370Usage guidelinesA bundle link maintains link status by periodically sending hello messagesto its peer end. If thebundle link sends a hello message but does not receive a hello acknowledgement, it will resend thehello message. If the bundle link still receives no acknowledgements after the maximum number ofretries is reached, the system determines that the line protocol on the bundle link is down.Before configuring this command, make sure you have used thelink-protocol mfr command toenable MFR encapsulation on the Frame Relay interface.Examples# Set the wait time to 6 seconds for interface Serial 2/1/0. system-view[Sysname] interface serial 2/1/0[Sysname-Serial2/1/0] link-protocol mfr[Sysname-Serial2/1/0] mfr timer ack 6Related commandslink-protocol mfrmfr timer hellomfr retrymfr timer helloUse mfr timer hello to set the interval at which a bundle link sends hello messages.Use undo mfr timer hello to restore the default.Syntaxmfr timer hello secondsundo mfr timer helloDefaultA bundle link sends hello messages at the interval of 10 seconds.ViewsFrame Relay interface viewPredefined user rolesnetwork-adminParametersseconds: Specifies the interval in the range 1 to 180 seconds.Usage guidelinesBefore configuring this command, make sure you have used the link-protocol fr mfr command toenable MFR encapsulation on the Frame Relay interface.Examples# Configure interface Serial 2/1/0 to send a hello message every 15 seconds. system-view[Sysname] interface serial 2/1/0[Sysname-Serial2/1/0] link-protocol mfr[Sysname-Serial2/1/0] mfr timer hello 15
