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atmifmp(8) System Manager's Manual 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 ar- guments must be specified. FLAGS This section is organized by the tasks you can perform with the atmifmp command. Each task subsection provides the atmifmp command syntax and the flags 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] 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 Identi- fier (VCI) ranges available to the IP switching module (VPI 0 is assumed). VCs used by the IP switching module are unidirec- tional. After the ips interface is attached, you must configure the in- terface using the ifconfig(8) command, specifying the source ad- dress of the host and destination address of the IP switch or another host associated with the point-to-point interface. Specifies the ips interface number to create. Specifies the ATM driver associated with the virtual interface. 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. Specifies the smallest VCI number that can be used for receiving IP switching traffic. The default value is the driver's minimum VCI value. Specifies the largest VCI number that can be used for receiving IP switching traffic. The default value is the driver's maximum VCI value. Specifies the smallest VCI number that can be used for transmitting IP switching traffic. The default value is the driver's minimum VCI value. Specifies the largest VCI number that can be used for transmitting IP switching traffic. The de- fault value is the driver's maximum VCI value. Disabling IP Switching Syntax: /usr/sbin/atmifmp detach ips=num 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. Specifies the ips interface. Displaying IP Switching Configuration Syntax: atmifmp showips [ips=num] Displays the state of all ips interfaces, un- less an interface is specified by the next argument. Information dis- played 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 configu- ration information. Specifies the ips interface. Displaying or Clearing IP Switching Statistics Syntax: /usr/sbin/atmifmp stats [ips=num] [clear] Displays the flow and IFMP statistics for all ips interfaces, unless an interface is specified by the next argument. Specifies the ips interface. Zeros the flow and IFMP statistics for all ips interfaces, unless an interface is speci- fied. Statistics are displayed after they are cleared. Displaying IP Switching Flow Information Syntax: /usr/sbin/atmifmp flows [ips=num] [long] 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. Specifies the ips interface. Displays additional information about each flow, such as the information encoded in the Flow ID. DESCRIPTION The atmifmp command enables and disables IP switching on a DIGITAL UNIX end system that has an attached ATMworks ATM adapter. The IP switching architecture is based on the Ipsilon Networks, Inc. reference model, and enables you to configure the DIGITAL 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 sys- tem, you cannot use that adapter to run ATM Forum protocols (UNI sig- naling, Classical IP, or Local Area Network Emulation (LANE)). Multiple adapters are required. RELATED INFORMATION Commands: atmconf(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 Version 1.0 delim off atmifmp(8)