From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Sun Feb 11 2007 - 22:34:59 ART
The subnet does not relate directly to the broadcast domain.
What the subnet controls is which hosts the end station will ARP for
instead of sending the traffic to their default gateway. In typical
designs you will commonly see that a subnet does relate to a broadcast
domain (VLAN), but it's not a necessity. For example if you have one
host 10.0.0.1/24 and another 10.0.0.2/16 both will directly ARP for each
other because 10.0.0.1 sees that 10.0.0.2 falls within 10.0.0.0/24,
while 10.0.0.2 sees that 10.0.0.1 falls within 10.0.0.0/16.
HTH,
Brian McGahan, CCIE #8593 (R&S/SP)
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
network freek
Sent: Sunday, February 11, 2007 4:22 PM
To: ccielab@groupstudy.com
Subject: BD Size
Hi there,
Our network grow fast here. And need break broadcast domains (BDs)
into smaller pieces. We are planning breaking all BDs by implementing
VLANs. I read somewhere that the max number of end stations in one
broadcast domain is ideally (or optimally?) 500. Shouldn't this mean
that when creating VLAN the subnet should be not more than /24?
If in a subnet /24, an end station is set to other than /24, say /16,
what would be the impact to the performance of the end station and to
the network? What if another end station is set to /25 for example?
This archive was generated by hypermail 2.1.4 : Thu Mar 01 2007 - 07:38:46 ART