2H22-08R Overview
1.32H22-08R OVERVIEW
The 2H22-08R is a Fast Ethernet standalone device that has six RJ45 switched ports and two optional Fast Ethernet Interface Module ports (100BASE-TX, 100BASE-FX, and 100BASE-F3) that provide twisted pair, multimode, and single mode fiber optic cabling connectivity.
Figure 1-1 The 2H22-08R
The 2H22-08R supports traditional IEEE 802.1d switching (bridging), IEEE 802.Q switching, and Cabletron Systems SECUREFAST Switching Virtual Network technology. The 2H22-08R is used to connect individual high-bandwidth user devices, such as workstations, and provide a central switching point for multiple 10/100 Mbps Fast Ethernet segments.
1.3.1Auto-Negotiation
Twisted Pair ports on the 2H22-08R can auto-negotiate the type of connection required to provide a link to another device. During Auto-Negotiation, two devices automatically exchange information concerning their operating capabilities. The Auto-Negotiation feature targets the maximum capabilities between the two devices. For example, the 2H22-08R adjusts to 100 Mbps when the device on the other end of the connection can adjust between 10 Mbps or 100 Mbps. If the device on the other end of the connection can only operate at 10 Mbps, then the 2H22-08R adjusts to 10 Mbps operation.
When Auto-Negotiation is supported at both ends of a link, the two devices dynamically adjust to full or half duplex operation based on the maximum capability that can be reached between the two devices. If the device connected to the 2H22-08R cannot auto-negotiate, the 2H22-08R interface operates according to the capabilities of the other device.
2H22-08R SmartSwitch 2208 User’s Guide | Page 1-3 |
