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Hasan Mansur

A Dell EMC Networking focused personal Blog – Data Center & Campus

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Tag: PowerConnect

Flow Control – Pause Frames

December 15, 2012 Hasan Mansur

. When an Ethernet device gets over loaded, flow control allows it to send PAUSE requests to the  devices sending it data to allow the over loaded

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Layer 2 Discards Troubleshooting – RX TX Discards

December 15, 2012 Hasan Mansur

. The following list of questions/vectors can assist in troubleshooting Layer 2 discard issues. They have been of help to me in the past on

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Switch Port auto shuts/ port shuts itself down – Troubleshooting

December 15, 2012 Hasan Mansur

. Following is a list of vectors that may assist in troubleshooting issues where the port behavior look like it is shutting itself down. Cable/

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PowerConnect 8024 – Sample iSCSI Configuration – Stacked

October 22, 2012 Hasan Mansur

. First, I would highly recommend you have a view of my earlier post that summarizes the various (platform independent) optimizations you can implement on

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Powerconnect SFP/Fiber connectivity – Options, Requirements and Troubleshooting

October 15, 2012 Hasan Mansur

Basic requirements for fiber connections on PowerConnect switches: MMF optical cables, LC connectors, and SFP transceivers. 1)     Optical Cables :   Single Mode Vs Multi Mode Single Mode

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Latency, Packet loss Troubleshooting (PowerConnect, Others)

October 15, 2012 Hasan Mansur

. First, know your network. know the topology. if you have a network in place where by design, the majority of the variables are deterministic

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Powerconnect Switches: Oversized Packet Counter, bcmRX task

October 15, 2012 Hasan Mansur

. In a blade chassis implementation some time ago, some concerns were raised on the value of packet counters, and an inquiry on the bcmRX

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Powerconnect – Stacked Vs. Standalone Configuration

October 14, 2012 Hasan Mansur

. A fairly common design choice to be faced with during deployments, is  whether to use Stacking, Standalone, or vPC/VLT (a dual control plane implementation

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PowerConnect Switchport modes

October 14, 2012 Hasan Mansur

. This post gives a comparison between the different port modes available on the Dell PowerConnect switches. the trunk and access modes are familiar to

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Switch fabric setup for iSCSI

October 14, 2012 Hasan Mansur

. This post summarizes various elements which, in my experience, serve to optimize the iSCSI switch fabric. While it talks about Powerconnect switches, the elements

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