1Gig query

[Jonn cos]

Hi all.

I want to clear out this confusion once and for all :-(

1 Gig port on a switch working as full duplex mode means

  a) Send data at 1 Gb and receive at 1 Gb

  b) Send data at 500 Mb and receive at 500 Mb

Kindly guide

[Joseph W. Doherty]

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Posting

Answer is "a", it's gig both ways with gig duplex.

[Jonn cos]

Sir i asked this because i was reading a slide from ciscolive365.com

https://www.ciscolive365.com/connect/sessionDetail.ww?SESSION_ID=2874&backBtn=true

Sir at page 19 they are saying that if we have 2 switches connected by 10 links of 1G each, bandwidth will be 10 Gbps but flow bandwidth would be 1 Gbps and latecny would be 20us

If we connect 2 switches by 1 link of 10G then flow bandwidth would be 10Gbps with latency 2us.

Sir what is flow bandwidth ?

[Joseph W. Doherty]

Disclaimer

The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

Liability Disclaimer

In  no event shall Author be liable for any damages whatsoever (including,  without limitation, damages for loss of use, data or profit) arising out  of the use or inability to use the posting's information even if Author  has been advised of the possibility of such damage.

Posting

Flows are from source to destination, i.e. unidirectional, so on a gig duplex link, max bandwidth for the flow would be gig.  However, a return flow, going in the opposite direction, would also have gig bandwidth on a gig duplex link.  So on a gig duplex link, you can have two flows, going in opposite directions, each obtaining gig bandwidth.