Forum Discussion

britesc

Aspirant

Oct 28, 2017

Solved

LAG setup JGS524Ev2 and GS752TS kills network

Hi,

I am attempting to create a 2 Wire LAG between a JGS524Ev2 and a GS752TS

I am using ports 1 and 2 on each switch.

I have created a LAG group for ports 1 and 2 on each switch.

The JGS524Ev2 is in one room whilst the the GS752TS is in another.

I have ensured there is no extra connection between the two switches other than the 2 Wire LAG.

The JGS524Ev2 has a laptop and a couple of NAS connected.

The GS752TS has 2 DNS servers, an NTP server, a Wireless Access Point and a pfSense Router connected.

Before I connect the LAG cables I check communication with a single wire in Port 5 on each of the 2 switches. Everything connects, talks and works fine.

I disconnect the cable in Port 5 and connect the 2 wires of the LAG at which point the Wireless Access Point goes berserk, turning itself on and off, the pfSense Router ceases to function as do the DNS and the NTP servers.

Yet the laptop still functions and I can call up the GUIs for the 2 switches, which tell me they are transmitting at 1000MB.

I am obviously doing something wrong, but followed the NetGear guides that I could find.

Can anyone give me some advice please, such as unplug all ports, establish the LAG then replug the devices etc. Or any other strategy that let's everything work. Sometimes the NetGear guides are a bit nebulous...

Thanks and kind regards,

britesc
Oct 31, 2017
Hi DaneA,
Thanks for the reply.
I am now in the process of tring it out.....

GS752TS B5.2.0.2 ,5.3.0.31
JGS524Ev2 2.0.1.40

Will report back status ASAP
Thanks and kind regards,

jB :)

3 Replies

Replies have been turned off for this discussion

DaneA
NETGEAR Employee Retired
Oct 30, 2017
Hi britesc,

Be reminded that the JGS524Ev2 switch only supports static LAG. On the GS752TS switch, a LAG interface can be either static or dynamic but not both.

Make sure that static LAG is set as the LAG type on the GS752TS. On the web-GUI, go to Switching > LAG > Basic > LAG Configuration then check the LAG type on ports 1 and 2.

Also, STP is not supported on the JGS524Ev2 switch. On the GS752TS switch, go to Switching > LAG > Basic > LAG Configuration then check if the STP Mode on ports 1 and 2 are disabled.

You may want to start from scratch by disconnecting all devices that are connected on both JGS524Ev2 and GS752TS switches. Then, configure static LAG then connect all devices to their designated ports on both JGS524Ev2 and GS752TS switches.

What is the current firmware version of the JGS524Ev2 switch as well as the GS752TS switch?

Regards,

DaneA
NETGEAR Community Team
- britesc
  Aspirant
  Oct 31, 2017
  Hi DaneA,
  Thanks for the reply.
  I am now in the process of tring it out.....
  
  GS752TS B5.2.0.2 ,5.3.0.31
  JGS524Ev2 2.0.1.40
  
  Will report back status ASAP
  Thanks and kind regards,
  
  jB :)
- britesc
  Aspirant
  Oct 31, 2017
  It appears to be working, I am testing each device in turn but I sense an increase in throughput / speed which is fantastic, plus I now have some resilience.
  I will attempt to bring my other switches into the fold... so to speak.
  I have a M4100 26G to add to the GS752TS and two XS716E to link together as the 10G backbone which should make server backups a dream. Then some smaller switches.
  I get the feeling that the main salvation was unplugging all devices and methodically reconnecting, such as adding the pfSense router and interfaces first then moving onto the DNS, NTP, IPTV and then the NAS, SAN and lastly workstations and access points.
  
  At this stage all apeears well so keeping everything crossed for a couple of hours.
  
  Kins regards,
  
  jB :).