Having an issue with a voice vlan setup but only on my Cisco stack, Brocade stack works. DHCP is on VLAN5 (for phone and pc) using Option 156 for voice VOIP is on VLAN100
Shoretel Phone1 and PC1 on the Brocade
dual-mode 12 no cdp enable inline power voice-vlan 100 trust dscp
Shoretel Phone2 and PC2 on C9300
switchport access vlan 12 switchport mode access switchport voice vlan 100 auto qos trust cos no cdp enable
I believe they are basically the same in configuration:
Trunk Vlan 100 (tagged) Native vlan 12 (untagged)
I am unable to get DHCP on Phone2, PC2 works.