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5 BRI Frequently Asked Questions and Request For Enhancement
Frequently Asked Questions Index
Question List
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- Are there cause codes for improved debugging?
- A: With ComOS version 3.3.1, use the command "set debug isdn on"
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- Can the last cause code be added to the port status?
It is suggested that you add the last cause code to the IDLE port status. For example, a
call attempt from a port which tried to dial a location that received a "busy"
signal would be "IDLE -017". On the other hand, a dial attempt that failed
because there were no circuits/channels available would be "IDLE-034". This also
provides an ability to note that things are working properly with "IDLE-016"
demonstrating that normal call clearing occurred. In fact, one could argue that these
codes with port number should be logged with all the other syslog activities with dial out
on the PortMaster. - A: ComOS version 3.3.1 has this feature. Use the command "show <port
number>".
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- What does "set debug isdn on" display?
- A: Displays all the ISDN interaction with a BRI and the Telco
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- How do I know if my BRI is properly connected to the
Telco?
- A: If the LED is solid green for the BRI, then you have a good physical
connection. For Example: Check the port with command "show s10" and you should
see the following 2:
Modem Status: DCD- CTS+ TELCO+ NT1+
The port status should be IDLE. This means that the built in NT1 circuitry is good and
that a proper connection to the Telco exists. Note: when the directory number is
set, it will activate the signaling on the d-channel.
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- It is unclear to me if I have to duplicate an ISDN
configuration for a single BRI on two ports. If I plug in an ISDN on the first BRI port,
do I have to duplicate the configuration on the second port?
- A: . BRI separates into 2 ports on the PortMaster. Each port has to be configured
individually, normally with a SPID and a directory number. [Directory numbers are
required]
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- What are the switch types that we support and how are they
set up?
- A: At this time we support National ISDN 1 (NI-1), AT&T 5ESS Custom 1 &
Point to Point, and DMS-100.
Setting your switch type and what it means:
1) DMS100 setting only with DMS switch using DMS 100 provisioning.
For Example:
Command> set isdn-sw dms
ISDN switch type set to DMS-100
2 ) 5ESS setting only with 5ESS Custom Multipoint provisioning.
For Example:
Command> set isdn-sw 5ess
ISDN switch type set to ATT-5ESS
3) NI-1 in all other cases.
For Example:
Command> set isdn-sw ni-1
ISDN switch type set to NI-1
4) 5ESS setting only with 5ESS Point-to-Point provisioning.
For Example:
Command> set isdn-sw 5ess-ptp
ISDN switch type set to 5ESS-PTP
Note: If you reset the switch, then the PortMaster must be rebooted.
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- Is there an X-GUI (PMconsole) version available for ISDN ?
- A: Yes.
For ISDN:
Edit | Global allows switch type selection
View | Ports presents an ISDN status option. This option locks out all other view
displays. Also, when viewing Active configuration, ISDN ports do not display speed, flow
control, etc. Edit ISDN Port allows SPID and Directory Number selection
General: (features are dependent on ComOS version. ComOS 3.3.1 supports all features
listed below)
Edit | Port shows Modem Name READ ONLY.
Status line displays PortMaster up time.
Edit | Ethernet[0|1] shows MAC Address READ ONLY.
Edit | RADIUS allows specification of primary and secondary accounting server.
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- How do I program my ISDN ports for dial-in service?
- A: Program them as you would any other serial port, adding a SPID and directory
number provided by your telephone service provider.
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- What is the correct entry for a SPID and directory number?
- A: The SPID is a unique number that identifies an individual b-channel. It is
assigned by the Telco when you order an ISDN line. The directory number should have the
area code and the phone number (omit dashes separating area code, prefix and line number).
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- What is the reason I should consider using 5ESS
Multi-point over PTP?
- A: It is more economical.
In many areas it is significantly less expensive and allows better control of hunt
groups.
The rule of thumb is get NI-1 if it available unless you know the reason
(tariff/capability) you want Custom service. It is, however, likely that you will get
Custom service with Centrex type service from most RBOC's.
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- What are the SPID formats by Telco switch type?
- A: Here's a partial answer.
AT&T 5ESS
Point-to-Point: no SPID needed
Multipoint custom: 01+<7 digit local number>+0 (one for each B channel)
NI-1: 01+<7 digit local number>+TID
(TID is a 2-digit number from 00 to 62, usually 00) Nortel DMS-100
default: <3 digit area code>+<7 digit local number>+<suffix>
(the suffix is usually '1' for B1 and '2' for B2)
NI-1: same as default but <suffix> is the two-digit TID (see 5ESS TID)
Siemens EWSD:
Whatever the telco tells you to put in.
Note: We do not support the EWSD switch type unless it's set for NI-1
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- What is the function of a directory number?
- A: The directory number is required for INCOMING calls only. We use this to match
the b- channel with the port. A SPID is associated with the b- channel and the directory
number is associated with the port. The two come together when an call originates on
a specified b- channel enabling the PortMaster to associate the call with the correct
port.
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- Do you support an "S/T" interface?
- A: We have products for both the U and S/T interfaces.
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- Does Simple Network Management (SNMP) work with your
product?
- A: That feature can be enabled/disabled as follows:
Command> set snmp on
Enabling SNMP agent
Command> set snmp read public
SNMP read community changed to: public
Command> add snmp reader any
New SNMP reader ANY successfully added hostname% snmpstatus lab-pm2e
[192.2.200.1]=>[Lucent PortMaster PM-2e ComOS 3.1.4] Up: 1 day, 8:11:52 Recv/Trans
packets: Interfaces: 497805/743870 | IP: 486343/743749
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- What is the pin out information for the RJ45 jacks?
- A: Pin out information is as follows:
1-3 Not Used
4-5 ISDN
6-8 Not Used
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- What are the various BRI LED flashing states and what do
they mean?
- A: See the Comm Server H/W Installation Guide for more information.
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- Can the debug output be activated within the GUI
(PMconsole)?
- A: Not at this time. We are considering this RFE
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- Is the SPID required for 5ESS (Point to Point )P-T-P
service?
- A: No.
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- Does the 5BRI time out if we do not get a TERMINATE
REQUEST ACK in a reasonable amount of time and does it clear the port correctly?
- A: Yes and yes.
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- Will the new ISDN products support load balancing?
- A: Yes and they will also do Multilink PPP.
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- Can dial on demand be used 3 ISDN?
- A: Yes.
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- Can Telepath be used and if so, does it support data
compression before the information is sent to the modem?
- A: No, since Telepath is a DOS based product.
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- Can you convert from sync connections to async connections
on the ISDN BRI?
- A: We automatically sense the in bound connection and run sync or async as
required.
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- Does the PortMaster support RFC 1597, which basically
takes illegal IP addresses and transfers them into legal ones?
- A: No.
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- Can I swap the SPIDs between the bearer channels on a BRI?
- A: Yes. They are interchangeable.
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- What is the reason my B channel rings busy when I
place a voice call to it?
- A: The circuit has been provisioned for data only; however, a data call should
work fine.
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- The Telco gave me a single number for my 5ESS
Point-To-Point BRI. What is this number for?
- A: Since SPIDs are not required, this number should refer to your directory
number and should be applied to both channels of the BRI.
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- Are there any lower level ISDN debug commands available?
- A: Yes, and they are as follows:
- Command> set debug isdn_d on (off)
Command> set debug isdn_m on
(off)
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- Do you do AMI signaling?
- A: No. We use 2B1Q.
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- What is the function of Terminal Endpoint Identifier
(TEI)?
- A: TEI is the Terminal Endpoint Identifier. Since a switch can communicate with
many devices on a BRI, each device needs a separate TEI so the switch can distinguish the
individual connection.
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- What determines the connection rate?
- A: The PortMaster will automatically sense the connect speed from the switch and
adjust between 64000 and 56000 accordingly. Apparently the switch will arrange a 64K
connection if the call is placed with the area code and a 56K connection if no area code
is specified.
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- Can you force a certain connection rate for an outgoing
call?
- A: Yes. For example to force a 56K connection use:
Command> set s10 speed 56000
or, to force a 56K dial out:
Command> AT&N56DT5551212
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- What is the reason my ATT-5ESS Multipoint hunt group not
working properly?
I am able to dial in to the first number of the hunt group, but if I place a second call
to the hunt group number I get:
S12: Sending Refuse Call - No Ports
S12: Sending Refuse Call - No Ports
S12: Received Disconnect Internetworking Unspec
S12: Received Call Clear On the dialing end I get:
atdt919166766384
Dialing...
Call Terminated - No Circuit Available (34)
NO CARRIER
However, I seem to be able to dial in directly to the port just fine.
- A: Change the max number of circuits per SPID from 2 to 1. The default
configuration on Pac Bell 5ESS Multipoint is to assign one voice and two data channels per
"device" (meaning per SPID). Multipoint gives two SPIDs. In a hunt group, what
happens is that the first call comes in and grabs a channel using the first SPID, then the
second call comes in and grabs the second data channel off the first SPID. Then, the third
call comes in, and tries to grab a channel off the second SPID and doesn't find one. Pac
Bell figured out is that they need to configure a 1 Voice 1 Data configuration.
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- I have installed my ISDN board as a second MOD board in
my PM2E but I am not able to see any of the ports?
- A: The first MOD board should have the jumper across pins 1 & 2 and the
second MOD board should have the jumper set across pins 2 & 3. Also be sure that you
have upgraded to ComOS 3.3.1 or higher and rebooted.
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- Under what conditions is the PortMaster supposed to
return "Calling-Station-Id" information?
- A: If the circuit is set up with caller ID. When the call is made, the RADIUS
packet will be filled in as you would expect.
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- Can Multilink PPP work across b-channels on a PortMaster?
- A: Absolutely. You can run Multilink PPP with any b- channels in a single
chassis.
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- How do I configure the PortMaster to dial out for
Multilink PPP eg. to Ascend Pipeline?
- A: Perform the following steps to configure the PortMaster.
1. Add a location in the PortMaster location table as
follows: (add a location like you normally would but
without any CHAT script)
Command> set loc aspot username Mtest1
New username successfully set for location aspot
Command> set loc aspot password Mtest1
New password successfully set for location aspot
Command> set loc aspot telephone 1234567
New telephone successfully set for location aspot
Command> set loc aspot multilink on
aspot multilink changed from off to on
Command> show loc aspot
Location: aspot Type: Manual
Destination: XXX.YYY.ZZZ.AAA Netmask: 255.255.255.0
Protocol: PPP Options: Routing,
Compression, Multilink
Group: 2 Max Ports: 2
Idle Timeout: 0 minutes High Mark: 0 bytes
Mtu: 1500 Async Map: 00000000
Username: Mtest1 Password: Mtest1
Telephone: 1234567
2. Setup your port(s) for network dial out in a dail group
Command> show s10
--------- Current Status - ISDN Port S10 ---------------
Status: IDLE
Input: 0 Abort Errors: 0
Output: 0 CRC Errors: 0
Pending: 0 Overrun Errors: 0
TX Errors: 0 Frame Errors: 0
Modem Status: DCD- CTS+ TELCO+ NT1+ Disconnect:
Active Configuration Default Configuration
Default Configuration
Port Type: Netwrk Netwrk (Dial Out)
Line Speed: 64000 64000
Interface: Unassigned (SLIP,Listen (SLIP,Quiet)
Mtu: 0 1500
SPID: YYYYYYYYYYYYYY
Directory No: ZZZZZZZZZZ
Dial Group: 2
3. dial out
Command> dial aspot
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- What products does Lucent inter operate with using
Multilink PPP (per RFC 1717)?
- A: A partial list. To our knowledge we will inter operate with any device that
properly implements RFC 1717.
- Motorola BITSURFR PRO (Rev C firmware or better)
- 3Com Digital Impact (Rev 2.00d or better)
- Ascend Pipeline 25 (Rev 4.5+ or better)
- Ascend Pipeline 50 (Rev 4.5+ or better)
- Ascend Pipeline 400 (Rev 4.5ap17 or better)
- Ascend Max 4000 (Rev 4.5B)
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- Does Lucent have any products with a POTS (Plain Old
Telephone Service) interface?
- A: Yes, as of the release of the ISDN Office Router with one Analog (POTS) Port.
Respective BRI U interface (OR-U-AP) and ST interface (OR-ST-AP) models are
available.
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- Do Lucent products support STAC (or any other) data
compression algorithm?
- A: Yes, STAC is supported on the PM3.
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- I just installed my 5BRI board but I get
"NO-SERVICE" when I show the port as follows:
S10: Clearing Register Request
S10: Register Failed - Telco Not Responding
S10: Received Disconnect Ack Temporary Failure
Here is the configuration:
Command> sh s10
-----------Current Status - ISDN Port S10----------------
Status: NO-SERVICE
Input: 0 Abort Errors: 0
Output: 0 CRC Errors: 0
Pending: 0 Overrun Errors: 0
TX Errors: 0 Frame Errors: 0
Modem Status: DCD- CTS+ TELCO+ NT1+
Disconnect: Temporary Failure
Active Configuration Default Configuration
(* = Host Can Override)
Port Type: Login/Netwrk Login/Netwrk (Dial In)
(Security)
Login Service: PortMaster PortMaster
Line Speed: 64000 64000
Hosts: default
Terminal Type:
Login Prompt: Some1Net login:
Idle Timeout: 30
SPID: 0155512120
Directory No:
Dial Group: 0
ISDN Switch Type: ATT-5ESS
- A: The user actually had a switch type of AT&T 5ESS Point to Point and did
not have the directory number set. They had set the SPID instead. To correct this, perform
the following commands:
Command> set isdn-switch 5ESS-PTP
Command> set s10 spid
Command> set s10 dn 1235551212
With Point to Point (PTP), the directory number is the SAME for both channels on a
BRI. Therefore, port S11 must also be set the same as port S10. Note, the directory
number has the "area code" and the local number without the prefix 01 or the
suffix 0. This was useable in Pacifc Bell territory and may not be useable in other areas.
Also, no SPID is required for either channel.
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- Can I use "any" PMinstall to install ComOS for
use with ISDN hardware?
- A: No. You will need PMinstall 3.3.1 or higher.
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- Will my old ComOS recognize the ISDN ports?
- A: No. You must have ComOS 3.3.1 or later installed and your PortMaster has to be
rebooted afterwards.
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- Do I need to actually order a separate number for each 64k
in order for two users dialing in to a single BRI?
- A: No. Each BRI has 2 B-channels which are considered to be 2 separate lines
thus, you can have up to two 64K calls simultaneously on a single BRI.
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- Does Lucent ISDN equipment allow data over voice calls
(i.e.. DOSBR)?
- A: Yes. Please be sure that your PortMaster is running ComOS 3.3.1 or later.
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- Are there extensions to the high density cable?
- A: No. We provide 1-25' cable but you could specify a 50' cable if required.
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- Will the 5BRI boards do clear channel Point to Point
Protocol (PPP), or do I have to use V.120 rate adaptation?
- A: Our equipment will auto detect either V.120 or sync-to-sync PPP.
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- Is there anything special required to handle ISDN users?
- A: No. However a number of new RADIUS attributes are now available to control
availability and improve accounting. Please see the Release Notes for ComOS 3.3.1
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- Can an ISDN port be used as network hardwired?
- A: No.
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- Must both b- channels be on the same BRI when use Multilink
PPP for a 128K connection? In other words, can one of the B channels be on the first b-
channel of port one on card one and the other b- channel be on the second b- channel of
port four on card two.
- A: This is OK. You can do Multilink PPP across any b- channel on any BRI within
the same chassis. There is no method to do Multilink PPP across multiple chassis at this
time.
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- Is it possible to get all three slots on the Lucent
PortMaster (TM) 2E with BRI and no async?
- A: Yes. We make the PortMaster 2ei with a base of 5BRI.
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- What is the reason my NI-1 hunt group is not working
properly?
- A: Try removing the directory numbers from each port.
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- Does the Lucent PortMaster (TM) support ISDN bridging to
connect to an Ascend Pipeline 25?
- A: No, we route, we do not bridge.
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- What is the reason I have 2 BRIs installed that say NO-SERVICE?
- A: There may be a wiring error. Wiring may be reversed or missing at the customer
premises or on the telephone company main frame. In the case of reversed wiring, swapping
the cables may correct the problem. Swapping the SPID and directory numbers between
them also may work. There may also be missing or incorrect translations at the telephone
company switch
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- What is the reason my new ISDN MOD board will not work in my older
PortMaster?
- A: Old main system boards (determined by S/N range) have a MOD board
incompatibility.
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- Which ISDN mod boards work with which PortMaster models?
- A:
PM Model MOD Board Rev Notes
PM2E A, B, C OK
PM2ER A, B do not use "W1" port
PM2ER C OK
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- What are the various "AT" commands and how are they used?
- A:
Command Notes
AT&N55 Set the channel to signal a voice call
AT&N56 Set the channel for a 56K data call
AT&N64 Set the channel for a 64K data call
For Example:
AT&N55&N56DT91510XXXYYYY
This places a voice call out of the centrex, long distance,
at 56K.
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- How can I confirm the capability of my BRI port to ensure that it
works correctly with the Telco now that it is "Idle"?
- A: Refer to the following procedure:
1) telnet to the PM and login:
telnet isdn-todd
Trying 192.2.200.32 ...
Connected to isdn-todd.
Escape character is '^]'.
ComOS - Lucent PortMaster
login: !root
Password:
Command> version
Lucent Technology PortMaster Version 3.3.1
System uptime is 7 hours 42 minutes
2) Note the directory numbers of each port on the BRI:
Command> show s20
-------------Current Status - ISDN Port S20 -------------
Status: IDLE
Input: 0 Abort Errors: 0
Output: 0 CRC Errors: 0
Pending: 0 Overrun Errors: 0
TX Errors: 0 Frame Errors: 0
Modem Status: DCD- CTS+ TELCO+ NT1+ Disconnect:
Active Configuration Default Configuration
Port Type: Login/Netwrk Login/Netwrk (Dial In & Out)
(Security)
Line Speed: 64000 64000
Terminal Type:
SPID: XXXYYYZZYY00
Directory No: XXXYYYZZYY
Dial Group: 20
Command> show s21
-------------- Current Status - ISDN Port S21 ------------
Status: IDLE
Input: 0 Abort Errors: 0
Output: 0 CRC Errors: 0
Pending: 0 Overrun Errors: 0
TX Errors: 0 Frame Errors: 0
Modem Status: DCD- CTS+ TELCO+ NT1+ Disconnect:
Active Configuration Default Configuration
Port Type: Login/Netwrk Login/Netwrk (Dial In & Out)
(Security)
Line Speed: 64000 64000
Terminal Type:
SPID: XXXYYYZZZZ01
Directory No: XXXYYYZZZZ
Dial Group: 20
3) Dial out of one and into the other:
Command> attach s20
Trying 192.2.200.1 ...
Connected - Escape character is '^]'.
at
OK
atdt91XXXYYYZZZZ
Dialing...
CONNECT 64000
host login: !root
Password:
command>
4) show the status of each of the ports:
Command> show sess
S20 - isdn-todd Device Out ESTABLISHED 1 0
S21 !root server Log/Net In COMMAND 0 0
- 5) try it the other way..use variations on the "AT" command set to determine
the capability, including experimentation with local dialing, centrex dialing, long
distance dialing.
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- What is the reason my Motorola BITSURFR PRO resets with Trumpet
2.1F?
- A: Unknown. One user said:
"I noticed that the (BITSURFR) dying as soon as any data started to flow. I should
have thought to lower the MTU since that is how we have solved modem problems like that,
but I turned OFF VanJacobsen CSLIP compression in Trumpet to fix the problem."
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