Though I have not completely ruled out our network... I am seeing individual VLAN interfaces (these each get IP addresses) on WiSMs that occasionally "fall off" - just stop responding. The net effect is that a given SSID is still present for clients to attach to, but the interface is gone, so there is no network usability. If I delete and recreate the interface, functionality is instantly restored. (or if the controller is rebooted). This is happening across three different 6500's, several different WiSMs Have ruled out duplicate IP addresses, and some ARP history is showing two MAC addresses (same root MAC, last digit varies as is seen when MACs are dynamically generated) for the same dynamic interface IP address, and in some cases the same MAC is showing up for the AP manager interface and the dynamic vlan interface. Not implying that all of this can't be explained, or that there is an issue with the WiSMs- but wondering if anyone else has seen any similar symptoms and found answers. Feel free to respond directly to me if you prefer. Regards- Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003
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