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ISDN PRI, T1, and E1 15
- This chapter describes how to use the command line interface to configure T1 and E1 lines on the PortMaster 4 for the following kinds of services:
T1 Line0 through Line3
|
E1 Line0 through Line2
|
|---|
Full T1
| Full E1
|
Fractional T1
| Fractional E1
|
Channelized T1
| Multifrequency R2 (MFR2) signaling for channelized E1
|
ISDN Primary Rate Interface (PRI)
| ISDN PRI
|
| Fractional PRI
|
- This chapter also describes commands for monitoring the digital modems on the PortMaster 4.
- For additional configuration information, see the PortMaster 4 Installation Guide .
Note ¯ 
After making any configuration changes to a line, you must use the save all and reset slot commands for the changes to take effect.
Displaying ISDN PRI, T1, and E1 Diagnostic Information
- To display ISDN PRI and modem debug information on the console, use the following commands:
- When finished, use the following commands:
- To display line configuration or status, use the following commands:
Summary of ISDN PRI, T1, and E1 Commands
- The ISDN PRI, T1, and E1 configuration commands are shown in Table 15-1.
ISDN PRI, T1, and E1 Commands
- These commands are used for configuring and displaying the status of digital modems and ISDN PRI, E1, or T1 lines.
reset D0
- This command resets individual D channels for troubleshooting purposes.
reset D0
| D0
| One of the D channels--d0 , d1 , d2 , or d3 .
|
- The PortMaster 4 supports this command on ComOS 4.1 and later releases.
- You must first select the slot containing the Quad T1 or Tri E1 board using the set view command.
- Command> set view 0
View changed from 4 to 0
Command 0> reset d0
Send reset (9)
Board ISDN channel D0 RESET
set imt-parms
- This command sets the Signaling System 7 (SS7) gateway address, the listening port on the SS7 gateway, the PortMaster 4 base socket, and the switch type for an intermachine trunk (IMT).
set imt-parms Ipaddress Tport1 Tport2 [1a|default]
| Ipaddress
| SS7 gateway address--IP address in dotted decimal notation--provided by the SS7 gateway administrator.
|
| Tport1
| SS7 gateway port--the TCP socket in the SS7 gateway that is used to listen for SS7 clients. The gateway port is provided by the SS7 gateway administrator.
|
| Tport2
| Local port--the base value assigned to slot 0 from which the PortMaster 4 derives the originating TCP port number for each Quad T1 and Tri E1 board. Each board derives its local port number by adding its slot number to the base local port value.
|
Note ¯ 
The Tport2 value is same for all slots on any single PortMaster 4.
|
| 1a
| Sets the switch type to 1A. This switch type enables the PortMaster 4 to interpret the loopback command from the SS7 gateway as 1A continuity check requests.
|
Note ¯ 
If you set the switch type to 1a , you must also set signaling to robbed bit signaling using the set Line0 signaling rbs command.
|
| default
| Supports all other switch types. This is the default. If no argument is specified, the PortMaster assumes the default setting.
|
- The PortMaster 4 supports SS7 signaling on ComOS 4.1 and later releases.
- To use this command, you must first select a slot for configuration using the set view command.
- A single PortMaster 4 supports only one SS7 gateway, and any single PortMaster 4 supports only 96 modems for SS7 signaling. Because modem pools are managed on a slot-by-slot basis, each slot on the PortMaster 4 connected to an intermachine trunk (IMT) is an independent SS7 client and establishes an independent session with the SS7 gateway.
- You must also configure the lines of a Quad T1 or Tri E1 board using the set Line0 imt command.
- To save the SS7 settings and activate them, you must enter save all and reset slot.
- For more information about SS7 configuration, see the PortMaster 4 Configuration Guide .
- The following example sets an SS7 gateway with IP address 192.168.0.0 and TCP port number 1000 to communicate with a line board in slot 0 of the PortMaster 4 on TCP port 7000. Any additional slots configured for SS7 on this PortMaster 4 must also use 7000 as a local base port.
- Command> set view 0
View changed from 4 to 0
Command 0> set imt-parms 192.168.0.0 10000 7000 1a
Changed gateway IP address from 0.0.0.0 to 192.168.0.0
Changed gateway port from 0 to 100000
Changed local port from 7000 to 7000
See Also
- set Line0 imt - page 15-11
set Line0 signaling rbs - page 15-17
show imt - page 15-19
set isdn switch
- This command sets the switch type for ISDN connections to the PortMaster ISDN PRI ports.
set isdn-switch ni-2|dms-100|att-4ess|att-5ess
set isdn-switch net5|euroisdn|vn2|vn3|1tr6|ntt|kdd
| ni-2
| National ISDN-2 (NI-2) compliant. This is the default.
|
| dms-100
| Northern Telecom DMS-100.
|
| att-4ess
| AT&T 4ESS.
|
| att-5ess
| AT&T 5ESS.
|
| net5, euroisdn
| European ISDN PRI standard.
|
| vn2
| France--older switch.
|
| vn3
| France--older switch.
|
| 1tr6
| Germany--older switch.
|
| ntt
| Japan.
|
| kdd
| Japan.
|
| ts014
| Australia. To use this switch type, set the port type to network hardwired , set the directory number for the port appropriately, and reset the port.
|
|ts014
- To use this command, you must first select a slot for configuration using the set view command.
- The switch type information is available from your ISDN PRI telephone service provider. Any change you make in the switch provisioning setting does not take effect until you reset the active slot using the reset slot command.
set Line0
- This command allows you to use a line as a single E1 or T1 line; as PRI B channels; as a fractional ISDN, E1, or T1 line divided into channel groups; or for in-band signaling for channelized T1 and E1.
Note ¯ 
T1 and E1 settings are mutually exclusive and are dependent on the PortMaster model.
set Line0 isdn|t1|e1|fractional|isdn-fractional|inband
| Line0
| line0 , line1, line2, or line3 .
|
| isdn
| Uses the line as PRI B channels. This is the default.
|
| t1
| Uses the entire line as a T1 line.
|
| e1
| Uses the entire line as an E1 line.
|
| isdn-fractional
| Divides an ISDN line into groups specified by the set Line0 group command (see page 15-10).
|
| fractional
| Divides a channelized T1 or E1 line into groups specified by the set Line0 group command (see page 15-10).
|
| inband
| Sets the line for in-band signaling for channelized T1 and E1. The signaling protocol for channelized T1 is specified by the set Line0 signaling command (see page 15-15). For channelized E1, use the set Line0 signaling mfr2 command (see page 15-16).
|
- You must first select a slot for configuration with the set view command before using this command.
- T1 and E1 lines might require an external clock signal provided either by the device that the PortMaster is connected to or by the telephone company network. Each Quad T1 and Tri E1 board uses the clock of the first active line port, starting with Line0, as its transmit clock that is shared among all the line ports. See the PortMaster 4 Installation Guide for more information about connecting T1 and E1 lines.
set Line0 clock
- This command specifies the clocking source for a synchronous line on a Quad T1 board.
set Line0 clock backplane|internal|external
Warning ¯ 
Do not set Line0 to internal if another line on the same Quad T1 board is configured with an active synchronous line set to external or backplane as a clocking source.
| Line0
| line0 , line1 , line2 , or line3 on a Quad T1 line board.
|
| backplane
| Sets Line0 to obtain its clock signal from the PortMaster 4 backplane. The backplane can receive its clocking from a T3 Mux board. You must also enable clocking on the backplane.
|
| internal
| Sets Line0 to obtain its clock signal from the Quad T1 board.
|
| external
| Sets the Quad T1 board to obtain its clock signal from the DS-1 line itself.
|
- You must first select a slot for configuration with the set view command before using this command.
- If you choose the backplane as a clock source, you must also use the set mux backplane-clock command to enable the T3 Mux board to provide clocking to the backplane.
Example
Command 7> set line0 clock backplane
line0 clocking changed to backplane
See Also
set mux backplane-clock - page 16-3
set Line0 encoding
- This command sets the encoding method used with T1 or E1 lines.
set Line0 encoding b8zs|ami|hdb3
| Line0
| line0 , line1, line2, or line3 .
|
| b8zs
| Bipolar 8-zero substitution. This is the default for T1 lines.
|
| ami
| Alternate mark inversion.
|
| hdb3
| High-density bipolar 3. This is the default for E1 lines.
|
- You must first select a slot for configuration with the set view command before using this command.
set Line0 framing
- This command sets the framing format used for the E1 or T1 line.
set Line0 framing esf|d4|crc4|fas
| Line0
| line0 , line1, line2, or line3 .
|
| esf
| Extended superframe. This is the default format for T1 lines.
|
| d4
| D4 framing, an alternative format for T1 lines.
|
| crc4
| Cyclic redundancy check 4. This is the default format for E1 lines.
|
| fas
| Frame Alignment Signal, an alternative format for E1 lines.
|
- You must first select a slot for configuration using the set view command before using this command.
set Line0 group
- This command allows you to set the channel rate for a group on a fractional T1 or E1 line to 56Kbps or 64Kbps.
set Line0 group Cgroup 56k|64k
| Line0
| line0 , line1, line2, or line3 .
|
| Cgroup
| Defined channel group from 1 to 32.
|
| 56k
| 56Kbps, typically used for D4 framing.
|
| 64k
| 64Kbps, used for framing types other than D4. This is the default.
|
- You must first select a slot for configuration with the set view command before using this command.
- Before setting the channel rate, you must first set the line type to fractional with the set Line0 fractional command, and create channel groups with the set Line0 group channels command.
Example
Command 1> set line0 group 0 56k
line0 group 0 channels set to 56000 bps
See Also
set Line0 fractional - page 15-6
set Line0 group channels - page 15-10
set Line0 group channels
- This command allows you to divide an ISD PRI line, T1 line, or E1 line into groups that function as synchronous ports.
set Line0 group Cgroup channels Channel-list
| Line0
| line0 , line1, line2, or line3 .
|
| Cgroup
| Group number from 1 to 32 that designates a port number on each ISDN line, T1, or E1 line, or none to unassign channels.
|
| Channel-list
| Space-separated list of one or more channel numbers, from 1 through 24 for T1, or 1 through 30 for E1. The channel numbers do not have to be contiguous.
|
- You must first select a slot for configuration with the set view command before using this command.
- To use channel groups, you must first set the line type to fractional or isdn-fractional with the set Line0 command.
- To remove a group number from a line, enter the command set Line0 group without any arguments.
- To allocate channels 1 through 4 of Line0 to group 2 to function as 256Kbps synchronous port 2, and to set the channels to a channel rate of 64Kbps, use the following commands:
Command 1> set line0 fractional
Command 1> set line0 group 2 channels 1 2 3 4
Command 1> set line0 group 2 64k
Command 1> save all
Command 1> reset slot1
- Now configure the channel group 2 as you would any PortMaster synchronous port.
- set Line0 fractional - page 15-6
set Line0 group 64k - page 15-9
set Line0 imt
- This command sets the line connected to an intermachine trunk (IMT) for SS7 signaling.
set Line0 imt
| Line0
| line0 , line1, line2, or line3 .
|
| imt
| Sets the line connected to an intermachine trunk (IMT) for SS7 signaling.
|
- The PortMaster 4 supports SS7 signaling on ComOS 4.1 and later releases.
- You must first select a slot for configuration with the set view command before using this command.
- To configure SS7 signaling, you must also use the set imt command to specify the SS7 gateway address and gateway port, the PortMaster 4 local port, and the switch type. For more information about configuring SS7 signaling, see the PortMaster 4 Configuration Guide .
- If the switch type is 1a , you must configure the line for robbed bit signaling using the set Line0 signaling rbs command.
- To save and activate the new settings, you must save all, set slot off and set slot on for every slot.
- Command> set view 0
View changed from 4 to 0
- Command 0> set line1 imt
line1 changed to imt
set Line0 on|off
- This command toggles a T1 line or E1 line on or off.
set line0 on|off
| Line0
| line0 , line1, line2, or line3 .
|
| on
| Enables the transmitter on the specified line. This is the default.
|
| off
| Enables the transmitter on the specified line.
|
- The PortMaster 4 supports this command on ComOS 4.1 and later releases.
- A system administrator can use this command to busy out a T1 or E1 line by turning off the transmitter.
- When a line is disabled, the show Line0 command displays the status as ADMIN and displays a yellow alarm. Disabling a line causes the switch to advance to the next line in the hunt group, if configured.
- The save all command does not save the line with the transmitter disabled.
set Line0 loopback
- This command sets a T1 or E1 line for local network loopback.
set Line0 loopback on|off
| Line0
| line0 , line1, line2, or line3 .
|
| on
| Turns on local network loopback.
|
| off
| Turns off local network loopback.
|
- This command is used for telephone line testing purposes.
set Line0 nfas
- This command sets non-facility associated signaling (NFAS) parameters for a T1 line.
set Line0 nfas primary|secondary|slave|disabled Identifier Group
| Line0
| line0, line1, line2, or line3.
|
| primary
| Sets the line as the primary D channel for the specified group.
|
| secondary
| Sets the line as the backup D channel for the specified group
|
| slave
| Sets the line as a slave interface--all channels on the line are B channels.
|
| disabled
| Disables NFAS on the interface.
|
| Identifier
| Integer between 0 and 19 that uniquely identifies a T1 interface in an NFAS group.
|
| Group
| Group number--a common number assigned to all the T1 lines belonging to the same NFAS group. Group is an integer between 1 and 99.
|
- You must first select a slot for configuration with the set view command before using this command.
- NFAS is a service provided by the telephone company allowing a single D channel to provide signaling for a group of ISDN PRI lines or interfaces, so that the channels normally used for signaling on the remaining PRIs can be used as B channels.
- The PortMaster 4 supports NFAS on ComOS 4.1 and later releases. Up to 20 PRIs can be grouped together to share a primary D channel with or without D channel backup (DCBU).
- The T1 interfaces of any single Quad T1 board must belong to the same NFAS group. Once NFAS is enabled on a Quad T1 board, all T1 lines can no longer run in the standard PRI configuration of 23 B channels and 1 D channel. If only one T1 interface is available on a Quad T1 board, it can belong to an NFAS group by itself.
Note ¯ Setting multiple pairs of primary and backup D channels in the same group causes NFAS to break.
- When the primary D channel fails, the backup D channel is enabled but the active calls on the lines serviced by the failed D channel are terminated. No calls are saved during the switch to the backup D channel. When the primary D channel is restored, it acts as a backup to the currently active D channel.
- NFAS is serviced by UDP port 1650.
- To debug NFAS events, use the set debug nfas command. For more information about configuring your PortMaster 4 for NFAS, refer to the PortMaster 4 Configuration Guide.
Note ¯ 
You must use the save all and reset slot commands for the new settings to take effect.
- In the following example, Line0 of the Quad T1 board occupying slot 0 is configured as the primary D channel, Line1 is configured as the backup D channel, and Line2 and Line3 are set as slaves with only B channels.
Command> set view 0
|
View changed from 4 to 0
|
|
|
Command 0> set line0 nfas pri 0 4
|
New NFAS parameters will be effective after next reboot
|
|
|
Command 0> set line1 nfas sec 1 4
|
New NFAS parameters will be effective after next reboot
|
|
|
Command 0> set line2 nfas sla 2 4
|
New NFAS parameters will be effective after next reboot
|
|
|
Command 0> set line3 nfas sla 3 4
|
- set debug nfas - page 14-10
set Line0 pcm
- This command sets the companding method used for digitized audio signals.
set Line0 pcm u-law|a-law
| Line0
| line0 , line1, line2, or line3 .
|
| u-law
| Default method of "companding"--compressing and expanding--the amplitude of audio signals over T1 PRI lines.
|
| a-law
| Default method companding the amplitude of audio signals transmitted over E1 PRI lines.
|
- You must first select a slot for configuration with the set view command before using this command.
- This command is needed only when you are using digital modems in the PortMaster. The default settings must not be changed unless your PRI service provider instructs you otherwise.
- ComOS releases 3.8 and later support the V.90 modem protocol for client modems with Lucent, Rockwell, and 3Com chipsets dialing in, and for both a-law and u-law companding. V.90 is not supported for dial-out modems. The maximum analog dial-out speed is 33600bps for K56flex and V.90 protocols.
set Line0 signaling
- This command sets the in-band signaling protocol and the in-band call options used with channelized T1.
set Line0 signaling fxs
| Line0
| line0 , line1, line2, or line3 .
|
| fxs
| Foreign exchange station (FXS) loop start protocol.
|
| immediate
| E & M immediate start protocol.
|
| wink
| E & M wink start protocol, an option for use with channelized T1 lines. This is the default.
|
|immediate|wink
- You must first select a slot for configuration with the set view command before using this command.
Note ¯ 
You must first set Line0 to in-band signaling using the command set line0 inband before using the command set Line0 signaling .
- set Line0 inband - page 15-6
-
set Line0 signaling r2generic|mfr2
- This command sets in-band signaling to multifrequency R2 signaling (MFR2) for a channelized E1 line.
set Line0 signaling r2generic|mfr2 Profile
| Line0
| line0 , line1, line2, or line3 .
|
| r2generic
| Generic R2, the default when Line0 is set for in-band signaling. Sets in-band signaling to MFR2 but without tone signaling.
|
| mfr2 Profile
| One of the following channelized E1 in-band signaling profiles:
|
|
| 0
| ITU-T standard: Argentina, Saudi Arabia, and other countries.
|
|
| 1
| Mexico.
|
|
| 2
| Brazil and Tunisia.
|
|
| 3
| Venezuela.
|
|
| 4
| Mexico. Profile 4 is a subset of profile 1 and is used with switches that do not support caller ID. This profile can be used in Mexico wherever profile 1 is used, but the reverse is not true.
|
- You must first select a slot for configuration with the set view command before using this command.
- A number profile can apply to different countries, and a country can have more than one MFR2 profile available.
- Use the show line0 command to display the type of in-band signaling used and the MFR2 profile selected.
-
ComOS 4.1 and later releases supports the call-check feature with MFR2 signaling.
- For more information on configuring for MFR2 signaling, refer to the PortMaster 4 Configuration Guide.
Note ¯ 
You must first set the line to in-band signaling using the command set Line0 inband before setting the line to MFR2 signaling.
Examples
Command 1> set line0 signaling mfr2 0
line0 changed to inband signaling, MFR2
Command 1> set line1 signaling r2gen
line1 changed to inband signaling, R2MF generic
See Also
- set call-check - page 3-7
set Line0 inband - page 15-6
show Line0 - page 15-21
set Line0 signaling rbs|norbs
- This command sets the PortMaster 4 to recognize the IMT as a line with twenty-four 56k bit channels using robbed bit signaling.
set Line0 signaling rbs|norbs
| Line0
| line0 , line1, line2, or line3 .
|
| rbs
| Sets the PortMaster to recognize robbed bit signaling on the IMT line. Use this command only if the IMT is connected to a 1a switch.
|
| norbs
| Supports all other switch types. This is the default.
|
Usage
The PortMaster 4 supports this command on ComOS 4.1 and later releases.
- You must first select a slot for configuration with the set view command before using this command.
- To save and activate the new settings, you must save all , set slot off , and set slot on for every slot.
- Command> set view 0
View changed from 4 to 0
Command 0> set line0 signaling rbs
line0 signaling changed to rbs
See Also
- set imt-parms - page 15-4
set Line0 imt - page 15-11
show imt - page 15-19
set M0
- This command makes the digital modems on the PortMaster 4 available or unavailable.
set M0 on|off
| M0
| Any modem number from m0 to m95 . Changes to the default setting must be made to individual modems.
|
| on
| Makes the modem available for use. This is the default.
|
| off
| Busies the modem so it is unavailable.
|
- The PortMaster 4 supports this command on ComOS 4.1 and later releases.
- You must first select a slot for configuration with the set view command before using this command. The digital modems on Quad T1 board are numbered from M0 to M95, for a maximum of 96 modems. Any user on a modem that is busied is disconnected.
Note ¯ 
Digital modems do not require any configuration or initialization string.
- set location analog - page 11-4
set S0 directory
- This command sets a telephone number for an individual port when the line is configured as ISDN B channels.
set S0 directory Number
| S0
| One of the virtual ISDN PRI ports.
|
| Number
| Access telephone number.
|
- Normally a PRI line has a single telephone number. However, when the line is set up as ISDN B channels, this optional command can be used to set a telephone number for an individual port. If set, it allows you to identify the circuit telephone number associated with a specific ISDN port.
- BACP and BAP Support. ComOS releases 3.8 and later support the Bandwidth Allocation Control Protocol (BACP), according to RFC 2125. Because BACP and the Bandwidth Allocation Protocol (BAP) are both negotiated protocols, no commands are necessary to turn them on. The only requirement for the use of BAP and BACP is setting directory numbers on the serial ports so the PortMaster can offer a second number to the client dialing in.
- BACP supports local exchange telephone numbers. If a long-distance BACP user is configured to dial a local exchange telephone number, the PortMaster checks the RADIUS Called-Station-Id when the second channel is requested. To implement this configuration, do not set the directory numbers.
show imt
- This command displays settings for a slot configured for SS7 signaling.
show imt
- You must first select a slot using the set view command before using the show imt command.
- Command 0> show imt
- Gateway IP address: 198.36.134.27, gateway port: 10000, local port: 7000
Switch type: 1a
- set imt-parms - page 15-4
set Line0 imt - page 15-11
set Line0 signaling rbs - page 15-17
show isdn
- This command displays the status of the ISDN PRI ports.
show isdn [dNumber |S0
| Number
| D channel number.
|
| S0
| Serial port number associated with the PRI port.
|
]
- You must first select a slot using the set view command before using this command.
- The PortMaster 4 supports the show isdn command on ComOS 4.1 and later releases.
- To display comprehensive information about an ISDN port, enter the command with the active D channel number or the serial port number associated with the PRI port.
Example
Command 0> show isdn
| D
| Ports
| State
| L1 L2
| Change
| init
| Up
| Down
|
| --
| -------
| ----------
| -------
| -----
| ----
| ----
| -----
|
| 0
| S0-S22
| UP
| Active
| 1days
| 3
| 1
| 2
|
| 1
| S24-S46
| UP
| Active
| 1days
| 3
| 1
| 2
|
| 2
| S48-S70
| UP
| Active
| 1days
| 3
| 1
| 2
|
| 3
| S72-S94
| UP
| Active
| 1days
| 3
| 1
| 2
|
Explanation
| D
| D channel.
|
| Ports
| ISDN port numbers supported by the D channel PortMaster.
|
| State
| D channel status.
|
| L1 L2
| Line status.
|
| Change
| Time since last change in status.
|
| Init
| Number of times a network termination 1 device (NT1) has attempted to bring up a link.
|
| Up
| Number of times a link has gone to Up status.
|
| Down
| Number of times a link has gone to Down status.
|
show Line0
- Shows the status of a E1 or T1 line on a PortMaster.
show Line0
| Line0
| line0 , line1, line2, or line3 .
|
- Line1 is configured as an ISDN PRI line
Command 1> show line1
|
|
|
---------------------- line1 - E1 Primary Rate ISDN --------------------
|
Status: DOWN F3
|
Framing: FAS
|
Encoding: HDB3
|
PCM: a-law
|
|
Violations
|
|
|
|
-------------------------------
|
|
|
Bipolar
|
1209159
|
|
|
CRC4
|
0
|
|
|
E-bit
|
0
|
|
|
FAS
|
|
|
.
T1 Examples
1. Line0 is configured as an ISDN PRI line.
| Command 1> show line0
|
|
|
| --------------------- line0 - T1 Primary Rate ISDN -------------------
|
| Status: UP
| Framing: ESF
| Encoding: B8ZS
| PCM: u-law
|
| Receive Level:
| +2dB to -7.5dB
|
|
| Alarms
|
| Violations
|
|
| ------------------------------------
| ---------------------------------
|
| Blue
|
0
| Bipolar
|
102
|
| Yellow
|
0
| CRC Errors
|
1
|
| Receive Carrier Loss
|
0
| Multiframe Sync
|
9
|
| Loss of Sync
|
0
|
|
2. Line0 is configured for in-band signaling--channelized T1
| Command 1> show line0
|
|
|
| --------------------- line0 - T1 Inband DS0 ----------------------------
|
| Status: UP
| Framing: ESF
| Encoding: B8ZS
| PCM: u-law
|
| Signaling: Trunk E&M wink start
| Options: inbound calls only
|
| Receive Level:
| +2dB to -7.5dB
|
|
| Alarms
|
| Violations
|
|
| ------------------------------------
| ---------------------------------
|
| Blue
|
0
| Bipolar
|
5
|
| Yellow
|
0
| CRC Errors
|
0
|
| Receive Carrier Loss
|
0
| Multiframe Sync
|
2
|
| Loss of Sync
|
0
|
|
.
ISDN Example
- Line0 is configured as a fractional ISDN line with one group of seven channels.
Command 1> show line0
|
|---|
---------------------- line0 - T1 ISDN-Fractional ---------------
|
Status: UP
| Framing: ESF
| Encoding: B8ZS
| PCM: u-law
|
Channel
|
|
|
|
Group
| Speed
| Channels
|
|
------------------------------------------------------------
|
1
| ISDN
| 1 2 3 4 5 6 7
|
|
Receive Level:
| +2dB to -7.5dB
|
|
Alarms
|
| Violations
|
|
-----------------------------
| -----------------------------
|
Blue
| 0
| Bipolar
| 0
|
Yellow
| 0
| CRC Errors
| 0
|
Receive Carrier Loss
| 0
| Multiframe Sync
| 0
|
Loss of Sync
| 0
|
|
|
Explanation
| Status
| Status of T1, E1, or ISDN line.
|
|
F State--E1 only
(F3 in example)
| PRI layer 1 state at the user side of the interface. Range: F0 to F6.
|
|
|
| F0 --Power off, no signal.
|
|
|
| F1 --Operational.
|
|
|
| F2 to F5 --Failure conditions FC1 to FC4.
|
|
|
| F6 --Power on, no signal.
|
|
| Framing
| Framing format in use.
| See page 15-8.
|
| Encoding
| Encoding method in use.
| See page 15-8.
|
| PCM
| Pulse code modulation method in use.
| See page 15-14.
|
| Channel Group
| Channel group number.
| See page 15-10
|
| Speed
| Connect speed.
|
|
| Channels
| Channel numbers.
| See page 15-10.
|
| Signaling
| Type of in-band signaling in use
| See page 15-15 and page 15-15.
|
| Options
| In-band signaling options in use.
| See page 15-15.
|
| Receive Level
| Signal strength on the line.
|
|
| E1 Alarms
| Remote Alarm--Remote is in alarm state.
Receive Carrier Loss--Loss of carrier signal.
Loss of Sync--Device loss of synchronization signal.
|
| T1 and ISDN Alarms
| Blue--Unframed all ones (1s) signal.
Yellow--D4 bit2, D4 12th F-bit, or extended superframe (ESF) mode (framing) signal.
Receive Carrier Loss--Loss of carrier signal.
Loss of Sync--Device loss of synchronization signal.
|
| E1 Violations
| Bipolar--Consecutive bipolar violations of same polarity.
CRC4--Errors in the CRC4 code words (CRC4 framing).
E-bit--CRC4 error bits.
FAS bit--Errors in the frame alignment signal (FAS) code words (FAS framing).
|
| T1 Violations
| Bipolar--Consecutive bipolar violations of the same polarity.
CRC Errors--Errors in CRC6 code words (ESF framing), or in the Ft framing bit position (D4 framing).
Multiframe Sync--Multiframes received out of synchronization.
|
-
show M0
- This command shows the status of a digital modem on a PortMaster.
show M0
| M0
| The digital modem number.
|
-
show modems
- This command displays the status of all digital modems on a PortMaster.
show modems [String]
| all
| Shows the summary of the modems of the board or module occupying the specified slot.
If the view is set to the manager module, shows a summary of all the modems.
|
String
| Displays modem information matching the specified string when the view is set to the manager module.
|
- To display modem information about a specific line board of a PortMaster 4, you must first use the set view command.
- The following example is from a PortMaster 4 T1 line board in slot 1.
|
|
|
|
|
|
|
|
|
|
| Command 1> show modems
|
|
|
|
|
|
| Mdm
| Port
| Status
| Speed
| Compression
| Protocol
| Calls
| Retrain
| Disconnect
|
| ----
| ----
| -------
| --------
| -----------
| --------
| ------
| -------
| ----------
|
| M0
| S2
| ACTIVE
| 28800
| V42BIS
| LAPM
| 12
| 0
| NORMAL
|
| M1
| S3
| ACTIVE
| 28800
| V42BIS
| LAPM
| 5
| 0
| NORMAL
|
| M2
| S4
| ACTIVE
| 28800
| V42BIS
| LAPM
| 7
| 0
| NORMAL
|
| M3
|
| READY
| UNKNWN
| NONE
| NONE
| 0
| 0
| NORMAL
|
| M4
|
| READY
| UNKNWN
| NONE
| NONE
| 0
| 0
| NORMAL
|
| M5
|
| READY
| UNKNWN
| NONE
| NONE
| 0
| 0
| NORMAL
|
| .
|
|
|
|
|
|
|
|
|
| .
|
|
|
|
|
|
|
|
|
| .
|
|
|
|
|
|
|
|
|
| M95
|
| READY
| UNKNWN
| NONE
| NONE
| 0
| 0
| NORMAL
|
Explanation
| Mdm
| Digital modem number.
|
| Port
| PortMaster port assignment.
|
| Status
| ACTIVE
| The modem is in use.
|
|
| READY
| The modem is available for use.
|
|
| ADMIN
| The modem has been busied out.
|
|
| TEST
| The modem is under test.
|
|
| DOWN
| The modem is not available.
|
| Speed
| Connect speed in bits per second.
|
| Compression
| Compression standard used.
|
| Protocol
| Data link layer protocol used.
|
| Calls
| Number of calls since the last PortMaster reboot.
|
| Retrain
| Number of times the modem changes speed (retrains) due to a change in line quality since the last PortMaster reboot.
|
| Disconnect
| Type of modem disconnection: normal or lost carrier.
|
show nfas
- This command displays NFAS information for the selected Quad T1 board and the neighboring Quad T1 boards in the same NFAS group.
show nfas
- The PortMaster 4 supports NFAS on ComOS 4.1 and later releases.
- To view information for NFAS, you must first select a board using the set view command.
Example
| Command 1> show nfas
|
|
|
|
|
| N
| group
| line0
| line1
| line2
| line3
| state0
| state1
| state2
| state3
|
| -
| ----
| ------
| -------
| -----
| ----
| -------
| -----
| ------
| ---
|
| 1
| 5
| 2(SEC)
| 1(SLA)
| X
| X
| STANDBY
| UP
|
|
|
| 9
| 5
| 0(PRI)
| X
| X
| X
| IN-SERV
|
|
|
|
| 6
| 56
| 0(PRI)
| 1(SLA)
| 2(SEC)
| X
| NO-SERV
| DOWN
| NO-SERV
|
|
Explanation
N
|
Slot number of a Quad T1 board belonging to an NFAS group.
|
group
|
Group number--integer between 1 and 99.
|
line0, line1, line2, or line3
|
Interface number of the T1 line and the type of NFAS service it provides:
|
| PRI
|
Line is set as the primary D channel servicing all interfaces in the NFAS group.
|
| SEC
|
Line set as the backup D channel interface.
|
| SLA
|
Slave interface.
|
| X
|
Line is not active or is not set for NFAS.
|
state0 , state1 , state2 ,or state3
| Displays the status of the lines in the NFAS group:
|
| STANDBY
|
Line is set as a D channel and is in standby mode.
|
| IN-SERV
|
Line is the active D channel.
|
| NO-SERV
|
Line is configured but not functional.
|
| UP
|
Slave line is functional.
|
| DOWN
|
Slave line is configured but is not functional.
|
See Also
- set Line0 nfas - page 15-13
- set debug nfas - page 14-10
-
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