The difference is in number of DLCIs supported and in Cisco specific features.
With Cisco LMI you have support for ForeSight, which is a congestion management technology pattented to Cisco. It is much better than FECN/BECN. In conjunction with Cisco WAN switches you will get better end to end performance.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...