Patent application number | Description | Published |
20100074137 | ZONE BASED QUALITY OF SERVICE IN A FIBRE CHANNEL FABRIC - Methods and apparatus are provided for improving the configuration, management, and distribution of quality of service information in a fibre channel fabric using zoning mechanisms. Configuration of Quality of Service (QoS) information is made easy by using zones as a classifier for flows. QoS information is included in zone objects, thereby using the existing zone distribution mechanism to distribute QoS information. Devices not part of any zones are placed automatically in the default zone with a default QoS priority level. QoS information for a particular packet is available as soon as the zoning information is obtained. | 03-25-2010 |
20130272302 | UPDATING ZONE INFORMATION IN A DISTRIBUTED SWITCH OF DATA FORWARDERS - Provided are a computer program product, system, and method for updating zone information in a distributed switch of data forwarders. For each data forwarder, a sequence number is maintained for zone distribution messages sent to the data forwarder. A change to the ports in the network is detected comprising at least one of an allocation or deallocation of at least one port in the network. The sequence number for each data forwarder is incremented in response to detecting the change. For each data forwarder, a zone distribution message is generated indicating the at least one port allocated and/or deallocated, port information indicating each port in the network that may communicate with each other port, and the sequence number for the data forwarder. The generated zone distribution message is transmitted for each data forwarder to the data forwarder for which the zone distribution message was added. | 10-17-2013 |
20130272313 | UPDATING ZONE INFORMATION IN A DISTRIBUTED SWITCH OF DATA FORWARDERS - Provided are a computer program product, system, and method for updating zone information in a distributed switch of data forwarders. For each data forwarder, a sequence number is maintained for zone distribution messages sent to the data forwarder. A change to the ports in the network is detected comprising at least one of an allocation or deallocation of at least one port in the network. The sequence number for each data forwarder is incremented in response to detecting the change. For each data forwarder, a zone distribution message is generated indicating the at least one port allocated and/or deallocated, port information indicating each port in the network that may communicate with each other port, and the sequence number for the data forwarder. The generated zone distribution message is transmitted for each data forwarder to the data forwarder for which the zone distribution message was added. | 10-17-2013 |
20150043576 | SOFTWARE DEFINED NETWORK (SDN) SWITCH CLUSTERS HAVING LAYER-3 DISTRIBUTED ROUTER FUNCTIONALITY - 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. | 02-12-2015 |
20150098475 | HOST TABLE MANAGEMENT IN SOFTWARE DEFINED NETWORK (SDN) SWITCH CLUSTERS HAVING LAYER-3 DISTRIBUTED ROUTER FUNCTIONALITY - According to one embodiment, a system includes a switch controller in communication with a plurality of switches in a switch cluster via a communication protocol, at least one switch in the switch cluster being configured to connect to a host, wherein the switch controller is configured to: maintain a Layer-3 (L3) host table configured to store entries including address information for hosts connected directly to the switch cluster, apply a policy to all existing entries in the L3 host table, and remove one or more existing entries according to the policy in order to reduce a number of entries in the L3 host table. In other embodiments, systems, computer program products, and methods for managing a L3 host table in software defined network (SDN)-based switch clusters having L3 distributed router functionality are presented. | 04-09-2015 |
20150110122 | MAINTAINING A FABRIC NAME ACROSS A DISTRIBUTED SWITCH - Techniques are provided for distributing a fabric name to switching elements of a distributed switch configured to forward Fibre Channel over Ethernet (FCoE) frames. A distributed switch membership distributed (DMFD) message is transmitted that includes names of all switching elements in the distributed switch, and further includes a fabric descriptor that contains the fabric name. | 04-23-2015 |
20150110487 | MAINTAINING A FABRIC NAME ACROSS A DISTRIBUTED SWITCH - Techniques are provided for distributing a fabric name to switching elements of a distributed switch configured to forward Fibre Channel over Ethernet (FCoE) frames. A distributed switch membership distributed (DMFD) message is transmitted that includes names of all switching elements in the distributed switch, and further includes a fabric descriptor that contains the fabric name. | 04-23-2015 |
20150134766 | DATA TRAFFIC SWITCHING AMONG COMPUTING DEVICES IN STORAGE AREA NETWORK (SAN) ENVIRONMENTS - Data traffic switching among computing device in a SAN environment is disclosed herein. According to an aspect, a method may be implemented at an NPV device that is associated with multiple computing devices positioned behind the NPV device in a SAN. The method may also include receiving zoning information associated with the computing devices. The method may also include determining, based on the zoning information a map for switching data traffic among the computing devices. Further, the method may include switching the data traffic among the computing devices based on the determined map. | 05-14-2015 |