Help with VLANs on SG200-18 and two SG200-08 switches

[rmd300301]

Hi everybody. My apologies but I'm only average at best with my CISCO skills. I have simple setup running a few network devices connected via 3 CISCO switches. It's small office and there are two rooms - one with servers and one with printer and pc's. Each room has 8-port SG200-08 switch.

Router/ firewall is Sonicwall TZ215 and it handles internal routing between VLAN's. Each SG200-08 was connected directly to TZ215 (no SG200-18 yet) and VLANs were working perfectly. Please see diagram below...

Problems started when I added in the middle larger SG200-18 to handle extra devices. Whatever I'm doing wrong but I can't make VLANs work anymore. Something I'm not setting up correctly in SG200-18.

Please help me to setup VLANS here - tagged, untagged, PVID, trunk........ I'm completely lost and already had to reset SG200-18 twice.

My working setup without 18 port switch was like this.

SG200-08 (1)
    g1  Trunk  1     1U,100T 
    g2  Trunk  1     1U   
    g3  Trunk  1     1U   
    g4  Trunk  1     1U   
    g5  Trunk  1     1U   
    g6  Trunk  1     1U            SERVER3    
    g7  Trunk  100   100U      SERVER1
    g8  Trunk  100   100U      SERVER2

SG200-08 (2)
    g1  Trunk  1     1U,50T,200T   
    g2  Trunk  1     1U   
    g3  Trunk  1     1U   
    g4  Trunk  1     1U           PC1A
    g5  Trunk  1     1U           PC1B
    g6  Trunk  50    50U        PC2A
    g7  Trunk  50    50U        PC2B
    g8  Trunk  200   200U     NETWORK PRINTER

Thank you in advance.

 

[Aleksandra Dargiel]

Hello,

Small switches would remain untouched but 200-18 needs to have the following settings:

 g15 Trunk  1     1U,100T 

 g16  Trunk  1     1U,50T,200T

 g17 Trunk  1     1U,50T,200T

 g18 Trunk   1      1U,50T,100T,200T

Sonicwall now would have only one port connected to SG200-18 with settinngs matching port g18 on big switch.

If you notice there is a change as now you would have only 1 port connecting your network to the Sonicwall, would advise you to use port 17 or 18 since they are uplink ports.

If you have tried to connect two ports to big switch STP would block one of the ports.

Let me know how it is going :-)

Aleksandra

[rmd300301]

Aleksandra, thanks a lot for your help. Just a little bit confused here as to what am I connecting to G17 on big switch (18 port).

g15 Trunk   1     1U,100T
g16 Trunk   1     1U,50T,200T
g17 Trunk   1     1U,50T,200T    ??????????????????
g18 Trunk   1     1U,50T,100T,200T

 

[Aleksandra Dargiel · Accepted solution]

Hello,

Oh I am sorry. I understood you have 3xSG200-08 and 2 of them with the same config :-). So no need to use this port for now.

Regards,

Aleksandra