Oh, that's a little different. That reminds me of the Catalyst instant access switches, they also had that limitation. Well in that case perhaps MS switches do support actual high number of VLAN's and they haven't found a way to translate that onto the Catalyst. Funny how architectures can differ so much. And no the 9300 is a highend access switch. Seeing that the regular MS switches do have fewer hardware features/options than Catalyst switches I believe the CAM/TCAM space is formatted differently. If you don't need that many features you can focus on having a huge number of VLANs. There is also the reason you only have 1 ACL set on an MS switch and it can only carry 100 or so entries. On Catalyst for example you can do ACL's per port, per VLAN, in dynamic sessions, for matching other features, MAC ACL's, so I do believe you lose alot of TCAM space to support those features.
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