unixdev.net


Switch to SpeakEasy.net DSL

The Modular Manual Browser

Home Page
Manual: (OSF1-V5.1-alpha)
Page:
Section:
Apropos / Subsearch:
optional field



atmifmp(8)							   atmifmp(8)



NAME

  atmifmp - Configures the ATM subsystem for switching IP traffic only

SYNOPSIS

  /usr/sbin/atmifmp command arguments

  Arguments can	appear in any order after the command.	All required argu-
  ments	must be	specified.

OPTIONS

  This section is organized by the tasks you can perform with the atmifmp
  command.  Each task subsection provides the atmifmp command syntax and the
  options to use to complete the tasks.

  Enabling IP Switching


  Syntax:

  /usr/sbin/atmifmp attach ips=num driver=name [snapvci=vci] [rxmin=vci]
  [rxmax=vci] [txmin=vci] [txmax=vci]

  attach
      Creates a	point-to-point,	multicast-capable virtual interface on a
      driver as	specified in the next two arguments. If	the virtual interface
      already exists but is not	currently attached (because it was previously
      attached and detached), the command creates an association between the
      virtual interface	and the	specified driver.

      The attach command also configures the Virtual Circuit Identifier	(VCI)
      ranges available to the IP switching module (VPI 0 is assumed).  VCs
      used by the IP switching module are unidirectional.

      After the	ips interface is attached, you must configure the interface
      using the	ifconfig(8) command, specifying	the source address of the
      host and destination address of the IP switch or another host associ-
      ated with	the point-to-point interface.

  ips=num
      Specifies	the ips	interface number to create.

  driver=name
      Specifies	the ATM	driver associated with the virtual interface.

  snapvci=vci
      Specifies	the VCI	number that Ipsilon Flow Management Protocol (IFMP)
      uses as the default SNAP VCI. The	default	VCI is 15. This	number must
      match the	VCI number used	by IFMP	on the destination host	or switch
      associated with the point-to-point interface.

  rxmin=vci
      Specifies	the smallest VCI number	that can be used for receiving IP
      switching	traffic. The default value is the driver's minimum VCI value.

  rxmax=vci
      Specifies	the largest VCI	number that can	be used	for receiving IP
      switching	traffic. The default value is the driver's maximum VCI value.

  txmin=vci
      Specifies	the smallest VCI number	that can be used for transmitting IP
      switching	traffic. The default value is the driver's minimum VCI value.

  txmax=vci
      Specifies	the largest VCI	number that can	be used	for transmitting IP
      switching	traffic. The default value is the driver's maximum VCI value.

  Disabling IP Switching


  Syntax:

  /usr/sbin/atmifmp detach ips=num

  detach
      Disassociates the	virtual	interface, ipsnum, from	the driver to which
      it was previously	attached. Prior	to detaching the interface, you	must
      delete the ips interface's address and bring down	the the	ips interface
      using the	ifconfig(8) command.

  ips=num
      Specifies	the ips	interface.

  Displaying IP	Switching Configuration


  Syntax:

  atmifmp showips [ips=num]

  showips
      Displays the state of all	ips interfaces,	unless an interface is speci-
      fied by the next argument. Information displayed includes	the interface
      attachment state,	the driver to which the	interface is attached, the
      default SNAP VC, the interface and driver
      receive/transmit/minimum/maximum VC ranges, and IFMP and Flow confi-
      guration information.

  ips=num
      Specifies	the ips	interface.

  Displaying or	Clearing IP Switching Statistics


  Syntax:

  /usr/sbin/atmifmp stats [ips=num] [clear]

  stats
      Displays the flow	and IFMP statistics for	all ips	interfaces, unless an
      interface	is specified by	the next argument.

  ips=num
      Specifies	the ips	interface.

  clear
      Zeros the	flow and IFMP statistics for all ips interfaces, unless	an
      interface	is specified. Statistics are displayed after they are
      cleared.





  Displaying IP	Switching Flow Information


  Syntax:

  /usr/sbin/atmifmp flows [ips=num] [long]

  flows
      Displays flows created by	the IP switching module	on all interfaces,
      unless an	interface is specified by the next argument. Information
      displayed	for each flow includes the Flow	ID, the	transmit or receive
      VC associated with the Flow, the Flow Type, the number of	packets	sent
      or received, and VC aging	information.

  ips=num
      Specifies	the ips	interface.

  long
      Displays additional information about each flow, such as the informa-
      tion encoded in the Flow ID.

DESCRIPTION

  The atmifmp command enables and disables IP switching	on a Tru64 UNIX	end
  system that has an attached ATMworks ATM adapter.  The IP switching archi-
  tecture is based on the Ipsilon Networks, Inc. reference model, and enables
  you to configure the Tru64 UNIX ATM subsystem	to support only	IP traffic
  over an ATM network. The IFMP	protocol associates an ATM virtual circuit
  with an IP data flow.

RESTRICTIONS

  If an	ips interface is attached to a specific	ATM adapter on your system,
  you cannot use that adapter to run ATM Forum protocols (UNI signaling,
  Classical IP,	or Local Area Network Emulation	(LANE)). Multiple adapters
  are required.

SEE ALSO

  Commands: atmconfig(8)

  Files: atm.conf(4)

  RFC 1953, Ipsilon Flow Management Protocol Specification for IPv4 V 1.0

  RFC 1954, Transmission of Flow Labeled IPv4 on ATM Data Links, Ipsilon Ver-
  sion 1.0