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Frequent Contributor II

Ping drops while client is roaming between APs

Today I was doing post survey for on customer & noticed that while a client is roaming between APs there is one ping drops. Client was pinging google.com.

So my question is:

Is this a expected behaviour ?

Or I need to work on this to fix .

rana
Guru Elite

Re: Ping drops while client is roaming between APs

It is very typical to see one or two ping drops during a roam.  Clients can scan other channels while roaming and pings are not retried, so it is typical.

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Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
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Community Manager

Re: Ping drops while client is roaming between APs

Second that.

 

In network verification testing this behavior was saw at every site.



Airheads Community - The best place to Connect. Engage. and Learn.
Guru Elite

Re: Ping drops while client is roaming between APs

Normal

Tim Cappalli | Aruba Security
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Frequent Contributor II

Re: Ping drops while client is roaming between APs

Thanks,

May I know the reason behind this.
Sent from Outlook Mail for Windows 10 phone
rana
Community Manager

Re: Ping drops while client is roaming between APs

It's because of the re-association process that go on "behind the scenes".



Airheads Community - The best place to Connect. Engage. and Learn.
Guru Elite

Re: Ping drops while client is roaming between APs


Rana wrote:
Thanks,

May I know the reason behind this.
Sent from Outlook Mail for Windows 10 phone

- "Clients can scan other channels while roaming and pings are not retried, so it is typical.".  While a client is scanning other channels, it is not processing traffic on the data channel.  

- There also could be contention:  Wireless is a shared mechanism and sometimes traffic does not go through the first time.  Combine that with scanning when changing access points, and there could be a drop or two.

- Pings are never retried, so if it is missed, there is nothing further up in the application layer to retry a ping that is missed; it is just missed

******************
Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
******************
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