From: Ron Royston (ccie6824@xxxxxxxxxxx)
Date: Mon Aug 27 2001 - 17:03:21 GMT-3
The frames in excess of the CIR get flagged for "discard eligible" and may
or may not make it through the providers network depending on network load.
If the frames are discarded, a higher layer transport function will
recognize this and may request a retransmission. In the case of voice, a
retransmission will not occur.
Use traffic shaping as a prevention measure to "DE" flagged frames, either
generic of frame-relay specific. GTS will constrain all or a subset of an
interfaces traffic to a particular bit rate and queue the bursts for
transmission. FRTS does the same and can dynamically throttle back the bit
rate based on the presence of congestion in the FR network.
Additionaly, if you want to prioritize voice over other types of traffic,
you can do that too.
Ronnie Royston, CCIE#6824
Avnet Enterprise Solutions Division
(713)305-6615 cell
>From: Jeongwoo Park <jpark@wams.com>
>Reply-To: Jeongwoo Park <jpark@wams.com>
>To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
>Subject: CIR on Frame-relay
>Date: Sun, 26 Aug 2001 13:47:50 -0700
>
>Hi all
>Quick question for you guys.
>What happens if data transfer rate in frame relay exceed CIR?
>Would there be a delay or retransmission?
>
>What if Voice transfer rate in Frame relay exceed CIR?
>
>Thanks in adv.
>
>JP
>**Please read:http://www.groupstudy.com/list/posting.html
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