They are a slate gray on the top and white underneath. I thought of a titmouse, but these birds don't have the tuft on their heads. They are agressive, fighting off other birds and even sometimes their own species. Maybe all birds are this way, but these little gray ones seem more agressive than others at the feeders.
Figure 3.6 An independent BSS (IBSS) is the most basic type of 802.11 wireless LAN. Figure 3.7 An Extended Service Set (ESS) 802.11 wireless LAN consists of multiple cells interconnected by access points and a distribution system, such as ethernet.
Rack Density System Installation Options. Cisco Systems provides a unique solution for customers who want to get the most out of their valuable data center space. The Rack Density System (RDS) is a special rack mount kit designed to hold up to three Cisco 7200 Series routers with modified front-to-back airflow. Front-to-back airflow patterns obviate the need for open air space next to each Cisco 7200 Series Router that normally flows air from side to side.