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Is there a way to interconnect VLANs using this diagram?
MLS0 has this configuration:
interface FastEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
And SW0:
interface FastEthernet0/1
switchport mode trunk
!
interface FastEthernet0/2
switchport access vlan 175
switchport mode access
!
interface FastEthernet0/3
switchport access vlan 176
switchport mode access
!
interface FastEthernet0/4
switchport mode trunk`
To get traffic from one VLAN to another VLAN, you need to use a router. The layer-3 switch could be used as a router. The hosts connected to each VLAN would use the SVI on the layer-3 switch for it VLAN as the gateway.
ip routing
!
interface Vlan175
ip address 10.175.0.1 255.255.255.0
no shutdown
!
interface Vland176
ip address 10.176.0.1 255.255.255.0
no shutdown
!
The PCs on VLAN 175 would use 10.175.0.1 as their gateway, and the PCs on VLAN 176 would use 10.176.0.1 as their gateway.
With two layer-3 switches (routers) you could use a FHRP (First Hop Redundancy Protocol), e.g. HSRP, to create a virtual gateway that the PCs use as their gateway, and the real routers will decide which is the active gateway, but will automatically fail over in the event of a router failure.
To ensure connectivity between Different Vlan . Routing has to be done between both Vlans , Layer3 device is required for Configuring routing between Vlans . In router inter-Vlan routing need to be done to ensure connectivity between two Vlans by Configuring inter-Vlan routing .
In layer3 switch Switch virtual interfaces(SVI) need to be configured and enable" ip routing "
