There's no frame relay overhead, but PPP and even the default Cisco HDLC
encapsulation are still protocols, and have associated overhead. Framing
still has to take place, even if it's not the "frame relay" encapsulation.
- Don
-----Original Message-----
From: John Zaggat [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 14, 2000 11:00 AM
To: Feliz, Edgar; CiscoGroupstudy
Subject: RE: Diff between point to point T1 and T1 with framerelay
Thank you for your help, I have one more question :
The bandwidth for a p-to-p connnection, should that be
1544 Mbs as compared to 1536 Mbs since there is no
frame-relay overhead ?
--- "Feliz, Edgar" <[EMAIL PROTECTED]> wrote:
> John,
>
> If you order a T1 from A provider that is 1536 Mbs
> you get that bandwidth
> all to yourself you DO NOT have to SHARE it with
> anyone. It is as if you,
> and the other side of the connection had a long
> cable between the two sites,
> and only those two site could used that cable. All
> of the data you transmit
> under normal circumstance (no errors) will get
> through. This comes at a
> price.
>
> Frame-Relay on the other hand is shared bandwidth.
> Yes! the provider will
> under normal conditions guarantee the bandwidth that
> you request (CIR =
> Committed Information Rate), say 256k, 512k etc. You
> will even be able to
> burst for a certain period of time if there is
> bandwidth available to your
> port speed. But if the network becomes congested
> some of your packets will
> not get to their destination because they could have
> met a condition (DE +
> Discard eligible) set in the core network, or by the
> subscriber, that
> required them to be dropped under certain
> circumstances, like high network
> congestion,(This varies as some carriers will not
> drop packets, but there
> may be longer delays). When I say that it is shared
> bandwidth I say this
> because in fact you are sharing the bandwidth in the
> Core Network of your
> provider with hundreds of other subscribers to the
> service.
>
> Hope this helps,
>
> EF
>
> -----Original Message-----
> From: John Zaggat [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 13, 2000 1:15 PM
> To: CiscoGroupstudy
> Subject: Diff between point to point T1 and T1 with
> framerelay
>
>
> Can some clearly explain the difference, I have
> checked the Archives and not found a good
> explanation.
> Also if you have some sample configs, that would be
> a
> great help to me.
> Thank you.
>
> =====
> JZ
> [EMAIL PROTECTED]
>
>
>
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=====
JZ
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