From: Packet Man (ccie2b@hotmail.com)
Date: Sun Jan 25 2004 - 20:39:15 GMT-3
Hi all,
I would make a couple other observations:
For purposes of the exam, I would always use FRTS on F/R interfaces unless
explicitly told not to and always use GTS on non-F/R interfaces.
If voice traffic will be going over any F/R, then you should fragment
traffic which can't be done using GTS.
If FRTS must be applied to only 1 VC on a multipoint (phy or sub-int), only
FRTS can do that, GTS doesn't provide a means to apply TS to an individual
VC - it must be applied at the phy or sub-int level.
HTH
>From: Nauman Khan <mustafa@247emails.com>
>Reply-To: Nauman Khan <mustafa@247emails.com>
>To: "Connelly Sylvester" <connelly.Sylvester@btinternet.com>,
>ccielab@groupstudy.com
>Subject: Re: Generic Traffic Shaping (GTS) or Frame Relay traffic
>shaping
>Date: Sun, 25 Jan 2004 14:40:39 -0800 (PST)
>
>Hi Danny,
>
>Here are the main differences.
>
>Generic Traffic Shaping:
>
>- Works on any interface/subinterface type
>- Shapes traffic on that interface/subinterface basis
>- Can use any physical interface queuing (FIFO, PQ, CQ or WFQ)
>- Only uses WFQ as the shaping queue (that is, on the input of the shaper)
>
>
>
>In contrast, Frame Relay Traffic Shaping:
>
>- Works only on Frame Relay interfaces/subinterfaces.
>- Shapes traffic inside individual FR Virtual Circuits. (So there is no
>global pre-classification of traffic(as in GTS), but packets are sent to
>their individual VCs instead. Shaping is then performed on a per-VC basis,
>with a separate shaping queue/token bucket for each VC. Packets coming out
>of their individual per-VC shapers are then sent to the physical interface
>queue (Tx queue/Tx ring).
>
>
>- Only permits WFQ as the physical interface queuing method
>- Can use any queuing method as the shaping queue (that is, on the input of
>the shaper)
>
>Generic Traffic Shaping would be considered equivalent to Frame Relay
>Traffic Shaping when itbs configured on point-to-point Frame Relay
>subinterfaces.
>
>HTH.
>
>Best Regards,
>
>Nauman
>
>.
>--- "Connelly Sylvester" <connelly.Sylvester@btinternet.com> wrote:
>Hi Guys,
>
>Can someone please explain when to use GTS instead of FRTS or vice versa.
>
>Regards,
>
>Danny
>
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