Catalyst 6500 Series Switch SIP, SSC, and SPA Software Configuration Guide

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# controller sonet slot/subslot/port

Selects the controller to configure and enters controller configuration mode.

•slot/subslot/port—Specifies the location of the interface.

Note On the 1-Port Channelized OC-3/STM-1 SPA, the port number is always 0.

To continue the configuration using SONET framing, perform the configuration described in the "Configuring for SONET Framing" section.

To continue the configuration using SDH framing, perform the configuration described in the "Configuring for SDH Framing" section.

Step 1 

Router(config-controller)# framing sonet

Specifies SONET as the frame type. This is the default.

Step 2 

Router(config-controller)# clock source {internal | line}

(Optional) Sets the clock source.

•internal—Specifies that the internal clock source is used.

•line—Specifies that the network clock source is used. This is the default.

Note The clock source must be set to internal if the opposite end of the connection is set to line and the clock source must be set to line if the opposite end of the connection is set to internal.

Step 3 

Router(config-controller)# [no] loopback {local | network}

(Optional) Enables or disables loopback mode on a SONET controller.

•local—Loops data from the transmit path to the receive path.

•network—Loops data received on the external port to the transmit path and back out the external port.

By default, loopback is disabled.

Step 4 

Router(config-controller)# [no] ais-shut

(Optional) By default, a Line Alarm Indication Signal (LAIS) is sent to the far end when a port is shut down. The no option disables sending LAIS when the port is administratively shut down.

Step 5 

Router(config-controller)# [no] idle pattern 0-255

(Optional) Sets the data to be written to the idle (disabled, or unprovisioned) time-slots of a channelized path.

The default idle pattern is 127 (hex 7F).

Step 6 

Router(config-controller)# [no] ber-threshold {b1-tca | b2-tca | b3-tca | sd-ber | sf-ber} exponent

(Optional) Sets bit error rate (BER) thresholds. The BER is 10 to the negative exponent. These are the thresholds:

•b1-tca—B1 BER threshold crossing alarm.

•b2-tca—B2 BER threshold crossing alarm.

•b3-tca—B3 BER threshold crossing alarm, applied to all channels.

•sd-ber—Sets Signal Degrade BER threshold.

•sf-ber—Sets Signal Fail BER threshold.

The exponent range is 3 to 9 for all except Signal Degrade BER, which has a range of 5 to 9.

Step 7 

Router(config-controller)# sts-1 sts1#

Selects the SONET STS-1 level to configure.

For the 1-Port Channelized OC-3/STM-1 SPA, the range of sts1# is 1 to 3.

Step 8 

Router(config-ctrlr-sts1)# [no] mode {vt-15 | ct3 | ct3-e1 | t3}

Specifies the mode of operation of a STS-1 path:

•vt-15—The STS-1 is divided into seven Virtual Tributary Groups (VTG). Each VTG is then divided into four VT1.5 channels, each carrying a DS1.

•ct3—The STS-1 carries a DS3 signal divided into 28 DS1 channels (PDH).

•ct3-e1—The STS-1 carries a DS3 signal divided into 21 E1 channels (PDH).

•t3—The STS-1 carries an unchannelized (clear channel) DS3.

SONET framing does not support E3 modes.

If you select mode vt-15, perform the configuration described in the "Configuring DS1 (Channelized T3 mode)" section.

If you select mode ct3, perform the configuration described in the "Configuring Channelized DS3" section.

If you select mode ct3-e1, perform the configuration described in the "Configuring E1 (SONET Channelized T3-E1 mode)" section.

If you select mode t3, perform the configuration described in the "Configuring an Unchannelized DS3 Serial Interface" section.

Repeat from Step 7 for each SONET STS-1 level.

Step 1 

Router(config-controller)# framing sdh

Specifies SDH as the frame type.

Step 2 

Router(config-controller)# aug mapping {au-3 | au-4}

Configures administration units group (AUG) mapping. This command is available only when SDH framing is configured.

•au-3—The following muxing/alignment/mapping will be used:

VC-3 <--> AU-3 <--> AUG

•au-4—The following muxing/alignment/mapping will be used:

TUG-3 <--> VC-4 <--> AU-4 <--> AUG

The default is au-4.

Step 3 

Router(config-controller)#
au-3 au-3#

If you selected AUG mapping as au-3, you can further specify AU-3 muxing.

The CLI command parser will enter into config-ctrlr-au3 parser mode, which will make only relevant commands visible.

The au-3# range is from 1 to 3.

Router(config-controller)#
au-4 1 tug-3 tug-3#

If you selected AUG mapping as au-4, you can further specify TUG-3 muxing.

The CLI command parser will enter into config-ctrlr-tug3 parser mode, which will make only relevant commands visible.

The tug-3# range is from 1 to 3.

Step 4 

Router(config-ctrlr-au3)#
[no] mode c-11

If you selected AUG mapping as au-3, you can specify c-11 mode, a container level-n channelized DS3, subdivided into 28 DS1 channels. In this mode, the AU-3 is divided into seven TUG-2 channels. Each TUG-2 is then divided into four TU-11 channels, each carrying a DS1 channel.

Router(config-ctrlr-tug3)#
[no] mode {c-12 | t3 | e3}

If you selected AUG mapping as au-4, you can specify the following modes:

•c-12—A container level-n channelized DS3, subdivided into 21 E1 channels. The AU-4/TUG-3 is divided into seven TUG-2 channels. Each TUG-2 is then divided into three TU-12 channels, each carrying an E1 channel.

•t3—The AU-4/TUG-3 carries an unchannelized (clear channel) DS3 channel.

•e3—The AU-4/TUG-3 carries a unchannelized (clear channel) E3 channel.

If you select mode c-11, perform the configuration described in the "Configuring DS1 (Channelized T3 mode)" section.

If you select mode c-12, perform the configuration described in the "Configuring E1 (SDH Channelized T3/E3 mode)" section.

If you select mode t3, perform the configuration described in the "Configuring an Unchannelized DS3 Serial Interface" section.

If you select mode e3, perform the configuration described in the "Configuring an Unchannelized E3 Serial Interface" section.

Repeat from Step 3 for each AU-3 or TUG-3 group.

Note If you configure an AU-3 or TUG-3 group as mode c-11 or t3, you cannot use modes c-12 or e3 for the other AU-3 or TUG-3 groups.

Step 1 

Router(config-ctrlr-xxx¹ )#
[no] t3 framing {c-bit | m23 | auto-detect}

(Optional) Specifies the T3 framing mode.

•c-bit—Use C-bit parity framing.

•m23—Use M23 framing.

•auto-detect—Detects the framing type at the device at the end of the line and switches to that framing type. If both devices are set to auto-detect, c-bit framing is used.

Step 2 

Router(config-ctrlr-xxx)#
[no] t3 clock source {internal | line}

(Optional) Sets the clock source.

•internal—Specifies that the internal clock source is used.

•line—Specifies that the network clock source is used. This is the default for T1 and E1.

Note The clock source must be set to internal if the opposite end of the connection is set to line and the clock source must be set to line if the opposite end of the connection is set to internal.

Step 3 

Router(config-ctrlr-xxx)# [no] t3 loopback {local | network [line | payload] | remote [line | payload]}

(Optional) Enables or disables loopback mode on a SONET controller. These are the supported loopback modes:

•local—Loops data from the transmit path to the receive path.

•network—Loops all data or only payload data received on the external port to the transmit path and back out the external port.

•remote—Sends Far End Alarm and Control (FEAC) to set remote system in either line or payload loopback. Applicable only to C-bit framing.

The default is no loopback.

Step 4 

Router(config-ctrlr-xxx)# [no] t3 mdl string {eic | fic | generator | lic | pfi | port | unit} string

(Optional) Maintenance Data Link (MDL) messages are used to communicate identification information between local and remote ports.

Configures the contents of the MDL message.

•eic—Specifies the Equipment Identification Code; can be up to 10 characters.

•fic—Specifies the Frame Identification Code; can be up to 10 characters.

•generator—Specifies the Generator number string sent in the MDL Test Signal message; can be up to 38 characters.

•lic— Specifies the Location Identification Code; can be up to 11 characters.

•pfi—Specifies the Path Facility Identification Code sent in the MDL Path message; can be up to 38 characters.

•port—Specifies the port number string sent in the MDL Idle Signal message; can be up to 38 characters.

•unit—Specifies the Unit Identification Code; can be up to 6 characters.

The default is no MDL string.

Step 5 

Router(config-ctrlr-xxx)# [no] t3 mdl transmit {path | idle-signal | test-signal}

(Optional) Configures the transmission of the MDL message.

•path—Enables MDL Path message transmission.

•idle-signal—Enables MDL Idle-Signal message transmission

•test-signal—Enables MDL Test-Signal message transmission.

The default is no MDL transmit.

Step 6 

Router(config-ctrlr-xxx)#
[no] t3 equipment {customer | network} loopback

(Optional) Determines response to remote loopback request.

•customer—Enables the port to honor remote loopback requests.

•network—Disables remote loopback requests.

Note Remote loopbacks are only available in c-bit framing mode.

Step 1 

Router(config-ctrlr-xxx¹ )# [no] prefix² t1 t1# clock source {internal | line}

(Optional) Sets the clock source.

•internal—Specifies that the internal clock source is used.

•line—Specifies that the network clock source is used. This is the default.

Note The clock source must be set to internal if the opposite end of the connection is set to line and the clock source must be set to line if the opposite end of the connection is set to internal.

Step 2 

Router(config-ctrlr-xxx)# [no] prefix t1 t1# framing {sf | esf}

(Optional) Specifies the T1 framing type using the framing command.

•sf—Specifies Super Frame as the T1 frame type.

•esf—Specifies Extended Super Frame as the T1 frame type. This is the default.

Note If you select sf framing, consider disabling yellow alarm detection because the yellow alarm can be incorrectly detected with sf framing.

Step 3 

Router(config-ctrlr-xxx)# [no] prefix t1 t1# yellow {detection | generation}

(Optional) Enables detection or generation of DS1 yellow alarms,

Step 4 

Router(config-ctrlr-xxx)# prefix t1 t1# channel-group channel-number# timeslots range [speed {56 | 64}]

Specifies the DS1 channel and timeslots to be mapped to each channel.

•channel-number—Specifies a channel-group mapping (0-23) under the designated T1.

•range—List of timeslots under the channel-group. Timeslots assigned to this T1 can be 1-24 or a combination of subranges within 1- 24. You can indicate a range using a hyphen, commas, or a combination of both. One timeslot equals one DS0.

•speed 56 or 64— Specifies the speed of a timeslot as either 56 or 64 kbps. The default speed is 64 kbps.

Router(config-ctrlr-xxx)#
no prefix t1 t1# channel-group channel-number#

To alter the configuration of an existing channel group, the channel group must be removed first using the no form of the channel-group command.

Step 5 

Router(config-ctrlr-xxx)# [no] prefix t1 t1# fdl ansi

(Optional) Enables the one-second transmission of remote performance reports via the Facility Data Link (FDL) per ANSI T1.403. This function requires that the T1 framing type is Extended Super Frame (ESF).

Step 6 

Router(config-ctrlr-xxx)# [no] prefix t1 t1# loopback {local | network line | remote {line fdl {ansi | bellcore} | payload fdl ansi}}

(Optional) Specifies the loopback mode for testing.

•local—Loops data from the transmit path to the receive path.

•network line—Loops data received on the external port to the transmit path and back out the external port before going through the T1 framer.

•remote line fdl—Sends a repeating 16-bit ESF data link code word to the remote end requesting that it enter into a network line loopback.

–For ansi, the code word is (00001110 11111111).

–For bellcore, the code word is (00010010 11111111).

•remote payload fdl ansi—Sends a repeating 16-bit ESF data link code word (00010100 11111111) to the remote end requesting that it enter into a network payload loopback.

Note Local network payload loopback is not supported due to TEMUX-84/TEMUX-84E limitations.

Step 7 

Router(config-ctrlr-xxx)# [no] prefix t1 t1# shutdown

The no args shutdown command enables the interface. The args shutdown command disables the interface.

Step 8 

Configure the serial interfaces.

Note After a T1 channel is configured, it appears to the Cisco IOS software as a serial interface; therefore, all the configuration commands for a serial interface are available. However, not all commands are applicable to the T1 interface. For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 1 

Router(config-ctrlr-sts1)# e1 e1# channel-group channel-group# timeslots list-of-timeslots [speed {56 | 64}]

Specifies the E1 channel and timeslots to be mapped to each channel.

•channel-number—Specifies a channel-group mapping (0-30) under the designated E1.

•range—List of timeslots under the channel-group. Timeslots assigned to this E1 can be 1-31 or a combination of subranges within 1-31. You can indicate a range using a hyphen, commas, or a combination of both. One timeslot equals one DS0.

•speed 56 or 64— Specifies the speed of a timeslot as either 56 or 64 kbps. The default speed is 64 kbps.

Router(config-ctrlr-sts1)#
no e1 e1# channel-group channel-group#

To alter the configuration of an existing channel group, the channel group must be removed first using the no form of the channel-group command.

Step 2 

Router(config-ctrlr-sts1)# [no] e1 e1# unframed | framing {crc4 | no-crc4}

(Optional) Sets the framing on the interface.

•unframed—Unframed mode (G.703) uses all 32 time slots for data, none for framing signals.

•framing—Uses a time slot for framing signals.

–crc4—Specifies CRC4 as the E1 frame type.

–no-crc4—Specifies no CRC4 as the E1 frame type.

The default is framing with crc4.

Step 3 

Router(config-ctrlr-sts1)# [no] e1 e1# clock source {internal | line}

(Optional) Sets the clock source.

•internal—Specifies that the internal clock source is used.

•line—Specifies that the network clock source is used. This is the default.

Note The clock source must be set to internal if the opposite end of the connection is set to line and the clock source must be set to line if the opposite end of the connection is set to internal.

Step 4 

Router(config-ctrlr-sts1)# [no] e1 e1# national bits pattern

(Optional) The national bit is reserved for national use and is set to 0 by default. Change this bit only when required for interoperability with your telephone company.

Step 5 

Router(config-ctrlr-sts1)# [no] e1 e1# loopback [local | network]

(Optional) Enables or disables loopback mode on a serial port. These are the supported loopback modes:

•local—Loops data from the transmit path to the receive path.

•network—Loops data received on the external port to the transmit path and back out the external port.

The default is no loopback.

Step 6 

Router(config-ctrlr-sts1)# [no] e1 e1# shutdown

The no args shutdown command enables the interface. The args shutdown command disables the interface.

Step 7 

Configure the serial interfaces.

Note After an E1 channel is configured, it appears to the Cisco IOS software as a serial interface; therefore, all the configuration commands for a serial interface are available. However, not all commands are applicable to the E1 interface. For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 1 

Router(config-ctrlr-tug3)# tug-2 tug-2# e1 e1# channel-group channel-group# timeslots list-of-timeslots [speed {56 | 64}]

Specifies the E1 channel and timeslots to be mapped to each channel.

•channel-number—Specifies a channel-group mapping (0-30) under the designated E1.

•range—List of timeslots under the channel group. Timeslots assigned to this E1 can be 1-31 or a combination of subranges within 1-31. You can indicate a range using a hyphen, commas, or a combination of both. One timeslot equals one DS0.

•speed 56 or 64— Specifies the speed of a timeslot as either 56 or 64 kbps. The default speed is 64 kbps.

Router(config-ctrlr-tug3)#
no tug-2 tug-2# e1 e1# channel-group channel-group#

To alter the configuration of an existing channel group, the channel group must be removed first using the no form of the channel-group command.

Step 2 

Router(config-ctrlr-tug3)# [no] tug-2 tug-2# e1 e1# unframed | framing {crc4 | no-crc4}

(Optional) Sets the framing on the interface.

•unframed—Unframed mode (G.703) uses all 32 time slots for data, none for framing signals.

•framing—Uses a time slot for framing signals.

–crc4—Specifies CRC4 as the E1 frame type.

–no-crc4—Specifies no CRC4 as the E1 frame type.

The default is framing with crc4.

Step 3 

Router(config-ctrlr-tug3)# [no] tug-2 tug-2# e1 e1# clock source {internal | line}

(Optional) Sets the clock source.

•internal—Specifies that the internal clock source is used.

•line—Specifies that the network clock source is used. This is the default.

Note The clock source must be set to internal if the opposite end of the connection is set to line and the clock source must be set to line if the opposite end of the connection is set to internal.

Step 4 

Router(config-ctrlr-tug3)# [no] tug-2 tug-2# e1 e1# national bits pattern

(Optional) The national bit is reserved for national use and is set to 0 by default. Change this bit only when required for interoperability with your telephone company.

Step 5 

Router(config-ctrlr-tug3)# [no] tug-2 tug-2# e1 e1# loopback [local | network]

(Optional) Enables or disables loopback mode on a serial port. These are the supported loopback modes:

•local—Loops data from the transmit path to the receive path.

•network—Loops data received on the external port to the transmit path and back out the external port.

The default is no loopback.

Step 6 

Router(config-ctrlr-tug3)# [no] tug-2 tug-2# e1 e1# shutdown

The no args shutdown command enables the interface. The args shutdown command disables the interface.

Step 7 

Configure the serial interfaces.

Note After an E1 channel is configured, it appears to the Cisco IOS software as a serial interface; therefore, all the configuration commands for a serial interface are available. However, not all commands are applicable to the E1 interface. For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 1 

Router(config-ctrlr-xxx¹ )# end

Exits SONET or SDH framing mode configuration.

Step 2 

Router(config)# interface serial slot/subslot/port.au-4/tug-3

or

interface serial slot/subslot/port.sts1

Selects the T3 serial interface to configure.

For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# [no] dsu mode {0 | 1 | 2 | 3 | 4}

Specifies the interoperability mode used by a DS3 controller.

•0—Connects to another DS3 controller or to a Digital Link DSU (DL3100 in T3 mode). This is the default.

•1—Connects to a Kentrox DataSMART DS3 IDSU.

•2—Connects to a Larscom Access-T45 DS3 DSU.

•3—Connects to an Adtran T3SU 300.

•4—Connects to a Verilink HDM 2182.

The default is 0 (Digital Link).

Step 4 

Router(config-if)# [no] dsu bandwidth kbps

(Optional) Specifies the allowable bandwidth in kbps. The default for DS3 mode is 44010 kbps. The bandwidth range and increment values are based on the specific DSU, as follows:

•Digital Link DL3100

–range: 300 to 44210 kbps

–increments: 300 kbps

•Digital Link DL3100E

–range: 358 to 34010 kbps

–increments: 358 kbps

•Kentrox DataSMART T3/E3 IDSU

–range: 1000 to 34000 kbps (E3 mode)

–range: 1500 to 44210 kbps (T3 mode)

–increments: 500 kbps

•Larscom Access-T45 DS3

–range: 3100 to 44210 kbps

–increments: 3100 kbps

•Adtran T3SU 300

–range: 80 to 44210 kbps

–increments: 80 kbps

•Verilink HDM 2182

–range: 1600 to 31600 kbps

–increments: 1600 kbps

Step 5 

Router(config-if)# [no] scramble

(Optional) Scrambling randomizes the pattern of ones and zeros carried in the physical layer frame in order to assist clock recovery on the receiving end. The default is no scramble.

Step 6 

Router(config-if)# [no] framing {c-bit | m13}

(Optional) Specifies framing mode.

•c-bit—Specifies C-bit parity framing.

•m13—Specifies M13 framing.

Unframed DS3 is not supported. Default is C-bit parity framing.

Step 7 

Router(config-if)# [no] dsu remote {fullrate | accept}

(Optional) Specifies where the DSU bandwidth is set.

•fullrate—Sets far end DSU to its full rate bandwidth.

•accept—Accepts incoming remote requests to reset DSU bandwidth.

Step 8 

Router(config-if)# [no] crc {16 | 32}

(Optional) Specifies CRC word size. Default is 16 bits (CRC-CITT).

Step 9 

Router(config-if)# [no] loopback {local | network | dte | remote [line | payload]}

(Optional) Specifies loopback.

•local—Loops data from the transmit path to the receive path.

•network—Loops data received on the external port to the transmit path and back out the external port.

•dte—Loops back after the line interface unit (LIU) towards the terminal.

•remote—Sends Far End Alarm and Control (FEAC) to set remote system in either line or payload loopback.

Step 10 

Router(config-if)#
no shutdown

The no shutdown command enables the interface. The shutdown command disables the interface.

Step 1 

Router(config-ctrlr-tug3)# end

Exits SDH framing mode configuration.

Step 2 

Router(config)# interface serial slot/subslot/port.au-4/tug-3

Selects the E3 serial interface to configure.

For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# dsu mode
{cisco | digital-link | kentrox}

Specifies the interoperability mode.

•cisco—Specifies Cisco as the dsu mode.

•digital-link—Specifies Digital Link as the dsu mode.

•kentrox—Specifies Kentrox as the dsu mode.

Default is cisco.

Step 4 

Router(config-if)# [no] dsu bandwidth kbps

(Optional) Specifies the maximum allowed bandwidth in kbps. The available range for each DSU type is:

•Cisco—Range is 300-34010 kbps.

•Digital Link—Range is 300-34010 kbps.

•Kentrox—Range is 1000-24500, 34010 kbps.

Step 5 

Router(config-if)# [no] scramble

(Optional) Scrambling randomizes the pattern of ones and zeros carried in the physical layer frame in order to assist clock recovery on the receiving end. The default is no scramble.

Step 6 

Router(config-if)# [no] national bit {0 | 1}

(Optional) The national bit is reserved for national use and is set to 0 by default. Change this bit only when required for interoperability with your telephone company.

Step 7 

Router(config-if)# [no] framing {g751 | g832}

(Optional) Sets the framing on the interface.

•g751—Specifies g751 framing. This is the default for E3.

•g832—Specifies g832 framing.

Step 8 

Router(config-if)# [no] crc {16 | 32}

(Optional) Specifies CRC word size. Default is 16 bits (CRC-CITT).

Step 9 

Router(config-if)# [no] loopback {network | local | remote}

(Optional) Specifies loopback.

•local—Loops data from the transmit path to the receive path.

•network—Loops data received on the external port to the transmit path and back out the external port.

•remote—Sends Far End Alarm and Control (FEAC) to set remote system in loopback.

Step 10 

Router(config-if)# no shutdown

The no shutdown command enables the interface. The shutdown command disables the interface.

Step 1 

Router# configure terminal

Enters global configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the serial interface to configure.

For addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# encapsulation {hdlc | ppp | frame-relay}

Sets the encapsulation method on the interface.

•hdlc—High-level Data Link Control (HDLC) protocol for serial interface. This encapsulation method provides the synchronous framing and error detection functions of HDLC without windowing or retransmission. This is the default for synchronous serial interfaces.

•ppp—PPP (for serial interface).

•frame-relay—Frame Relay (for serial interface).

Step 1 

Router# configure terminal

Enters global configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the serial interface to configure.

For addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# crc {16 | 32}

Selects the CRC size in bits.

•16—16-bit CRC. This is the default

•32—32-bit CRC.

Step 1 

Router# configure terminal

Enters global configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the serial interface to configure.

For addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# [no] t1 t1# fdl {ansi | att}

Enables the transmission of remote performance reports via the Facility Data Link (FDL). This function requires that the T1 framing type is Extended Super Frame (ESF).

•ansi—Reports conform to the ANSI T1.403 protocol, and are sent at one-second intervals.

•att—Reports conform to the AT&T TR54016 protocol (a subset of ANSI T1.403), and are sent only when a request has been received.

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# [no] interface multilink group-number

Creates or configures a multilink interface and enters multilink interface mode.

•group-number—The group number for the multilink bundle.

Step 3 

Router(config-if)# [no] multilink fragment [fragment-size size]

(Optional) Enables fragmentation and sets the fragmentation size.

•size—Allowed sizes are 128, 256 or 512 bytes.

Fragmentation is disabled by default. When fragmentation is enabled, the default size is 128 bytes.

Step 4 

Router(config-if)# [no] multilink bundle-name {authenticated | endpoint | both}

(Optional) Specifies the criteria for naming the multilink bundle, as defined in RFC 1990.

•authenticated—Use the peer authenticated name as the bundle name. This is the default.

•endpoint—Use the peer endpoint discriminator as the bundle name.

•both—Use the peer authenticated name and endpoint discriminator as the bundle name.

Step 5 

Router(config-if)# [no] multilink min-links number [mandatory]

(Optional) Specifies the preferred minimum number of links in a multilink bundle.

•number—Sets the minimum number of links, from 0 to 255.

•mandatory—If the number of links in the bundle falls below the number specified, the bundle is disabled.

By default, the bundle goes down only when there are no links in the bundle.

Configure each serial interface you want to assign to the multilink bundle.

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the interface to configure and enters interface configuration mode.

For addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# [no] encapsulation ppp

Enables PPP encapsulation.

Step 4 

Router(config-if)# [no] multilink-group group-number

Assigns the interface to a multilink bundle.

•group-number—The multilink group number for the T1 or E1 bundle.

Step 5 

Router(config-if)# ppp chap hostname name

Specifies a pool of dialup routers that all appear to be the same host when authenticating with CHAP.

Note This command is mandatory when there is more than one bundle across two routers; otherwise, it is optional.

Step 6 

Router(config-if)# [no] ppp multilink

Enables the negotiation of multilink on an interface.

This command is automatically implied for interfaces that are configured as part of a multilink bundle.

Repeat these commands for each interface you want to assign to the multilink bundle.

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# [no] interface mfr number

Creates or configures a multilink Frame Relay bundle interface.

•number—The number for the Frame Relay bundle. The range is 0 to 2147483647.

Step 3 

Router(config-if)# [no] frame-relay multilink bid name

(Optional) Assigns a bundle identification name to a multilink Frame Relay bundle.

•name—The name for the Frame Relay bundle.

Note The bundle identification (BID) will not go into effect until the interface has gone from the down state to the up state. One way to bring the interface down and back up again is by using the shutdown and no shutdown commands in interface configuration mode.

Step 4 

Router(config-if)# [no] frame-relay multilink bandwidth-class class [threshold]

(Optional) Specifies FRF.16 class A, B, or C, configuring the trigger point for activating or deactivating a bundle.

•a—Class A will bring up the bundle if at least one bundle link is active.

•b—Class B will bring up the bundle only if all links are active, and will bring down the bundle if any link becomes inactive.

•c—Class C wil bring the bundle up or down depending on the threshold number of links being active.

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the interface to configure and enters interface configuration mode.

For addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# [no] encapsulation frame-relay mfr number [name]

Creates a multilink Frame Relay bundle link and associates the link with a bundle.

•number—The number for the Frame Relay bundle.

•name—The name for the Frame Relay bundle.

Step 4 

Router(config-if)# [no] frame-relay multilink lid name

(Optional) Assigns a bundle link identification name with a multilink Frame Relay bundle link.

•name—The name for the Frame Relay bundle.

Note The bundle link identification (LID) will not go into effect until the interface has gone from the down state to the up state. One way to bring the interface down and back up again is by using the shutdown and no shutdown commands in interface configuration mode.

Step 5 

Router(config-if)# [no] frame-relay fragment size end-to-end

(Optional) Enables and configures Frame Relay end-to-end fragmentation (FRF.12) on the serial interface.

The range of fragment size is 16 to 1600.

Step 6 

Router(config-if)# frame-relay multilink hello seconds

(Optional) Configures the interval at which a bundle link will send out hello messages. The default value is 10 seconds.

•seconds—Number of seconds between hello messages sent out over the multilink bundle.

Step 7 

Router(config-if)# frame-relay multilink ack seconds

(Optional) Configures the number of seconds that a bundle link will wait for a hello message acknowledgment before resending the hello message. The default value is 4 seconds.

•seconds—Number of seconds a bundle link will wait for a hello message acknowledgment before resending the hello message.

Step 8 

Router(config-if)# frame-relay multilink retry number

(Optional) Configures the maximum number of times a bundle link will resend a hello message while waiting for an acknowledgment. The default value is 2 tries.

•number—Maximum number of times a bundle link will resend a hello message while waiting for an acknowledgment.

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the serial interface.

For addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# invert data

Inverts the data stream.

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the Working interface to configure.

For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# ip address ip-address mask [secondary]

Specifies the IP address and subnet mask for the Working interface.

Repeat this command with the secondary keyword to specify additional IP addresses to be used for the interface.

Step 4 

Router(config-if)# aps group group-number

Enables the use of the APS Protect Group Protocol for this Working interface.

•group-number—Unique number identifying this pair of Working and Protect interfaces.

Note The aps group command is optional if this is the only pair of Working and Protect interfaces on the switch, but is required when you configure more than one pair of Working and Protect interfaces on the same switch.

Step 5 

Router(config-if)# aps working circuit-number

Identifies the interface as the Working interface.

•circuit-number—Identification number for this particular channel in the APS pair. Because only 1+1 redundancy is supported, the only valid values are 0 or 1, and the Working interface defaults to 1.

Step 6 

Router(config-if)# aps authentication security-string

(Optional) Specifies a security string that must be included in every OOB message sent between the Working and Protect interfaces.

•security-string—Arbitrary string to be used as a password between the Working and Protect interfaces. This string must match the one configured on the Protect interface.

Step 7 

Router(config)# interface serial interface-name

Selects the Protect interface to configure.

For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 8 

Router(config-if)# ip address ip-address mask [secondary]

Specifies the IP address and subnet mask for the Protect interface.

Note This should be the same address that was configured on the Working interface in Step 3.

Repeat this command with the secondary keyword to specify additional IP addresses to be used for the interface. These should match the secondary IP addresses that are configured on the Working interface.

Step 9 

Router(config-if)# aps group group-number

Enables the use of the APS Protect Group Protocol for this Protect interface.

•group-number—Unique number identifying this pair of Working and Protect interfaces.

Note The aps group command is optional if this is the only pair of Working and Protect interfaces on the switch, but is required when you configure more than one pair of Working and Protect interfaces on the same switch.

Step 10 

Router(config-if)# aps protect circuit-number ip-address

Identifies this interface as the Protect interface:

•circuit-number—Identification number for this particular channel in the APS pair. Because only 1+1 redundancy is supported, the only valid values are 0 or 1, and the Protect interface defaults to 0.

•ip-address—The Protect interface uses this IP address to communicate with the Working interface.

Note This IP address should be the address of the Working interface if the Protect and Working interfaces are on the same switch. If the Working and Protect interfaces are on different switches, this should be the IP address of the Ethernet interface that provides interconnectivity between the two switches.

Step 11 

Router(config-if)# aps authentication security-string

(Optional) Specifies a security string that must be included in every OOB message sent between the Working and Protect interfaces.

•security-string—Arbitrary string to be used as a password between the Working and Protect interfaces. This string must match the one configured on the Working interface.

Step 12 

Router(config-if)# aps revert minutes

(Optional) Enables the Protect interface to automatically switch back to the Working interface after the Working interface has been up for a specified number of minutes.

•minutes—Number of minutes until the interface is switched back to the Working interface after the Working interface comes back up.

Note If this command is not used, you must manually switch back to the Working interface using either the aps force circuit-number or the aps manual circuit-number command.

Step 13 

Router(config-if)# [no] aps unidirectional

(Optional) Configures the Protect interface for unidirectional mode. The no option configures for bidirectional, the default.

Step 14 

Router(config-if)# [no] aps signalling {sonet | sdh}

(Optional) Configures the signaling method. The default is SONET.

Step 15 

Router(config-if)# [no] aps timers hello-time hold-time

(Optional) Sets the time in seconds between hello packets (hello-time) and the waiting time (hold-time) before the Protect interface process declares a working interface to be down.

The default hello-time is 1 second.

The default hold-time is 3 seconds.

Step 1 

Router# configure terminal

Enters configuration mode.

Step 2 

Router(config)# interface serial interface-name

Selects the Working interface to configure.

For serial interface addressing information, refer to the "Serial Interface Naming" section.

Step 3 

Router(config-if)# [no] aps force circuit-number

(Optional) Manually switches the specified circuit to a Protect interface, unless a request of equal or higher priority is in effect.

•circuit-number—Identification number for this particular channel in the APS pair. Because only 1+1 redundancy is supported, the only valid values are 0 or 1, and the Working interface defaults to 1.

Step 4 

Router(config-if)# [no] aps manual circuit-number

(Optional) Manually switches the circuit to a Protect interface, unless a request of equal or higher priority is in effect.

Step 5 

Router(config-if)# [no] aps lockout circuit-number

(Optional) Prevents a working interface from switching to a protect interface.

Router(config-xxx¹ )# [no] [prefix² ] [t1 [t1#] | [e1 [e1#] | t3] bert pattern {0s | 1s | 2^15 | 2^20 | 2^23 | alt-0-1 | qrss} interval minutes

Starts or stops a specific bit pattern on a DS1/E1/T3 line. For DS1 and E1, you can optionally specify a specific channel number as the t1 or e1 number.

The interval specifies the length of the test in minutes. The range is 1 to 14400.

The no option stops the test.

Note Only six E1 BERTs can be performed concurrently due to TEMUX-84/TEMUX-84E limitations.