MS 12.33 release candidate available - simply unspecified performance and stability improvements...
Switch firmware versions MS 12.33 changelog
Alerts
MS210/225/250 switches cannot forward IPv6 Router Advertisement and Neighbor Solicitation packets when flood unknown multicast is disabled (has always been true)
MS390 upgrades from MS 12.31 or earlier will trigger a full system reload
MS390 client authentication may fail closed if RADIUS server passes unsupported AVPs
Auth session state on RADIUS server may be stale following an MS390 CoA update until RADIUS Accounting is supported
Additions
Support for MS390 Series Switches
Loop Detection on MS210/225/250/350/355/410/420/425/450 series switches
MAC Flap Detection on MS210/225/250/350/355/410/420/425/450 series switches
MS390 Local Status Page identifies ports on other stack members by name instead of MAC address
Features now supported on MS390: RADIUS Testing, RADIUS CoA
Bug fixes
Various performance and stability improvements
Known issues
Routing to a particular next-hop can fail under specific conditions for non-MS390 switch stacks
MS390 stack members may not report client-level detail
MS390 series switches Max MTU is limited to 9198 bytes
MS390 series switches will not display packet details in the DHCP Servers page
MS390 series switches do not support the 'next-server' or 'bootfile' parameters in DHCP messages
Rebooting a single switch in an MS390 stack will reboot the entire stack
LLDP frames from MS390 series switches will use a single system name instead of the Dashboard given name
MS390 series switches will not display the advertising router ID for OSPF
MS390 series switches with OSPF enabled will default to an IP MTU of 1500 bytes on every OSPF enabled interface
MS390 series switches do not support the multicast routing livetool
MS390 series switches do not support tagged traffic bypass for voice on ports with a Multi-Auth access policy
Dynamic VLAN assignment from a RADIUS server on MS390 series switches must already be an allowed VLAN on the port for it to function
MS390 series switches may not display link state on links at mGig speeds (2.5G, 5G)
MS390 series switches do not currently support the following features: VRRP, SM Sentry, Syslog server, SNMP, Traceroute, IPv6 connectivity to dashboard, Meraki Auth, URL Redirection, MAC Whitelisting, RADIUS Accounting, QoS, Power Supply State, PoE power status/usage, Loop Detection, UDLD, MAC Flap Detection
SM Sentry does not support Windows based clients (predates MS 10.x)
MS425 series switches do not forward frames larger than 9416 bytes (predates MS 10.x)
MS350-24X and MS355 series switches do not negotiate UPoE over LLDP correctly (predates MS 10.x)
