Here's what I know 10.30 seems to work well with edge stacks - for example MS225 It has a lot of fixes However, it has some serious issues when used iin an environment that has MS-425s as the L-3 Stack and Dual LACP Links from MS-255 distributed edge sw to a MS-425 L3 stack From what I can determine after several sessions with TAC the last few days - Multicast was broke in this release and I would not recommend using it - especially if you have dual LACP Links The 425 stack seems to have excessive CPU utilization and becomes very unstable (random reboots, etc.) - until I disabled Multicast and the 2nd Link of all LACP Uplinks Has associated Spanning tree issues If you are running LACP Links to edge stacks, connectivity is intermittent - for example, WAPs attached to Edge Stacks will randomly disconnect from Cloud - Overall network throughput will be bad - pinging the Net Management IP of the 425 Stack will result in dropped pings and high latency It seems that Legacy Cisco switches running LACP Uplinks and connected to a MS425 Stack - work well I set up the LACP Links on the Legacy Cisco as follows: interface GigabitEthernet0/51 description UPLINK-TO-MDF-425-16-CORE-STK switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active spanning-tree bpdufilter enable ! interface GigabitEthernet0/52 description UPLINK-TO-MDF-425-16-CORE-STK switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active spanning-tree bpdufilter enable I used the bpdufilter enable because the 425 doesn't run legacy Cisco STP (pvst, etc.) This seems to work well I have been told that the developers are aware of these issues and are working on fixes Having said that, I was able to make a couple of networks stable at 10.30 by only using a single uplink from the Edge stacks (NO LACP) and disabling Multicast Routing in the 425 Stack If you need multicast - then I don't think 10.30 is for you If you need Multicast and or LACP - look at 9.37 If you don't need these or you are not using a MS425 stack as the core then 10.30 seems to work pretty well Lotsa fixes - but needs more I have been told they are working on these issues Good luck
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