Ethernet Virtual Bridging (EVB) Type-Length-Value (TLV), that the network element is an EVB Bridge;
automatically configuring, in response to the indicating the network element is an EVB Bridge, the network interface as an uplink interface to run virtual station interface (VSI) Discovery and Configuration Protocol (VDP) for communicating with a network.

2. The method of claim 1 , further comprising forwarding network traffic from a virtual machine running on the server via the uplink interface to the network.

3. The method of claim 1 , wherein the network element is a switch, the method further comprising receiving the LLDP upon connecting the network interface of the server to the switch.

4. The method of claim 3 , wherein the uplink interface is associated with a physical port of the server attached to the switch.

5. The method of claim 3 , wherein the uplink interface is associated with a logical port of the server attached to the switch.

6. The method of claim 1 , further comprising, in response to detecting that the uplink interface for communicating with the network is broken, automatically detecting and reconfiguring the uplink interface for the server connected with the network element.

7. The method of claim 6 , further comprising automatically reconfiguring the uplink interface in response to the server reconnecting to the network element.

8. A non-transitory computer readable media including instructions to cause a computer to execute operations comprising:
receiving a link layer discovery protocol packet (LLDP) from a network element on a network interface of a server connected to the network element;
indicating, by the server in response to the received LLDP including an Ethernet Virtual Bridging (EVB) Type-Length-Value (TLV), that the network element is an EVB Bridge;
automatically configuring, in response to the indicating the network element is an EVB Bridge, the network interface as an uplink interface to run virtual station interface (VSI) Discovery and Configuration Protocol (VDP) for communicating with a network.

9. The media of claim 8 , the operations further comprising forwarding network traffic from a virtual machine running on the server via the uplink interface to the network.

10. The media of claim 8 , wherein the network element is a switch, the operations further comprising receiving the LLDP upon connecting the network interface of the server to the switch.

11. The media of claim 10 , wherein the uplink interface is associated with a physical port of the server attached to the switch.

12. The media of claim 10 , wherein the uplink interface is associated with a logical port of the server attached to the switch.

13. The media of claim 8 , the operations further comprising, in response to detecting that the uplink interface for communicating with the network is broken, automatically detecting and reconfiguring the uplink interface for the server connected with the network element.

14. The media of claim 13 , the operations further comprising automatically reconfiguring the uplink interface in response to the server reconnecting to the network element.

15. A system, comprising:
a memory;
a processor configured to cooperate with the memory to perform operations comprising:
receiving a link layer discovery protocol packet (LLDP) from a network element on a network interface of a server connected to the network element;
indicating, by the server in response to the received LLDP including an Ethernet Virtual Bridging (EVB) Type-Length-Value (TLV), that the network element is an EVB Bridge;
automatically configuring, in response to the indicating the network element is an EVB Bridge, the network interface as an uplink interface to run virtual station interface (VSI) Discovery and Configuration Protocol (VDP) for communicating with a network.

16. The system of claim 15 , the operations further comprising forwarding network traffic from a virtual machine running on the server via the uplink interface to the network.

17. The system of claim 15 , wherein the network element is a switch, the operations further comprising receiving the LLDP upon connecting the network interface of the server to the switch.

18. The system of claim 17 , wherein the uplink interface is associated with a physical port of the server attached to the switch.

19. The system of claim 17 , wherein the uplink interface is associated with a logical port of the server attached to the switch.

20. The system of claim 15 , the operations further comprising, in response to detecting that the uplink interface for communicating with the network is broken, automatically detecting and reconfiguring the uplink interface for the server connected with the network element.

Assignees

• Cisco Tech Inc

Inventors

• Xu Milton Y
• Krishnan Padmanabhan

Classifications

• H04L41/0809

  Plug-and-play configuration · CPC title

• Y02D30/30

  Cross-Sectional Technologies · mapped topic

• H04L41/085

  Retrieval of network configuration; Tracking network configuration history · CPC title

• Y02D30/32

  Cross-Sectional Technologies · mapped topic

• H04L41/0886 Primary

  Fully automatic configuration · CPC title