公开(公告)号：EP3031179A4

公开(公告)日：2016-08-03

申请号：EP14835332

申请日：2014-06-10

Applicant: IBM

Inventor： DIXON COLIN KIMM ,  FELTER WESLEY MICHAEL ,  JAYANARAYANA SRIHARSHA ,  KAMATH DAYAVANTI GOPAL ,  KUMBHARE ABHIJIT PRABHAKAR ,  SHAIKH ANEES A

IPC: H04L12/717 ,  H04L12/715 ,  H04L29/12

CPC classification number: H04L45/34 ,  H04L12/184 ,  H04L45/586 ,  H04L45/64 ,  H04L45/74 ,  H04L61/103 ,  H04L61/6022

Abstract: According to one embodiment, Layer-3 (L3) distributed router functionality is provided to a switch cluster by receiving an address resolution protocol (ARP) request packet from a first host at an entry switch in a switch cluster, a switch controller being in communication with the entry switch, and the ARP request packet including a virtual router IP address of the switch controller as a target, forwarding the ARP request packet to the switch controller after adding a header that adheres to a communication protocol used by the switch controller, receiving an ARP response packet from the switch controller indicating: a source IP address corresponding to a virtual router of the switch controller and a SMAC corresponding to the switch controller, forwarding the ARP response packet to the first host after stripping the communication protocol header, and setting the virtual router as a default gateway for traffic received from the first host.

公开(公告)号：GB2524218A

公开(公告)日：2015-09-16

申请号：GB201513185

申请日：2013-12-11

Applicant: IBM

Inventor： JAIN VINIT ,  KAMATH DAYAVANTI GOPAL ,  KUMBHARE ABHIJIT PRABHAKAR ,  RECIO RENATO

IPC: H04L45/42 ,  H04L45/243 ,  H04L45/247 ,  H04L47/41

Abstract: In one embodiment, a method for providing link aggregation (LAG) to heterogeneous switches includes receiving, at a switch controller, LAG requests forwarded by switches and determining that multiple LAG requests corresponding to a server have been received, grouping the multiple LAG requests into LAG groups according to a switch from which they were received and correlating all the LAG groups with the server, instructing each of the switches to setup a LAG group with the server according to the LAG groups determined by the switch controller, and creating alternate flows that correspond to flows through each of the switches to the server through direction from the switch controller. The switches may rely upon OpenFlow to communicate with the switch controller, in some approaches.In addition, other methods for providing LAG to heterogeneous switches are also described, along with systems and computer program products which provide LAG to heterogeneous switches.

公开(公告)号：GB2524218B

公开(公告)日：2015-11-04

申请号：GB201513185

申请日：2013-12-11

Applicant: IBM

Inventor： JAIN VINIT ,  KAMATH DAYAVANTI GOPAL ,  KUMBHARE ABHIJIT PRABHAKAR ,  RECIO RENATO

IPC: H04L45/42 ,  H04L45/243 ,  H04L45/247 ,  H04L47/41

Abstract: In one embodiment, a method for providing link aggregation (LAG) to heterogeneous switches includes receiving, at a switch controller, LAG requests forwarded by switches and determining that multiple LAG requests corresponding to a server have been received, grouping the multiple LAG requests into LAG groups according to a switch from which they were received and correlating all the LAG groups with the server, instructing each of the switches to setup a LAG group with the server according to the LAG groups determined by the switch controller, and creating alternate flows that correspond to flows through each of the switches to the server through direction from the switch controller. The switches may rely upon OpenFlow to communicate with the switch controller, in some approaches. In addition, other methods for providing LAG to heterogeneous switches are also described, along with systems and computer program products which provide LAG to heterogeneous switches.