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Problems adding switches

 
Lewis2412
Occasional Advisor

Problems adding switches

I have a network of HPE 1920 switches and I have added some HPE 1920S switches and am having issues getting everything to work properly now. I have attached a basic map of the network. The issues are:

When connected to  Switch1, port1
-cannot connect to Switch2 or Switch3
-no Internet access on Port 1
-all users can access the network and Internet

When connected to Switch2, port1
-cannot connect to Switch1 or Switch4
-port 1 has Internet access
-all users can access the network and Internet

When I set Switch2 and Switch3 to have the same VLAN settings as Switch1 and Switch4, I lose all connections

Switch1 configuration (1920):
-Ports 22, 24, 28: have untagged VLAN1; tagged VLAN2; trunk
-Ports 2-20, 23: intagged VLAN2
-Port 1: left alone for management

Switch2 configuration (1920S): default settings
--all users can access the network and Internet

Switch3 configuration (1920S): default settings
-all users can access the network and Internet

Switch4 configuration (1920): 
-Port 1: management
-Ports 2-22: untagged VLAN2
-Port 24: untagged VLAN1; tagged VLAN2; trunk
--all users can access the network and Internet

I need help getting all the switches to talk to each other properly so that everyone is on VLAN2. 

I need to add VLAN3 for VOIP phones on all user ports on all switches.

Any suggestions??

2 REPLIES
HP-Browniee
Respected Contributor

Re: Problems adding switches

Hello

 

I have a theory for you.

I think your Managment vlan for your switches is vlan 1.  if that is the case make sure you configure that vlan on the uplink to switch 2 and 3.

As i can see on your drawing, you connect switch 2 and 3 on vlan 2, so it is normal they can not reach switch 1 and 4.

 

Kind ragards

 

Vince-Whirlwind
Honored Contributor

Re: Problems adding switches

I agree.

Configure Switch1 as follows:
VLAN3 voice
port4-21: Trunk, VLAN2 untagged, VLAN3 tagged
Port2,3,22: Trunk, VLAN1 UNtagged, VLAN2 tagged, VLAN3 tagged

Configure all 3 other switches as follows:
ports24: Trunk, VLAN1 UNtagged, VLAN2 tagged, VLAN3 tagged
port2-23: Trunk, VLAN2 untagged, VLAN3 tagged

That's Layer2.

Next you have Layer3 to worry about. What is doing the routing for all your VLANs?
Generally, you would use either
Switch1:
   - configure the router address for each VLAN on that VLAN's interface on this switch,
   - put port 24 untagged in VLAN1
   - give the router a VLAN1 IP address
   - configure a default route on Switch1 pointing at the router
   - configure routes on the router pointing at Switch1 for each subnet (ie VLAN2 & VLAN3 subnets)
OR
Router:
   - put VLAN1 untagged, VLAN2 tagged and VLAN3 tagged on port 24 on Switch1
   - Put all 3 VLANs the same on the router interface.
   - configure the router address for each VLAN on their respective VLAN interfaces on the router.