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This chapter explains the function and syntax of the ATM commands: abr through atm sonet stm-1. For more information about defaults and usage guidelines, see the corresponding chapter of the Cisco IOS Wide-Area Networking Command Reference, Release 12.1.
To select available bit rate (ABR) QoS and configure the output peak cell rate and output minimum guaranteed cell rate for an ATM permanent virtual circuit (PVC) or virtual circuit (VC) class, use the abr command in the appropriate command mode. To remove the ABR parameters, use the no form of this command.
abr output-pcr output-mcr
Syntax Description
output-pcr The output peak cell rate in kilobits per second. output-mcr The output minimum guaranteed cell rate in kilobits per second.
Syntax Description
This command has no arguments or keywords.
To configure the amount that the cell transmission rate increases or decreases in response to flow control information from the network or destination for available bit rate (ABR) virtual circuits (VCs), use the atm abr rate-factor interface configuration command. To return to the default, use the no form of this command.
atm abr rate-factor [rate-increase-factor] [rate-decrease-factor]
Syntax Description
rate-increase-factor (Optional) Factor by which to increase the data rate. The rate increase factor is specified in powers of 2 from 1 to 32768. rate-decrease-factor (Optional) Factor by which to decrease the data rate. The rate decrease factor is specified in powers of 2 from 1 to 32768.
To enable the router to engage in address registration and callback functions with the Interim Local Management Interface (ILMI), use the atm address-registration interface configuration command. To disable ILMI address registration functions, use the no form of this command.
atm address-registrationSyntax Description
This command has no arguments or keywords.
To identify an ATM Address Resolution Protocol (ARP) server for the IP network or set time-to-live (TTL) values for entries in the ATM ARP table, use the atm arp-server interface configuration command. To remove the definition of an ATM ARP server, use the no form of this command.
atm arp-server [self [time-out minutes] | [nsap nsap-address]]
Syntax Description
self (Optional) Specifies the current router as the ATM ARP server. time-out minutes (Optional) Number of minutes a destination entry listed in the ATM ARP server's ARP table will be kept before the server takes any action to verify or time out the entry. nsap nsap-address (Optional) Network service access point (NSAP) address of an ATM ARP server.
To cause the ATM interface to generate the transmit clock internally, use the atm clock internal interface configuration command. To restore the default value, use the no form of this command.
atm clock internalSyntax Description
This command has no arguments or keywords.
To enable scrambling of the ATM cell payload for the DS3 physical layer interface module (PLIM) on an ATM interface, use the atm ds3-scramble interface configuration command. To disable scrambling of the ATM cell payload for the DS3 PLIM, use the no form of this command.
atm ds3-scrambleSyntax Description
This command has no arguments or keywords.
To enable ATM E164 autoconversion, use the atm e164 auto-conversion interface configuration command. To disable autoconversion, use the no form of this command.
atm e164 auto-conversionSyntax Description
This command has no arguments or keywords.
To enable scrambling of the ATM cell payload for the E3 physical layer interface module (PLIM) on an ATM interface, use the atm e3-scramble interface configuration command. To disable scrambling of the ATM cell payload for the E3 PLIM, use the no form of this command.
atm e3-scrambleSyntax Description
This command has no arguments or keywords.
Syntax Description
esi End station ID field value in hexadecimal; 6 bytes long. .selector Selector field value in hexadecimal; 1 byte long.
To set the exception queue length, use the atm exception-queue interface configuration command. To restore the default value, use the no form of this command.
atm exception-queue number
Syntax Description
number Number of entries in the range of 8 to 256.
To specify DS3 line framing on an ATM interface, use the atm framing interface configuration command. To return to the default C-bit with Physical Layer Convergence Protocol (PLCP) framing, use the no form of this command.
atm framing [cbitadm | cbitplcp | m23adm | m23plcp]
Syntax Description
cbitadm (Optional) Specifies C-bit with ATM direct mapping (ADM). cbitplcp (Optional) Specifies C-bit with PLCP framing. m23adm (Optional) Specifies M23 ATM direct mapping. m23plcp (Optional) Specifies M23 with PLCP framing.
To specify E3 line framing, use the atm framing interface configuration command. To return to the default G.751 Physical Layer Convergence Protocol (PLCP) framing, use the no form of this command.
atm framing [g751adm | g832adm | g751plcp]
Syntax Description
g751adm (Optional) Specifies G.751 ATM Direct Mapping (ADM). g832adm (Optional) Specifies G.832 ATM Direct Mapping. g751plcp (Optional) Specifies G.751 PLCP encapsulation.
To enable Interim Local Management Interface (ILMI) keepalives, use the atm ilmi-keepalive interface configuration command. To disable ILMI keepalives, use the no form of this command.
atm ilmi-keepalive [seconds]
Syntax Description
seconds (Optional) Number of seconds between keepalives. Values less than 3 seconds are rounded up to 3 seconds, and there is no upper limit.
To enable ATM permanent virtual circuit (PVC) discovery, use the atm ilmi-pvc-discovery interface configuration command. To disable PVC Discovery, use the no form of this command.
atm-ilmi-pvc-discovery [subinterface]
Syntax Description
subinterface (Optional) When this keyword is used, the discovered PVCs are assigned to the ATM subinterface whose number matches the discovered PVC's VPI number. For example, a PVC with VPI 1 will be assigned to ATM subinterface 2/0.1.
To specify the cable length (line build-out) for the ATM interface, use the atm lbo interface configuration command. To return to the default, use the no form of this command.
atm lbo {long | short}
Syntax Description
long Specifies a cable length greater than 50 feet. short Specifies a cable length less than 50 feet.
To configure the number of transmit channels for the interface, use the atm max-channels interface configuration command. To return to the default, use the no form of this command.
atm max-channels number
Syntax Description
number Maximum number of transmit channels for the interface. The range is 64 to 2048 channels.
To set the ceiling value of the virtual circuit descriptor (VCD) on the ATM interface, use the atm maxvc interface configuration command. To restore the default value, use the no form of this command.
atm maxvc number
Syntax Description
number Maximum number of supported virtual circuits. Valid values are 256, 512, 1024, or 2048.
To limit the number of message identifier (MID) numbers allowed on each virtual circuit, use the atm mid-per-vc interface configuration command.
atm mid-per-vc maximum
Syntax Description
maximum Number of MIDs allowed per virtual circuit on this interface. The values allowed are 16, 32, 64, 128, 256, 512, and 1024.
To assign a Switched Multimegabit Data Service (SMDS) E.164 multicast address to the ATM subinterface that supports ATM adaptation layer 3/4 (AAL3/4) and SMDS encapsulation, use the atm multicast interface configuration command.
atm multicast address
Syntax Description
address Multicast E.164 address assigned to the subinterface.
To specify how often new destinations can be added to multipoint calls to an ATM switch in the network, use the atm multipoint-interval interface configuration command. To return to the default interval, use the no form of this command.
atm multipoint-interval interval
Syntax Description
interval Interval length in seconds, in the range 0 to 4294967.
To enable point-to-multipoint signalling to the ATM switch, use the atm multipoint-signalling interface configuration command. To disable point-to-multipoint signalling to the ATM switch, use the no form of this command.
atm multipoint-signallingSyntax Description
This command has no arguments or keywords.
To set the network service access point (NSAP) address for an ATM interface using switched virtual circuit (SVC) mode, use the atm nsap-address interface configuration command. To remove any configured address for the interface, use the no form of this command.
atm nsap-address nsap-address
Syntax Description
nsap-address The 40-digit hexadecimal NSAP address of this interface (the source address).
To drop all current and future Operation, Administration, and Maintenance (OAM) cells received on an ATM interface, use the atm oam flush interface configuration command. To receive OAM cells on an ATM interface, use the no form of this command.
atm oam flushSyntax Description
This command has no arguments or keywords.
To manage bandwidth for service categories other than constant bit rate (CBR), use the atm overscribe global configuration command on a per-ATM-interface basis. To disable bandwidth management, use the no form of the command.
atm oversubscribeSyntax Description
There are no optional keywords for this command.
To create a permanent virtual path (PVP) used to multiplex (or bundle) one or more virtual circuits (VCs) (especially circuit emulation service (CES) and data VCs), use the atm pvp interface configuration command. To remove a PVP, use the no form of this command.
atm pvp vpi [peak-rate]
Syntax Description
vpi ATM network virtual path identifier (VPI) of the VC to multiplex on the permanent virtual path. The range is 0 to 255. The VPI is an 8-bit field in the header of the ATM cell. The VPI value is unique only on a single link, not throughout the ATM network because it has local significance only. The VPI value must match that of the switch. The number specified for the vpi must not already exist. If the number specified for the vpi is already being used by an existing VC, this command is rejected. peak-rate (Optional) Maximum rate in kbps at which the PVP can transmit data. The range is 84 kbps to line rate. The default is the line rate.
To create a permanent rate queue or specify a rate queue tolerance, use the atm rate-queue interface configuration command. To remove a rate queue or rate queue tolerance, use the no form of this command.
atm rate-queue {queue-number speed | tolerance svc [pvc] tolerance-value [strict]}
Syntax Description
To define the ATM Interface Processor (AIP) raw-queue size, use the atm rawq-size interface configuration command. To restore the default value, use the no form of this command.
atm rawq-size number
Syntax Description
number Maximum number of cells in the raw queue simultaneously, in the range 8 to 256.
To set the maximum number of receive buffers for simultaneous packet reassembly, use the atm rxbuff interface configuration command. To restore the default value, use the no form of this command.
atm rxbuff number
Syntax Description
number Maximum number of packet reassemblies that the AIP can perform simultaneously, from 0 to 512.
To disconnect a switched virtual circuit (SVC), use the atmsig close atm EXEC command.
AIP on Cisco 7500 series; ATM, ATM-CES, enhanced ATM port adapter on Cisco 7200 series; 1-port ATM-25 network module on Cisco 2600 and 3600 series
atmsig close atm slot/0 vcd
ATM and enhanced ATM port adapter on Cisco 7500 series
atmsig close atm slot/port-adapter/0 vcd
NPM on Cisco 4500 and Cisco 4700
atmsig close atm number vcd
Syntax Description
slot ATM slot number. Use this format for the following platform configurations: /0 ATM port number. Because the AIP and all ATM port adapters have a single ATM interface, the port number is always 0. vcd Virtual circuit descriptor of the signalling SVC to close. slot/port-adapter ATM slot number and port adapter number. Use this format for the ATM port adapter or ATM-CES port adapter on Cisco 7500 series routers. number ATM network processor module number for the NPM on Cisco 4500 and Cisco 4700 routers.
To specify that a switched virtual circuit (SVC) should be established on an ATM interface only if shaping can be done per the signaled traffic parameters, use the atm sig-traffic-shaping strict interface configuration command. To disable strict traffic shaping, use the no form of this command.
atm sig-traffic-shaping strictSyntax Description
This command has no arguments or keywords.
To assign a unicast E.164 address to the ATM subinterface that supports ATM adaptation layer 3/4 (AAL3/4) and Switched Multimegabit Data Service (SMDS) encapsulation, use the atm smds-address interface configuration command.
atm smds-address address
Syntax Description
address Unicast E.164 address assigned to the subinterface.
To set the mode of operation and thus control type of ATM cell used for cell-rate decoupling on the SONET physical layer interface module (PLIM), use the atm sonet stm-1 interface configuration command. To restore the default Synchronous Transport Signal level 3, concatenated (STS-3c) operation, use the no form of this command.
atm sonet stm-1Syntax Description
This command has no arguments or keywords.
Posted: Wed Jul 26 17:15:30 PDT 2000
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