Re: Speed Test using wireshark

[Randy Grein <randygrein () comcast net>]

Hmm, yes. That is, you will not see more than 10 Mbits on the internal interface for long. Even if tcp & other 
protocols did not have throttling mechanisms the router would start dropping packets, in effect throttling traffic.

This is not a silly question; I have seen a number of network problems caused by trying to stuff too much traffic 
through a link and relying on throttling mechanisms to keep things flowing smoothly. They do, up to a point. Then 
critical traffic is dropped and someone gets very, very angry.

Sent from my iPhone

On Jun 20, 2011, at 4:13 PM, rajat sharma <rajat2683_2_1 () yahoo com> wrote:

> HI All,
>
>
> Topology
>
>
>
> hosts---------------router----------------isp
>
> Bandwidth between hosts and router is 100 Mbps
>
> Bandwidth between router and ips is 10 Mbps
>
>
> When i am taking captures on the router interface which is connected to the host for tcp traffic my upload speed is 
> 10 Mbps.
> Captures taken on the router interface connected to the isp shows speed of 10 Mbps which is expected.
>
> However should i expect to see 100 Mbps speed on the router interface connected to the hosts if they try to upload 
> 100 Mbps traffic or 10 Mbps which i am getting now ?
>
> Is there any flow control mechanism that TCP has that would control the flow of the outbound data as seen on the 
> router interface connected to the hosts?
>
> Rajat
>
>
>
>
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