40Field DescriptionProtocol: (s) - spoofingIf the network layer protocol state of an interface is shownas UP, but its link is an on-demand link or not present at all,its protocol attribute includes the spoofing flag (an s inparentheses).Interface Abbreviated interface name.LinkPhysical link state of the interface:• UP—The link is up.• ADM—The link has been administratively shut down. Torecover its physical state, perform the undo shutdowncommand.Protocol Protocol connection state of the interface, which can beUP, DOWN, or UP(s).Main IP The main IP address of the interface.Description Description of the interface.CauseThe cause of a DOWN physical link. If the port has beenshut down with the shutdown command, this field displaysAdministratively. To restore the physical state of theinterface, use the undo shutdown command.display ppp mpSyntaxdisplay ppp mp [ interface mp-group mp-number ] [ | { begin | exclude | include } regular-expression ]ViewAny viewDefault level1: Monitor levelParametersinterface mp-group mp-number: Displays information and statistics about the specified MP-groupinterface.|: Filters command output by specifying a regular expression. For more information about regularexpressions, see Fundamentals Configuration Guide.begin: Displays the first line that matches the specified regular expression and all lines that follow.exclude: Displays all lines that do not match the specified regular expression.include: Displays all lines that match the specified regular expression.regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.DescriptionUse the display ppp mp command to display information and statistics about a specific or all MP-groupinterfaces.Related commands: link-protocol ppp and ppp mp.