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Table of Contents

Interface Commands: access-list Through cut-through

Interface Commands: access-list Through cut-through

This chapter explains the function and syntax of the interface commands access-list through cut-through. For more information about defaults and guidelines, see the corresponding chapter of the Cisco IOS Interface Command Reference, Release 12.1.

access-list (standard)

To establish MAC address access lists, use the access-list global configuration command. To remove a single access list entry, use the no form of this command.

access-list access-list-number {permit | deny} address mask

no access-list access-list-number

Syntax Description

access-list-number

Integer from 700 to 799 that you select for the list.

permit

Permits the frame.

deny

Denies the frame.

address mask

48-bit MAC addresses written in dotted triplet form. The ones bits in the mask argument are the bits to be ignored in the address value.

access-list (type-code)

To build type-code access lists, use the access-list global configuration command. To remove a single access list entry, use the no form of this command.

access-list access-list-number {permit | deny} type-code wild-mask

no access-list access-list-number

Syntax Description

access-list-number

User-selectable number between 200 and 299 that identifies the list.

permit

Permits the frame.

deny

Denies the frame.

type-code

16-bit hexadecimal number written with a leading "0x"; for example, 0x6000. You can specify either an Ethernet type code for Ethernet-encapsulated packets, or a DSAP/SSAP pair for 802.3 or 802.5-encapsulated packets.

wild-mask

16-bit hexadecimal number with ones bits that correspond to bits in the type-code argument that should be ignored when making a comparison. (A mask for a DSAP/SSAP pair should always be at least 0x0101 because these two bits are used for purposes other than identifying the SAP codes.)

aps authenticate

To enable authentication and specify the string that must be present to accept any packet on the out-of-band (OOB) communications channel on a packet-over-SONET (POS) interface, use the aps authenticate interface configuration command. To disable authentication, use the no form of this command.

aps authenticate string

no aps authenticate

Syntax Description

string

Text that must be present to accept the packet on a protected or working interface. Up to eight alphanumeric characters are accepted.

aps force

To manually switch the specified circuit to a protect interface, unless a request of equal or higher priority is in effect, use the aps force interface configuration command. To cancel the switch, use the no form of this command.

aps force circuit-number

no aps force circuit-number

Syntax Description

circuit-number

Number of the circuit to switch to the protect interface.

aps group

To allow more than one protect and working interface to be supported on a router, use the aps group interface configuration command. To remove a group, use the no form of this command.

aps group group-number

no aps group group-number

Syntax Description

group-number

Number of the group. The default group-number is 0.

aps lockout

To prevent a working interface from switching to a protect interface, use the aps lockout interface configuration command. To remove the lockout, use the no form of this command.

aps lockout circuit-number

no aps lockout circuit-number

Syntax Description

circuit-number

Number of the circuit to lock out.

aps manual

To manually switch a circuit to a protect interface, use the aps manual interface configuration command. To cancel the switch, use the no form of this command.

aps manual circuit-number

no aps manual circuit-number

Syntax Description

circuit-number

Number of the circuit to switch to a protect interface.

aps protect

To enable a POS interface as a protect interface, use the aps protect interface configuration command. To remove the POS interface as a protect interface, use the no form of this command.

aps protect circuit-number ip-address

no aps protect circuit-number ip-address

Syntax Description

circuit-number

Number of the circuit to enable as a protect interface.

ip-address

IP address of the router that has the working POS interface.

aps revert

To enable automatic switchover from the protect interface to the working interface after the working interface becomes available, use the asp revert interface configuration command. To disable automatic switchover, use the no form of this command.

aps revert minutes

no aps revert

Syntax Description

minutes

Number of minutes until the circuit is switched back to the working interface after the working interface is available.

aps timers

To change the time between hello packets and the time before the protect interface process declares a working interface router to be down, use the aps timers interface configuration command. To return to the default timers, use the no form of this command.

aps timers seconds1 seconds2

no aps timers

Syntax Description

seconds1

Number of seconds to wait before sending a hello packet (hello timer).

seconds2

Number of seconds to wait to receive a response from a hello packet before the interface is declared down (hold timer).

aps unidirectional

To configure a protect interface for unidirectional mode, use the aps unidirectional interface configuration command. To return to the default, bidirectional mode, use the no form of this command.

aps unidirectional

no aps unidirectional

Syntax Description

This command has no arguments or keywords.

aps working

To configure a POS interface as a working interface, use the aps working interface configuration command. To remove the protect from the POS interface, use the no form of this command.

aps working circuit-number

no aps working circuit-number

Syntax Description

circuit-number

Circuit number associated with this working interface.

atm sonet

To set the mode of operation and thus control the type of the ATM cell used for cell-rate decoupling on the SONET PLIM, use the atm sonet interface configuration command. To restore the default Synchronous Transport Signal level 12, concatenated (STS-12c) operation, use the no form of this command.

atm sonet [stm-4]

no atm sonet [stm-4]

Syntax Description

stm-4

(Optional) Synchronous Digital Hierarchy/Synchronous Transport Signal level 4 (SDH/STM-4) operation (ITU-T specification).

auto-polarity

To enable automatic receiver polarity reversal on a hub port connected to an Ethernet interface of a Cisco 2505 or Cisco 2507 router, use the auto-polarity hub configuration command. To disable this feature, use the no form of this command.

auto-polarity

no auto-polarity

Syntax Description

This command has no arguments or keywords.

bandwidth (interface)

To set a bandwidth value for an interface, use the bandwidth interface configuration command. To restore the default values, use the no form of this command.

bandwidth kilobits

no bandwidth

Syntax Description

kilobits

Intended bandwidth in kilobits per second. For a full bandwidth DS3, enter the value 44736.

bert abort

To abort a bit-error rate testing session, use the bert abort privileged EXEC command.

bert abort

Syntax Description

This command has no arguments or keywords.

bert controller

To start a bit-error rate test for a particular port, use the bert controller privileged EXEC command.

bert controller [type-controller] {[last-controller] | profile [number | default]}

Syntax Description

type-controller

(Optional) Use either T1 or E1 depending on the type of facility.

last-controller

(Optional) Last controller number. The valid range is 0 to 7.

profile

Sets the profile numbers for the bit-error rate test. The default is 0.

number

(Optional) Numbers of the test profiles to use. The valid range is 0 to 15.

default

(Optional) Executes the default bit-error rate test (0).

bert profile

To set up various bit-error rate testing profiles, use the bert profile privileged EXEC command. To disable the particular BERT profile indicated by profile number, use the no form of this command.

bert profile number pattern pattern threshold threshold error-injection err_inj duration time

no bert profile number pattern pattern threshold threshold error-injection err_inj duration time

Syntax Description

number

BERT profile number. The valid range is 1 to 15. This is the number assigned to a particular set of parameters. If no such profile of the same number exists in the system, a new profile is created with that number; otherwise, an existing set of parameters with that profile number is overwritten by the new profile.

pattern

Pattern BERT will generate on the line.

pattern

0s---repetitive pattern, all zeros
1_in_16---n repetitive pattern, 1 in 16
1s---n repetitive pattern, all ones
211-O.152---n pseudo-random pattern, 211 -1 O.152
215-O.15---n pseudo-random pattern, 215 -1 O.151
220-O.151QRSS---n pseudo-random pattern, 220 -1 O.151 QRSS
     (This is the default)
220-O.153---n pseudo-random pattern, 220 -1 O.153
3_in_24---n repetitive pattern, 3 in 24

threshold

Test failure (error) threshold that determines if the BERT on this line passed.

threshold

10^-2---Bit-error rate of 10-2
10^-3---Bit-error rate of 10-3
10^-4---Bit-error rate of 10-4
10^-5---Bit-error rate of 10-5
10^-6---Bit-error rate of 10-6 (This is the default)
10^-7---Bit-error rate of 10-7
10^-8---Bit-error rate of 10-8

error-injection

Error injection rate for bit errors injected into the BERT pattern generated by the chip. The default is none.

err_inj

10^-1---Error injection of 10-1
10^-2---Error injection of 10-2
10^-3---Error injection of 10-3
10^-4---Error injection of 10-4
10^-5---Error injection of 10-5
10^-6---Error injection of 10-6
10^-7---Error injection of 10-7
none---No error injection in the data pattern.

duration

Duration, in minutes, for which BERT is to be executed.

time

Duration of BERT in minutes. The valid range is 1 to 1440. The default is 10.

cablelength

To specify the distance of the cable from the routers to the network equipment, use the cablelength controller configuration command. To restore the default cable length, use the no form of this command.

cablelength feet

no cablelength

Syntax Description

feet

Number of feet in the range of 0 to 450. The default values are:

  • 224 feet for Channelized T3 Interface Processor (CT3IP)

  • 49 feet for PA-T3 and PA-2T3 port adapters

cablelength long

To increase the pulse of a signal at the receiver and decrease the pulse from the transmitter using pulse equalization and line build-out for a T1 cable, use the cablelength long controller configuration or interface configuration command. To return the pulse equalization and line build-out values to their default settings, use the no form of this command.

cablelength long dbgain-value dbloss-value

no cablelength long

Syntax Description

dbgain-value

Number of decibels by which the receiver signal is increased. Use one of the following values:

  • gain26

  • gain36

The default is 26db.

dbloss-value

Number of decibels by which the transmit signal is decreased. Use one of the following values:

  • 0db

  • -7.5db

  • -15db

  • -22.5db

The default is 0db.

cablelength short

To set a cable length 655 feet or shorter for a DS1 link on the Cisco MC3810 or Cisco 2600 and 3600 series routers, use the cablelength short controller configuration or interface configuration command. This command is supported on T1 controllers only. To delete the cablelength short value, use the no form of this command. To set cable lengths longer than 655 feet, use the cablelength long command.

cablelength short length

no cablelength short

Syntax Description

length

Specifies a cable length. Use one of the following values to specify this value:

  • 133---Specifies a cable length from 0 to 133 feet.

  • 266---Specifies a cable length from 134 to 266 feet.

  • 399---Specifies a cable length from 267 to 399 feet.

  • 533---Specifies a cable length from 400 to 533 feet.

  • 655---Specifies a cable length from 534 to 655 feet.

carrier-delay

To set the carrier delay on a serial interface, use the carrier-delay interface configuration command. To return to the default carrier delay value, use the no form of this command.

carrier-delay [seconds]

no carrier-delay [seconds]

Syntax Description

seconds

Time, in seconds, to wait for the system to change states. Enter an integer in the range 0 to 60. The default is 2 seconds.

channel-group (Fast EtherChannel)

To assign a Fast Ethernet interface to a Fast EtherChannel group, use the channel-group interface configuration command. To remove a Fast Ethernet interface from a Fast EtherChannel group, use the no form of this command.

channel-group channel-number

no channel-group channel-number

Syntax Description

channel-number

Port-channel number previously assigned to the port-channel interface when using the interface port-channel global configuration command. The range is 1 to 4.

clear aim

To clear data compression of the Advanced Interface Module (AIM) daughtercard registers and reset the hardware, use the clear aim interface configuration command.

clear aim element-number

Syntax Description

element-number

Enables compression for this AIM slot. AIM slots begin with 0.

clear controller lex

To reboot the LAN Extender chassis and restart its operating software, use the clear controller lex privileged EXEC command.

clear controller lex number [prom]

Cisco 7500 Series

clear controller lex slot/port [prom]

Cisco 7200 Series and 7500 Series with a Packet over SONET Interface Processor

clear controller lex [type] slot/port

Cisco 7500 Series with Ports on VIP Cards

clear controller lex [type] slot/port-adapter/port

Syntax Description

number

Number of the LAN Extender interface corresponding to the LAN Extender to be rebooted.

prom

(Optional) Forces a reload of the PROM image, regardless of any Flash image.

slot

Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.

port

Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.

type

(Optional) Specifies the interface type.

port-adapter

Number of the port-adapter being configured. Refer to the appropriate hardware manual for information about port adapter compatibility.

clear counters

To clear the interface counters, use the clear counters EXEC command.

clear counters [type number]

Cisco 4000 Series or Cisco 7500 Series with a LAN Extender Interface

clear counters [type slot/port] [ethernet | serial]

Cisco 7200 Series and 7500 Series with a Packet over SONET Interface Processor

clear counters [type] slot/port

Cisco 7500 Series with Ports on VIP Cards

clear counters [type] slot/port-adapter/port

Syntax Description

type

(Optional) Specifies the interface type.

number

(Optional) Specifies the interface counter displayed with the show interfaces command.

ethernet

(Optional) If the type is lex, you can clear the interface counters on the Ethernet interface.

serial

(Optional) If the type is lex, you can clear the interface counters on the serial interface.

slot

Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.

port

Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.

port-adapter

Number of the port-adapter being configured. Refer to the appropriate hardware manual for information about port adapter compatibility.

clear hub

To reset and reinitialize the hub hardware connected to an interface of a Cisco 2505 or Cisco 2507 router, use the clear hub EXEC command.

clear hub ethernet number

Syntax Description

ethernet

Indicates the hub in front of an Ethernet interface.

number

Hub number to clear, starting with 0. Because there is only one hub, this number is 0.

clear hub counters

To set to zero the hub counters on an interface of a Cisco 2505 or Cisco 2507 router, use the clear hub counters EXEC command.

clear hub counters [ether number [port [end-port]]]

Syntax Description n

ether

(Optional) Indicates the hub in front of an Ethernet interface.

number

(Optional) Hub number for which to clear counters. Since there is currently only one hub, this number is 0. If you specify the keyword ether, you must specify the number.

port

(Optional) Port number on the hub. On the Cisco 2505 router, port numbers range from 1 to 8. On the Cisco 2507 router, port numbers range from 1 to 16. If a second port number follows, then this port number indicates the beginning of a port range. If you do not specify a port number, counters for all ports are cleared.

end-port

(Optional) Ending port number of a range.

clear interface

To reset the hardware logic on an interface, use the clear interface EXEC command.

clear interface type number [name-tag]

Cisco 7200 Series and Cisco 7500 Series with a Packet OC-3 Interface Processor

clear interface type slot/port

Cisco 7500 Series with Ports on VIP Cards

clear interface type slot/port-adapter/port

Cisco 7500 Series

clear interface type slot/port [:channel-group]

Cisco 7500 Series with a CT3IP

clear interface type slot/port-adapter/port [:t1-channel]

Syntax Description

type

Specifies the interface type.

number

Specifies the port, connector, or interface card number.

name-tag

(Optional) Specifies the logic name to identify the server configuration so that multiple entries of server configuration can be entered.

This optional argument is for use with the RLM feature.

slot

Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.

port

Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.

port-adapter

Number of the port-adapter being configured. Refer to the appropriate hardware manual for information about port adapter compatibility.

:channel-group

(Optional) On Cisco 7500 series routers supporting channelized T1, specifies the channel from 0 to 23. This number is preceded by a colon.

:t1-channel

(Optional) For the CT3IP, the T1 channel is a number between 1 and 28.

T1 channels on the CT3IP are numbered 1 to 28 rather than the more traditional zero-based scheme (0 to 27) used with other Cisco products. This numbering scheme ensures consistency with telco numbering schemes for T1 channels within channelized T3 equipment.

clear interface fastethernet

To reset the controller for a specified Fast Ethernet interface, use the clear interface fastethernet privileged EXEC command.

Cisco 4500 and 4700 series

clear interface fastethernet number

Cisco 7200 and 7500 series

clear interface fastethernet slot/port

Cisco 7500 series

clear interface fastethernet slot/port-adapter/port

Syntax Description

number

Port, connector, or interface card number. On a Cisco 4500 or Cisco 4700 router, specifies the network processor module (NPM) number. The numbers are assigned at the factory at the time of installation or when added to a system.

slot

Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.

port

Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.

port-adapter

Number of the port-adapter being configured. Refer to the appropriate hardware manual for information about port adapter compatibility.

clear interface serial

To reset the statistical information specific to a serial interface, use the clear interface serial EXEC command.

clear interface serial dial-shelf/slot/t3-port:t1-num:chan-group

Syntax Description

dial-shelf

Dial shelf chassis in the Cisco AS5800 access server containing the CT3 interface card.

slot

Location of the CT3 interface card in the dial shelf chassis.

t3-port

T3 port number. The only valid value is 0.

:t1-num

T1 timeslot in the T3 line. The value can be from 1 to 28.

:chan-group

Channel group identifier.

clear service-module serial

To reset an integrated CSU/DSU, use the clear service-module serial privileged EXEC configuration command.

clear service-module serial number

Syntax Description

number

Number of the serial interface.

clock rate

To configure the clock rate for the hardware connections on serial interfaces such as network interface modules (NIMs) and interface processors to an acceptable bit rate, use the clock rate interface configuration command. To remove the clock rate if you change the interface from a DCE to a DTE device, use the no form of this command. Using the no form of this command on a DCE interface sets the clock rate to the hardware-dependent default value.

clock rate bps

no clock rate

Syntax Description

bps

Desired clock rate in bits per second: 1200, 2400, 4800, 9600, 19200, 38400, 56000, 64000, 72000, 125000, 148000, 250000, 500000, 800000, 1000000, 1300000, 2000000, 4000000, or 8000000.

For the synchronous serial port adapters (PA-8T-V35, PA-8T-X21, PA-8T-232, and PA-4T+), a nonstandard clock rate can be used. You can enter any value from 300 to 8000000 bps. The clock rate you enter is rounded (adjusted), if necessary, to the nearest value your hardware can support except for the following standard rates: 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 56000, 64000, 128000, or 2015232.

The default is no clock rate configured.

clock source

To configure the clock source of a DS1 link, enter the clock source interface configuration, controller configuration, or ATM interface configuration command. To restore the default line setting, use the no form of this command.

clock source {line | internal | loop-timed}

no clock source

Syntax Description

line

Specifies that the T1/E1 link uses the recovered clock from the line. This is the default.

internal

Specifies that the T1/E1 link uses the internal clock from the interface.

loop-timed

Specifies that the T1/E1 interface takes the clock from the Rx (line) and uses it for Tx.

clock source (AS5200)

To select the clock source for the time-division multiplexing (TDM) bus in a Cisco AS5200 access server, use the clock source interface configuration command. To restore the clock source to its default setting, use the no form of this command.

clock source {line {primary | secondary} | internal}

no clock source line {primary | secondary}

Syntax Description

line

Clock source on the active line.

primary

Primary TDM clock source.

secondary

Secondary TDM clock source.

internal

Selects the free running clock (also known as internal clock) as the clock source.

clock source (controller)

To set the T1-line clock-source for the MIP in the Cisco 7200 series and Cisco 7500 series or for the NPM in the Cisco 4000 series or a T3 interface or a PA-T3 serial port adapter, use the clock source controller configuration command. To restore the clock source to its default setting, use the no form of this command.

clock source {line {primary | secondary} | internal}

no clock source

Syntax Description

line

Specifies that the interface will clock its transmitted data from a clock recovered from the line's receive data stream. This is the default.

primary

Specifies the source of primary line clocking. The default primary TDM clock source is from the T0 controller.

secondary

Specifies the source of secondary line clocking. The default secondary TDM clock source is from the T1 controller.

internal

Specifies that the interface will clock its transmitted data from its internal clock.

clock source (CT3IP)

To specify where the clock source is obtained for use by the Channelized T3 Interface Processor (CT3IP) in Cisco 7500 series routers, use the clock source controller configuration command. To restore the default clock source, use the no form of this command.

clock source {internal | line | loop-timed}

no clock source

Syntax Description

internal

Specifies that the internal clock source is used. This is the default.

line

Specifies that the network clock source is used.

loop-timed

Decouples the controller clock from the system-wide clock set with the network-clock-select command. The loop-timed clock enables the DVM to connect to a PBX and to connect the MFT to a central office when both the PBX and the central office function as DCE clock sources. This situation assumes that the PBX also takes the clocking from the central office thereby synchronizing the clocks on the DVM and the MFT.

clock source (interface)

To control the clock used by a G.703-E1 interface, an E1-G.703/G.704 serial port adapter, or a PA-E3 serial port adapter will use to clock its transmitted data from, use the clock source interface configuration command. To restore the default clock source, use the no form of this command.

Cisco 4000, 7000, 7200, and 7500 Series

clock source {line | internal}

no clock source

Cisco AS5200 and AS5300 Access Servers

clock source {line {primary | secondary} | internal}

no clock source line {primary | secondary}

Syntax Description

line

Specifies that the interface will clock its transmitted data from a clock recovered from the line's receive data stream. This is the default.

internal

Specifies that the interface will clock its transmitted data from its internal clock.

primary

Primary TDM clock source.

secondary

Secondary TDM clock source.

clock source (MC3810)

To specify the clock source of a DS1 link on the Cisco MC3810 multiservice access concatenator, use the clock source controller configuration command. To restore the clock source to its default setting, use the no form of this command.

clock source {line | internal | loop-timed}

no clock source

Syntax Description

line

Specifies that the DS1 link uses the recovered clock. The line value is the default clock source used when the Multiflex Trunk (MFT) is installed.

internal

Specifies that the DS1 link uses the internal clock. The internal value is the default clock source used when the Digital Voice Module (DVM) is installed.

loop-timed

Specifies that the T1/E1 controller will take the clock from the Rx (line) and use it for Tx. This setting decouples the controller clock from the system-wide clock set with the network-clock-select command. The loop-timed clock enables the DVM to connect to a PBX and to connect the MFT to a central office when both the PBX and the central office function as DCE clock sources. This situation assumes that the PBX also takes the clocking from the central office thereby synchronizing the clocks on the DVM and the MFT.

cmt connect

To start the processes that perform the connection management (CMT) function and allow the ring on one fiber to be started, use the cmt connect EXEC command.

cmt connect [fddi [ port | slot/port ] [phy-a | phy-b]]

Syntax Description

fddi

(Optional) Identifies this as a FDDI interface.

port

Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.

slot

Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.

phy-a

(Optional) Selects Physical Sublayer A.

phy-b

(Optional) Selects Physical Sublayer B.

cmt disconnect

To stop the processes that perform the connection management (CMT) function and allow the ring on one fiber to be stopped, use the cmt disconnect EXEC command.

cmt disconnect [fddi [ port | slot/port ] [phy-a | phy-b]]

Syntax Description

fddi

(Optional) Identifies this as a FDDI interface.

port

Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.

slot

Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.

phy-a

(Optional) Selects Physical Sublayer A.

phy-b

(Optional) Selects Physical Sublayer B.

compress

To configure software compression for Link Access Procedure, Balanced (LAPB), Point-to-Point Protocol (PPP), and High-Level Data Link Control (HDLC) encapsulations, use the compress interface configuration command. On Cisco 7200 series routers and Cisco 7500 series routers, hardware compression on the compression service adapter (CSA) is supported for PPP links. To disable compression, use the no form of this command.

compress {predictor | stac}

no compress {predictor | stac}


Cisco VIP2 Cards

compress {predictor | stac [distributed | software]}

Cisco 7200 Series

compress {predictor | stac [ csa slot | software]}

PPP Encapsulation

compress [predictor | stac | mppc [ignore-pfc]]

Syntax Description

predictor

Specifies that a predictor (RAND) compression algorithm will be used on LAPB and PPP encapsulation. Compression is implemented in the software installed in the router's main processor.

stac

Specifies that a Stacker (LZS) compression algorithm will be used on LAPB, HDLC, and PPP encapsulation. For all platforms except Cisco  7200 series and platforms that support the VIP2, compression is implemented in the software installed in the router's main processor.

On Cisco 7200 series, on VIP2s in Cisco 7500 series specifying the compress stac command with no options causes the router to use the fastest available compression method for PPP encapsulation only:

distributed

(Optional) Specifies that compression is implemented in the software that is installed in a VIP2. If the VIP2 is not available, compression is performed in the router's main processor (software compression).

software

(Optional) Specifies that compression is implemented in the Cisco IOS software installed in the router's main processor.

csa slot

(Optional) Specifies the CSA to use for a particular interface. This option applies only to Cisco 7200 series routers.

mppc

(Optional) Specifies that the MPPC compression algorithm will be used.

ignore-pfc

(Optional) Specifies that the protocol field compression flag negotiated through LCP will be ignored.

compress mppc

To configure compression using the Microsoft PPC (MPPC) compression algorithm on your data compression Advanced Interface Module (AIM) for the Cisco 2600 series router, enter the compress mppc interface configuration command. The MPPC compression algorithm is used to exchange compressed information with a Microsoft NT remote access server. To disable compression, use the no form of this command.

compress mppc

no compress

Syntax Description

This command has no arguments or keywords.

compress predictor

The compress command replaces this command.

compress stac caim

To specify the exact hardware compression resource preferred, enter the compress stac caim interface configuration command. To disable compression, use the no form of this command.

compress stac caim element-number

no compress stac element-number

Syntax Description

element-number

Enables compression for this interface. AIM interfaces begin with 0.

controller t1

To configure a T1 controller, use the controller t1 global configuration command. To delete the defined controller, use the no form of this command.

controller t1 dial-shelf/slot/t3-port:t1-num

no controller t1 dial-shelf/slot/t3-port:t1-num

Syntax Description

dial-shelf

Dial shelf chassis in the Cisco AS5800 access server containing the CT3 interface card.

slot

Location of the CT3 interface card in the dial shelf chassis.

t3-port

T3 port number. The only valid value is 0.

:t1-num

T1 timeslot in the T3 line. The value can be from 1 to 28.

controller t3

To configure the Channelized T3 Interface Processor (CT3IP) in Cisco 7500 series routers, or the CT3 feature board in Cisco AS5800 access servers, use the controller t3 global configuration command. To delete the defined controller, use the no form of this command.

Cisco 7500 Series

controller t3 slot/port-adapter/port

no controller t3 slot/port-adapter/port

Cisco AS5800 Access Server

controller t3 dial-shelf/slot/t3-port

no controller t3 dial-shelf/slot/t3-port

Syntax Description

slot

Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.

port

Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.

port-adapter

Number of the port-adapter being configured. Refer to the appropriate hardware manual for information about port adapter compatibility.

dial-shelf

Dial shelf chassis in the Cisco AS5800 access server containing the CT3 interface card.

slot

Location of the CT3 interface card in the dial shelf chassis.

t3-port

T3 port number. The only valid value is 0.

copy flash lex

To download an executable image from Flash memory on the core router to the LAN Extender chassis, use the copy flash lex privileged EXEC command.

copy flash lex number

Syntax Description

number

Number of the LAN Extender interface to which to download an image from Flash memory.

copy tftp lex

To download an executable image from a TFTP server to the LAN Extender, use the copy tftp lex privileged EXEC command.

copy tftp lex number

Syntax Description

number

Number of the LAN Extender interface to which to download an image.

crc

To set the length of the cyclic redundancy check (CRC) on a Fast Serial Interface Processor (FSIP) or HSSI Interface Processor (HIP) of the Cisco 7500 series routers or on a 4-port serial adapter of the Cisco 7200 series routers, use the crc interface configuration command. To set the CRC length to 16 bits, use the no form of this command.

crc size

no crc

Syntax Description

size

CRC size (16 or 32 bits). The default is 16 bits.

crc4

To enable generation of CRC4 (per ITU Recommendation G.704 and G.703) to improve data integrity, use the crc4 interface configuration command. To disable this feature, use the no form of this command.

crc4

no crc4

Syntax Description

This command has no arguments or keywords.

crc bits 5

To enable generation of CRC5 (per ITU Recommendation G.704 and G.703) to improve data integrity, use the crc bits 5 interface configuration command. To disable this feature, use the no form of this command.

crc bits 5

no crc bits 5

Syntax Description

This command has no arguments or keywords.

cut-through

To configure the interfaces on the PA-12E/2FE port adapter to use cut-through switching technology between interfaces within the same bridge group, use the cut-through interface configuration command. To return each interface to store-and-forward switching, use the no form of this command.

cut-through [receive | transmit]

no cut-through

Syntax Description

receive

(Optional) Selects cut-through switching technology on received data.

transmit

(Optional) Selects cut-through switching technology on transmitted data.


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Posted: Wed Jul 26 12:55:01 PDT 2000
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