I am trying to understand how you connect Access Switches (L2) to Distribution Switches (L3) and create redundancy.
As shown in the screenshot below , each Access Switch has 2 Trunks , one Trunk to a separate L3 Switch.
Well, if I am understanding, L2 will have VLANs configured and VLANs will be Trunked to L3 Switches.
The DIstribution(L3) Switches can be connected to each other with 2 Links(though on the picture it shows one link) and for the 2 Links I am not sure if they can be configured as L2 or L3 Etherchannel bundel? Also probably the L3 switches can be configured with HSRP and one Virtual IP address.
Assuming my statement above is correct.
- how do you make all VLANs on L2 switches talk to each other ? are you going to configure SVIs on each L3 Switch ? then on L2 you configure Default Gateway for each VLAN to be the SVI ip address created on L3 Switches.?
you will configure VLANs on L2 switches to have as the default gateway the unique HSRP Virtual IP. ?
- in this scenario , assuming L3 (Distribution switches) are connected to each other through L3 Etherchannel, will it be necessary to have STP running on Access Switches /Distribution Switches?