Netgate SG-1000 microFirewall

Author Topic: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920  (Read 486 times)

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Offline newberger

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I have SG-3100 as router, with HP 1920-24G switch.  From there, two cable runs go to rooms with multiple devices: AppleTV, WAP, Sonos, TV, etc. and previously I have had unmanaged switches in each room.

I'm implementing VLANs and need to change out those switches to something that can support VLAN.  I tried Netgear SG108Tv2 and after several days of problems and troubleshooting found out that they are not compatible with Sonos.

https://sonos.custhelp.com/app/answers/detail/a_id/42

Any suggestions for a replacement would be appreciated.   I have seen some threads on this forum talking about the TP-Link SG108E, with mixed reviews.

Offline NogBadTheBad

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #1 on: February 14, 2018, 09:34:00 am »
I use 3 of these as I need POE scattered about the house and they work fine :-

https://www.linksys.com/gb/p/P-LGS308P/

Other people swear by the Cisco small buisness range.

I wouldn't touch TP-Link with a barge pole :)

Couldn't vouch for the Sonos issue BTW.

Why not get HP switches if your happy with them ?
« Last Edit: February 14, 2018, 09:39:57 am by NogBadTheBad »

Offline johnpoz

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #2 on: February 14, 2018, 09:52:33 am »
"SG108Tv2"

Your switch is not on that list from sonos - your sg108T is smart switch, the switches they list the gs108v1 and v2 are DUMB switches..

What exactly was not working with your sonos - just put them on the same layer 2 and they should be fine.
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Offline newberger

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #3 on: February 14, 2018, 01:23:48 pm »
nog - thanks for the feedback on the TP-Link.  I did see some lower cost 8 port HP switches, I'll search again, if needed - possible fix below.

john - my bad, I made a typo on the Netgear model, I meant GS108Tv2.  :-\ The Sonos list doesn't distinguish whether it's all GS108v2, or a specific model (GS108, GS108E and/or GS108T).  Given my problem (below) I assumed my model Netgear is included.

My issue is that the Netgear switch works fine with my Ruckus AP and Apple TV connected, but when I connect the Sonos Connect (aka Bridge), I experience extreme latency across the LAN.

So, Netgear just told me I need to enable STP on the switch and it will work.  I will give it a try this evening.  :D

Further information, for anyone interested: https://en.community.sonos.com/troubleshooting-228999/sonos-and-the-spanning-tree-protocol-16973

Offline johnpoz

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #4 on: February 14, 2018, 01:30:12 pm »
Yeah if your sonos is on wifi and wired and it bridges that would cause big problem.  STP will block the port...
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Offline NogBadTheBad

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #5 on: February 14, 2018, 02:00:19 pm »
So, Netgear just told me I need to enable STP on the switch and it will work.  I will give it a try this evening.  :D

Ewww why wouldn't it be enabled by default, the bunch of chumps.

Offline johnpoz

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #6 on: February 14, 2018, 02:54:07 pm »
I would assume not enabled by default because the admin of the network should configure it how they want.  Do they want RTP or RSTP?  Rare that a such small switch would be a root bridge, etc.  I would assume that many a users of such switches never even log into the gui and use it as just dumb switch.

I could see someone else complaining WTF they have STP enabled out of the box default for? ;) 

You can never win... No matter what you do.





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Offline johnkeates

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #7 on: February 14, 2018, 03:56:15 pm »
HP 1810-8 maybe?

Offline Derelict

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #8 on: February 14, 2018, 03:57:56 pm »
Why wireless and wired on the sonos? Shouldn't it be one or the other?

The easiest way to prevent layer 2 loops would be to not make the loop in the first place.
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Offline VAMike

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #9 on: February 14, 2018, 04:02:32 pm »
Why wireless and wired on the sonos? Shouldn't it be one or the other?

The easiest way to prevent layer 2 loops would be to not make the loop in the first place.
It's a mesh device, that's kind of the point.

Offline Derelict

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #10 on: February 14, 2018, 04:33:43 pm »
Then only one or none should be connected to wired I would think.

If they expect functioning STP on home networks they're in for a long, hard ride.
« Last Edit: February 14, 2018, 04:37:10 pm by Derelict »
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Offline VAMike

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #11 on: February 14, 2018, 04:40:58 pm »
If they expect STP on home networks they're in for a long, hard ride.
No, they need at least that the switch won't block their own STP from letting them figure out that they are looping. Most consumer dumb switches are ok for that--they don't understand the STP broadcasts and just pass them along like anything else. Where they run into problem is semi-smart switches that filter the STP broadcasts without actually participating in STP. My newer netgear has a "Forward BPDU while STP Disabled" option to at least control that behavior rather than silently (and unconditionally) dump them. On smarter switches you can fix that by turning on STP, but if a vendor has a semi-smart switch that knows enough about STP to not broadcast a BPDU but not enough to actually participate in STP (presumably so it can be sold at a different price point than the same ASIC with a different GUI) then you need a new switch or a new speaker system.

They'll probably have fewer problems than google has run into trying to actually use multicast in the chromecast. It's amazing how many ways vendors can find to screw that up.

Offline jahonix

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #12 on: February 14, 2018, 05:50:16 pm »
When using a SONOS bridge all other devices must reside on their own WLAN mesh. No Playbar etc. may be connected with an ethernet cable or other WIFI.

That's what is so bad about their design: having to use their self "managed" mesh WLAN network in a usually crowded HF environment.

But since everybody but me (and three others...) uses SONOS it has to be great...
« Last Edit: February 14, 2018, 06:09:55 pm by jahonix »
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Offline VAMike

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #13 on: February 14, 2018, 05:59:44 pm »
But since everybody but me uses SONOS it has to be great...
I find it hard to believe that "everybody" puts thousands of dollars into home speakers.

Offline jahonix

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Re: 5 or 8 port switch recommendation - daisy-chained downstream from HP 1920
« Reply #14 on: February 14, 2018, 06:10:18 pm »
 ::)
Did I mention that I even sell this stuff to clients? Still don't like it, though. Want one?   :P
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