Hi and thanks for taking the time to read this. I have some understanding of networking but am looking for help designing the best solution for an environment.
It consists of approx ~30 users with computers and IP phones. We have a Cisco ASA5505 for firewall, VPN and internet gateway, two HP V1910 24-port PoE switches for the LAN (and powering the phones) and two more regular HP V1910 24-port switches where hosts and storage reside for virtual infrastructure (ESX) and other network appliances.
What is the best practices for linking these all together? I've sketched a rough diagram below on how it looks currently. Currently, links between switches are untagged on the data VLAN and tagged on other VLANs to allow traffic on those to pass between switches. Could this be improved in any way? Please ask anything if needed to clarify. Thank you.
PoE SW 1------PoE SW 2------ASA5505 | | | | SW 1----------SW 2