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Flow control and Back pressure setting on Cisco SLM248G Switch

ipodtrip01
Level 1
Level 1

On my Cisco SLM248G Switch the Back pressure and Flow control are currently disable.

For the Flow control is it best to set it to enable or just Auto negotations and for the Back pressure is it ok the Enable it.

This Cisco Switch has 3 servers and 15 laptop users connected to the ports.

Will there be a draw back to enable these settings.

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Joseph W. Doherty
Hall of Fame
Hall of Fame

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Will there be a draw back to enable these settings.

There can be a draw back as it can create a head-of-line blocking situation at the port and/or additional latency.

The advantage can be, less dropped packets.

With lots of traffic supporting real-time and/or interactive usage, it's often better to leave these settings off.

The foregoing assumes "stock" Ethernet.

For various network vendors viewpoints, see: http://www.networkworld.com/netresources/0913flow2.html