Guru Elite

Re: Broadcast Multicast ( BCMC ) Bonjour Problem



I think large wireless only subnets are OK, the main issue seems to be related to subnets that span wired and wireless devices - then you start having some issues when you dont do something with your broadcasts.  I have seen wifi networks where 60% of the traffic was broadcasts because of this configuration...  And the admins still had no idea why this was happening....

 

It is a frustrating issue, that is easily corrected, and in my opinion manageable subnets just make things easier for everything. 


Danstl,

 

You can have wired and wireless in the same VLAN as long as you ensure that you drop/control broadcasts on ALL WLANs, and it will certainly work.  You do NOT want to have them in the same VLAN because it seriously complicates troubleshooting.  Running a large subnet WLAN without broadcast controls more often that not makes it unusable.  It just gets worse when you add wired traffic.

 

Recap:

- Your users can keep their large subnets, even with wired clients as long as you enable broadcast controls.

- The downside is that it complicates troubleshooting when wired and wireless are in the same VLAN

- If those users run bonjour applications, they can run Airgroup code, where you can do that with broadcast controls, and it will work.

 


*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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