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SG200 26 - functioning like a hub? ll traffic visible

I have 3 different sg200-26 switches, one of which is acting like a hub

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New Member

SG200 26 - functioning like a hub? ll traffic visible

I have 3 different sg200-26 switches, one of which is acting like a hub, and I don't want it to do so.

I have tried clearing the MAC tables but it still broadcasts all traffic to all ports.

This configuration is pretty much out-of-the-box. All I have done is force a few ports to operate at gigabit full-duplex.

Green

SG200 26 - functioning like a hub? ll traffic visible

Hi Time2panic, ensure the switches are on the 1.1.2.0 firmware and give it a factory reset after. This should clear it up.

-Tom Please mark answered for helpful posts http://blogs.cisco.com/smallbusiness/
New Member

SG200 26 - functioning like a hub? ll traffic visible

Thomas is spot on this one. Firmware versions 1.1.1.8 and below have a MAC table bug that causes multicast traffic to appear after 49 days of uptime unless rebooted. The dynamic MAC table stops purging old entries and learning new ones.  Release 1.1.2.0 is stable and excellent and is what you should load for now.

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