From: Richard Dumoulin (richard.dumoulin@vanco.es)
Date: Thu Apr 15 2004 - 11:07:32 GMT-3
The range for Tc is between 10 ms and 125 ms. With distributed traffic
shaping (DTS) on the Cisco 7500 series, the minimum Tc is 4 ms. The router
internally calculates this value based on the CIR and Bc values. If Bc/CIR
is less than 125 ms, it uses the Tc calculated from that equation. If Bc/CIR
is more than or equal to 125 ms, it uses an internal Tc value if Cisco
IOS(r) determines that traffic flow will be more stable with a smaller
interval. Use the show traffic-shape command to determine whether your
router is using an internal value for Tc or the value that you configured at
the command-line.
http://www.cisco.com/en/US/partner/tech/tk543/tk545/technologies_tech_note09
186a00800a3a25.shtml
Saludos !!
--Richard
-----Original Message-----
From: David Hurtado [mailto:dei2viccie@hotmail.com]
Sent: jueves, 15 de abril de 2004 14:47
To: ccielab@groupstudy.com
Subject: Default shaping interval (Tc)
Hello,
Which is the FR default shaping interval (Tc) for a CIR=1024000 bps ?
In the solutions for the lab i'm doing, Tc = 63 ms. But when i introduce a
FR map-class in the router with CIR=1024000 bps, the default Tc that appears
is 15 ms.
Could somebody tell me which is the valid Tc for CIR = 1024000 ?
Is there some method to know the default relationship CIR/Tc ?
Thanks a lot for the help
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