From: Ananth Vk (ananth.vk@tcs.com)
Date: Thu Oct 25 2007 - 04:38:18 ART
Hi All,
I need a small clarification on eigrp ip bandwidth-percent command
Following is the link and im pasting the extract from this link below..
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094063.shtm
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interface Serial 0.1 point-to-point
bandwidth 25
ip bandwidth-percent eigrp 123 90
Note that EIGRP will not use more than 22.5Kbps (90% of 25K) on this
interface, even though its
capacity is 56Kbps. This configuration will not affect user data capacity,
which will still be able to use
the entire 56Kbps.
Query
1.If EIGRP uses 22.5Kbps out of 56Kbps howcome the entire 56Kbps can be
used for data traffic
2.Is BW for data not dependent on BW used for EIGRP updates ?
If im right this whole concept is only to have a control on % of BW for
updates.
Shouldnt we have less BW for routing updates and more for data ?
But i wonder why by default EIGRP will use 50% of default BW
-----------------------------------------------------------------------------------
Alternatively, if you want to set the interface bandwidth to reflect the
PVC capacity, you can adjust the
bandwidth percentage for EIGRP. In this example, the desired bandwidth for
EIGRP is (256K/10)*.9 =
23.04K; the bandwidth percentage would be 23.04K/56K = .41 (41%). So the
same effect would be
had by configuring:
interface Serial 0.1 point-to-point
bandwidth 56
ip bandwidth-percent eigrp 123 41
1. In this example im not sure why PVC capacity was desired to be
23K....and what's that 0.9 for, im a bit confused..
---------------------------------------------------------------------------------------
Thanks
Ananth
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