Cabletron Systems CyberSWITCH CSX150 User Manual

Also see for CyberSWITCH CSX150: User guide Quick start guide

Contents

Small Office Remote Access Switch 29T HE C YBERSWITCHInteroperability Overview• Protocol DiscriminationIt is possible for multiple types of remote devices to use the same line. The system candetermine the device type and the protocol encapsulation used by remote devices.• RS232 Port: Dual UsageIf your installation requires you to process PPP-Async data, this feature allows you to use theRS232 port for either console access or a serial data connection. This dual usage is possiblethrough the CyberSWITCH’s support of Autosense mode and Terminal mode:• Autosense mode determines whether you are trying to connect using a VT emulation or PPP-Async, and connects you appropriately. (VT emulation requires you to perform four car-riage returns to receive a login prompt.)• Terminal mode assumes that you only want to connect using VT emulation. A login promptis displayed as soon as the connection is made.• SecuritySecurity is a key issue for all central site network managers and is a priority with theCyberSWITCHs. The modules provide high level features that help prevent unauthorized orinadvertent access to critical data and resources. The modules support extensive security levelsincluding:• PPP PAP and CHAP• User name and password• Calling Line ID (CLID)• Ethernet Address• User Authentication• Device Authentication• SecureFast Virtual Remote Access (SFVRA)• TACACS Client with Radius Server• RADIUS• Security Dynamic’s ACE/SecurID• Simultaneous ConnectionsThe system supports simultaneous connections to multiple locations. These locations canconnect by using different channels on the same line, or they can connect on different lines. Thispooling of lines among many potential locations is more cost effective than alternative point-to-point lines.INTEROPERABILITY O VERVIEW“Interoperability” is the ability to operate and exchange information in a heterogeneous network.The CyberSWITCH supports interoperability with many different remote devices over ISDN.I NTEROPERABILITY PROTOCOLSIn order to communicate with various remote devices over ISDN, the CyberSWITCH must identifythe device type and the protocol it is using.The CyberSWITCH supports the following line protocols:• HDLC Ethernet Frames• Ordered Protocol for Ethernet Frames• Point-to-Point Protocol (PPP) Encapsulation for IP Datagrams