Wireless Access

Reply
New Contributor
Posts: 3
Registered: ‎02-20-2013

Broadcast counter Keeps ticking on the uplink interface aruba 3600

Hi,

We have a aruba 3600 model controller connected to switch on its port ge0/3.The port is configured as trunk and once i see the show interface ge0/3 the broadcast counter keeps increasing rapidly every time.Need suggestion to restrict the broadcast to dhcp and Arp.

Kindly suggest.

MVP
Posts: 1,409
Registered: ‎05-28-2008

Re: Broadcast counter Keeps ticking on the uplink interface aruba 3600

[ Edited ]

Hi,

Try to do this:

Go to Configuration> Wireless> AP Configuration. Edit your ap group. Expand Wireless Lan, expand Virtual AP and click on the virtual AP with your ssid. In the right Pane you should enable"Drop Broadcast and Multicast" and "Convert Broadcast ARP requests to unicast". Click on apply in the lower right corner.

 

When I enable these settings this message appears "Warning broadcast-filter arp should be enabled with this option. Otherwise ARP requests will be dropped".

 

it's more then recomended that to always turn on Drop Broadcast and Multicast, Convert Broadcast ARP requests to unicast and  broadcast-filter ARP to have a more realible network.

turn this on in all vaps + mark -> broadcast filter ip on the stateful firewall.

 

 

it should reduce the broadcast the clients are using over you Wi-Fi deployment.

Let us know if it solved your issue.

 

me.

*****************2Plus Wireless Solutions****************************
Aruba Airheads - Powered By community for empower the community
************ Don't Forget to Kudos + me,If i helped you******************
Guru Elite
Posts: 21,487
Registered: ‎03-29-2007

Re: Broadcast counter Keeps ticking on the uplink interface aruba 3600



rranjit4 wrote:

Hi,

We have a aruba 3600 model controller connected to switch on its port ge0/3.The port is configured as trunk and once i see the show interface ge0/3 the broadcast counter keeps increasing rapidly every time.Need suggestion to restrict the broadcast to dhcp and Arp.

Kindly suggest.


You should enable BC-MC (Broadcast Multicast Optimization) at the VLAN level.

 

Go to configuration> Network> IP and Edit the VLAN that you want to drop all broadcasts from.  Enable BC-MC Optimization at the VLAN level.  That will drop downstream broadcasts on the wireless towards your clients (the same as broadcast filter-all on the Virtual AP), but it will also drop outbound broadcasts on the wired side of that VLAN, as well.

 

bc-mc.png



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

New Contributor
Posts: 3
Registered: ‎02-20-2013

Re: Broadcast counter Keeps ticking on the uplink interface aruba 3600

Hi All,

 

I tried all the options ,still the broadcast counter keeps on increasing.

Every time when i hit the show inter gi 0/3 i can see the couter increasing on average by 4.

Is that normal ?

Guru Elite
Posts: 21,487
Registered: ‎03-29-2007

Re: Broadcast counter Keeps ticking on the uplink interface aruba 3600

An ARP and DHCP requests and other conversations regular are broadcasts, so yes you will not totally eliminate broadcasts on a link.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Search Airheads
Showing results for 
Search instead for 
Did you mean: