IBM SG24-4817-00 manual This soft copy for use by IBM employees only

This soft copy for use by IBM employees only.

Figure 14. 8285 with ATM 12-Port 25 Mbps UTP Concentrator Modules as an Access

Switch

The third example shows how you can connect the ATM25 workgroup into the backbone network to access additional high-speed resources using only the standard ATM 155 Mbps uplink. In this capacity, the 8285 makes an excellent ATM floor switch, especially when used in conjunction with the IBM 8260 Nways Multiprotocol Switching Hub as the backbone or collapse-point switch.

By implementing a second backbone link (using either the ATM 2-Port 155 Mbps Flexible Media Module or the ATM 3-Port 155 Mbps LAN Concentration Module) connected to a different switch in the backbone, you can take advantage of the additional bandwidth during normal operations, and provide availability to your workgroup even if one of the collapse-point switches fails.

Chapter 4. IBM 8285 ATM Modules 41