Operation3-113150-A2-GB21-80 February 1998Saving Edit ChangesSave edit changes to the Active area when you wantthose changes to take effect immediately. Save editchanges to the Customer area when you want to overwritethe existing Customer configuration options and storethese changes for future use.NOTEIf you attempt to exit the Editfunction after making changeswithout performing a Save, theCSU prompts you with SaveOptions? Choose Yes or No.To save edit changes,1. From the Choose Funct screen (one level abovethe Edit screen, two levels below the top-levelmenu screen), select Save.F1Choose Funct:Edit SaveF2 F32. Choose whether you want to save to the Active,Customer 1, or Customer 2 area. Use the scrollkeys, if necessary.F1Save Edit to:Activ Cust1F2 F3Configuring the CSU for SNMPor Telnet AccessTo configure the CSU for SNMP or Telnet access,• Enable the SNMP agent or Telnet server within theDSU/CSU (see Appendix C, ConfigurationOptions).• Select and configure the port that provides the linkto the SNMP or Telnet system.• Set the Internet Protocol (IP) address and subnetmask needed to access the CSU (see Appendix F,IP Network Addressing Scenarios).• Select the link layer protocol (PPP or SLIP) for theport that provides the link to the SNMP or Telnetsystem.• For SNMP links, specify the two community names(and their access levels) that are allowed to accessthe device’s Management Information Base (MIB).• For SNMP links, configure the device to send trapsto the SNMP manager, if desired.• Specify the Telnet password or SNMP validationoptions, if desired (see Appendix C, ConfigurationOptions).Selecting the PortThe SNMP manager, Telnet device, or network device(e.g., a router) can be directly connected to thecommunications (COM) port. An external LAN Adaptercan be connected to either the COM port or the auxiliary(AUX) port to provide Ethernet or Token Ringconnectivity. Also, the CSU can be daisy chained togetherby connecting the COM port of one device to the AUXport of the other, providing SNMP or Telnet connectivity.Use the MODEM port when accessing the CSU through adial-up connection.The COM port can support either synchronous orasynchronous PPP, or asynchronous SLIP at data rates ofup to 38,400 bps. The AUX port can support data rates upto 38,400 bps. The MODEM port can support eithersynchronous or asynchronous PPP, or asynchronous SLIPat data rates of up to 2400 bps.