Cisco Technology, Inc.

Bhuvan Mital

Narasimhan Gomatam Mandeyam

Rajagopal Subramaniyan

Rahul Gupta

Kalyan Ghosh

Lalitha Krishnan

Ashwin Kumar Tc

Aravind Vinayak

Dean Houari

Yiqing Zhu

Continuance in quality level of an input timing signal may be provided. Clock source reference timing information may be receive by a first node from a second node as an input. The first node may be downstream from the second node. Then the first node may receive an event message associated with a future event associated with the second node. The first node may then refrain, for a period of time in response to receiving the event message, from switching the input for clock source reference timing information to a source other than the second node.

Continuance in quality level of an input timing signal

Techniques are provided for optimizing bandwidth in a network. Information describing a network bandwidth capacity of a port extender device is received at a switch. The port extender device is connected to the switch. The port extender device is configured to provide ports for the switch. The network bandwidth capacity of the port extender device is compared to a minimum network bandwidth guarantee threshold. If the switch determines that the network bandwidth capacity of the port extender device is below the minimum network guarantee threshold, the switch sends to the port extender device a message configured to cause the port extender to deactivate one or more links between the port extender device and one or more servers in communication with the port extender device.

Guaranteeing bandwidth for dual-homed hosts in fabric extender topologies

An example method for increasing multi-destination scale in a network environment is provided and includes receiving a packet at a pair of switches comprising a first switch and a second switch in a network environment, where the first switch is configured as an elected forwarder, and the second switch is configured as a standby forwarder. A fabric extender (FEX) is connected to the first switch and the second switch with a virtual PortChannel. The method further includes forwarding the packet to a host connected to the FEX. The elected forwarder is configured with substantially all multi-destination virtual interfaces (VIFs) on the FEX in a forwarding table. The standby forwarder forwards the packet to the elected forwarder. In specific embodiments, the elected forwarder programs the FEX with the VIFs.

Increasing multi-destination scale in a network environment

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Santa Clara, CA, United States of America

Bhuvan Mital