From: Tony Schaffran (groupstudy@cconlinelabs.com)
Date: Sun Jun 06 2004 - 14:11:46 GMT-3
It all depends on the service you are getting from your provider.
Is this a private p-to-p FR circuit or is it Internet access with a PVC
between the two sites?
Is the CIR you mention configured at both sides?
Is the host site an aggregation point? If so, what is the pipe into the
host site?
Are you getting some kind of QoS from your provider or is it best effort?
Keep in mind, even with a private p-to-p connection, you are not the only
PVC across the backbone. The provider may have a hop with intermittent
congestion.
Exactly, how are you configured for traffic shaping?
I actually work for an ISP and we struggle with these types of problems
daily.
Tony Schaffran
Network Analyst
CCIE #11071
CCNP, CCNA, CCDA,
NNCDS, NNCSS, CNE, MCSE
www.cconlinelabs.com
Your #1 choice for online Cisco rack rentals.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Sam
Joseph
Sent: Sunday, June 06, 2004 8:03 AM
To: ccielab@groupstudy.com
Subject: Bandwidth Question on a Frame-Relay Network
Group,
Have 512 Kbps P-to-P Pvc between my site and branch office. The port speed
is 512 Kbps and the Cir is also 512 Kbps. In the Past we had issues with
vofr, after increasing the cir to 512 kbps (implemented traffic shapping,
allocated bandwidth for voice, frame-relay fragmentation), 95 % of our
problems gone away. Now I have got a question.
Since CIR and Port speed are at 512 Kbps, at any given time my bandwidth
(guaranteed) is 512 Kbps.If my understanding is right, this bandwidth =
(inbound + out Bound) traffic. Is this Understanding correct or Am i
shooting at my foot?.
thx,
sam.
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