Cabletron Systems CyberSWITCH CSX400 User Manual

Also see for CyberSWITCH HSIM-W6: Setup guide Configuration guide User guide Installation guide

Contents

WAN Configuration2-34Local Management User’s GuideunknownAddress: frame received on a virtual circuit which was not active oradministratively disabled.dlcmiProtoErr: unspecified error occurred when attempting to interpret linkmaintenance frame.dlcmiUnknownlE: link maintenance frame contained an Information Element type whichis not valid for the configured link maintenance protocol.dlcmiSequenceErr: link maintenance frame contained a sequence number other than theexpected value.dlcmiUnknownRpt: link maintenance frame contained a Report Type Information Elementwhose value was not valid for the configured link maintenance protocol.noErroSinceReset: no errors have been detected since the last cold start or warm start.• The number of times the interface has gone down due to faults• The value of sysUpTime when the interface last went down due to errors.Configuration: Call BackupThis section provides instructions for configuring the HSIM or CyberSWITCH to automaticallybackup a PPP dedicated/permanent connection or a Frame Relay PVC using a dial-up ISDN.These are the two primary uses. All connections configured as call backup are continuouslymonitored for a failed condition. Whenever a primary connection with call backup fails, thebackup call is automatically made using Dial-on-Demand (DoD). Once the failed connection isrestored the backup call may be automatically closed. DoD automatically brings up the backupSVC connection whenever the primary connection has failed and there is traffic to be forwardedacross the backup SVC.This example assumes the setup shown in Figure 2-15, using two CSX400s with primaryconnections using WPIM-T1s (WPIM-E1, WPIM-DDS, or WPIM-SY could also be used) andwith HSIM or CyberSWITCH backup modules installed in each CSX400. The NT-1 is needed ifthe connection to the Telco cloud has a U interface.