And if i used Meraki switch as Access switch then they need to form ether channel with Cisco 3850. Moreover can you recommend Meraki Model which can support more than 12 port , 10 G SPF + capability. You should have no problem connecting to the Cisco 3850. The Meraki and Cisco both support LACP for port aggregation. You may have to specify lacp on the Cisco, I can't remember if it defaults to that or the Cisco proprietary "Fast Etherchannel". As @akan33 mentioned, you will need to make sure the Cisco is using RSTP, not PVST, for spanning tree. Also, Cisco's default to native VLAN 1 for trunked interfaces, while the Meraki's are perfectly happy with no native VLAN, so make sure your trunk settings match. For higher density, look at the MS425 switches for 16 or 32 SFP+ ports or the new MS355 X2 switches that @BrandonS linked to for mGig copper ports.
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