On Thu, 10 Jan 2002, Ronald Warner wrote:
> Just need some clarifications, on the following scenarios, the same
> router is used but different subnets are involved, the load is the
> same, and there are 2500 users, no vlan involved.
>
> 1. using ten of the subnets in 10.1.0.0/255.255.255.0
> 2. using an unsubnetted 10.0.0.0/255.0.0.0 and using the first
> 2500 ip addresses
>
> If there is a server with ip address 192.168.9.1, which pc would it
> reach faster in the above scenario?
>
> For me, i would say that scenario 1 would be faster than scenario 2
> since scenario 1 has a smaller broadcast domain -- only 254 pcs
> vs. the 2500 pcs in the second scenario.
>
> Is my assumption correct?
>
in general, scenario 1 will be better for most cases. the worst case
scenario for 1 where it becomes about equal to scenario 2 is when all the
connecting hubs/switches are all bridged together (at the data-link
layer). all packets will still flood the entire lan. logical subnetting
is at its best when there is also physical segmentation to separate each
broadcast domains. you can place a linux pc router with multiple lan
cards to do this.
pong
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