Forum Discussion

Aspirant

Aug 28, 2018

Solved

Help with STP on GS748TP

I've been having problems with a SONOS system which has wired players to my Netgear GS748TP switch. SONOS support has given some advice on setting STP on the switch to help resolve the problem. ...

Troubleshooting

JohnC_V
Sep 04, 2018
Andyh747,

The solution presented by SONOS applies to managed switch and not smart switches. I suggest you to open a chat / case online on NETGEAR support and please let them know the status of the switch and escalate the case if needed.

Regards,

Andyh747

Aspirant

Aug 31, 2018

Thanks for reply.

Switch already running latest firmware. Have tried classic STP but I am unable to select Flooding with STP enabled. Tried everything but as soon as you select STP the switch defaults to Filtering rather than Flooding.

JohnC_V

NETGEAR Employee Retired

Aug 31, 2018

Andyh747,

May I know the issue when the BPDU is in default setting? Have you tried to reset it to factory default and re-create the configuration? I saw some of the forum posts in SONOS that they didn't even change the BPDU and it worked.

Regards,

Andyh747
Aspirant
Aug 31, 2018
I was experiencing SONOS drops and intermittent slow network performance. However I couldn't identify if the network performance was down to SONOS or the switch. SONOS support seemed to think it was the switch settings but after they changed them the SONOS unit in question dropped off and only when I reversed the settings did things change. So far I haven't had any problems since so it's all a bit confusing for now.

My next move will be a reset of the switch.

Out of interest should I be able to select BPDU to Flooding with STP enabled? As it stands I can't and wonder if this is normal.
- JohnC_V
  NETGEAR Employee Retired
  Sep 03, 2018
  Andyh747,
  
  I double checked the manual and it says that you can only set the BPDUs when STP is disabled on the device or interface.
  
  Here is the reference.
  
  Regards,
  - Andyh747
    Aspirant
    Sep 03, 2018
    Thanks for the reply.
    
    Yes I understood that as well. I should have been clearer.
    
    I should have explained that I disabled STP and then set the required BPDU to Flooding. However on enabling STP again, the BPDU setting defaulted back to Filtering. What I was enquiringly about is whether this is normal behaviour. I.e. Is it possible to have BPDU in Flooding mode AND have STP enabled? At present the switch will only allow STP with BPDU in Filtering.
    
    Hope that clarifies things.