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Recaro1

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Registered: 25th Mar 02
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17th Mar 03 at 19:37

For my HNC assignment (due tomorrow) I need to research the layer in the network model that is responsible for the actions undertaken in respect to flow control and sequencing.

Anybody know which layer it is?

Tiger

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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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17th Mar 03 at 19:38

1. Physical - hardware
2. Data Link - ethernet
3. Network - IP
4. Transport - protocols(TCP/IP, UDP)
5. Session
6. Presentation
7. Application

Any help to you?

[Edited on 17-03-2003 by Tiger]

Recaro1

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17th Mar 03 at 19:41

yeah I know the 7 laterrs, but which one is responsible for the actons of flow control and sequencing. I thought it was transport but I just found a web site that states its the data link. which one!!!

Pete

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Registered: 20th Sep 99
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17th Mar 03 at 19:43

Ask Joff, he usually talks about stuff like that.....

Tiger

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17th Mar 03 at 19:44

Id say transport - data link has its own layer.

Recaro1

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17th Mar 03 at 19:46

ok, what techniques are used for flow control,

Super_si

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17th Mar 03 at 19:47

Best persons tim i cant be arsed to read my notes

John_C

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Registered: 5th Mar 03
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17th Mar 03 at 19:49

quote:
Originally posted by Tiger
1. Physical - Physical Topology
2. Data Link - Framing
3. Network - Routing
4. Transport - End to End connection
5. Session - Dialog control
6. Presentation - Data Encryption, compression and translation services
7. Application - File, print, message, database and application serivces

Any help to you?

[Edited on 17-03-2003 by Tiger]

dunno if thats any better

flow control - transport layer

Recaro1

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17th Mar 03 at 20:04

Heres the question:

"For ease of transmission a long message is broken down into a number of smaller packets to match the maximum allowabl frame length for a particular network. Each of these are then transmited seperately.

Investigate which layer of the netowrk model is responsible for actions undertaken in respect of flow control and sequencing. refer to both OSI and TCP/IP models."

Any help ?

Got a feeling its data link now.

Tiger

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Registered: 12th Jun 01
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17th Mar 03 at 20:06

network then, but thats a guess - sequencing of what exactly?

Super_si

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17th Mar 03 at 20:06

Transport lay isnt it??

Si

Recaro1

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17th Mar 03 at 20:11

not sure of the sequencing, tats all the info I have.

Joff

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17th Mar 03 at 20:22

The transport layer is the one typically associated with packet flow control although the Data Link Layer also has the ability to perform flow control if needed.

Recaro1

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17th Mar 03 at 20:35

Ok, I wrote both.

Super_si

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17th Mar 03 at 20:38

You've found my best source for my information.

i know which forum youve posted it on

and its tons better then here hehehehe

IntaCepta

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Registered: 25th Mar 02
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17th Mar 03 at 20:51

flow control is implemented in various layers of the OSI, for different reasons.
transport layer - to restrict the flow of data. (i think u know this one)
network layer - to generally prevent congestion.
if i'm not mistaking i think flow control is also implemented in the data link layer, but i forget for what reason

but @ the transport layer flow control becomes a more complex issue! i think this is where ur supposed to focus on in the question/homework.

sorry if i haven't helped as much, i'd have to dig up my books, its been a long time.

Mikorsa16v

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Registered: 2nd Sep 02
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17th Mar 03 at 20:52

i hav loads of notes on that, they look too diffucult to find ATM

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