Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Administration For Network Connectivity Manual

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When adding an access endpoint with the ITC administered as restricted, its 
associated port can be a channel from a DS1 circuit pack with Zero Code Suppression 
administered as zcs or b8zs.
For an existing access endpoint, ITC can only be changed from restricted to 
unrestricted if its associated port is a channel of a DS1 circuit pack with its Zero Code 
Suppression field administered as b8zs. If the port is on a channel of a DS1 circuit 
pack with its Zero Code Suppression administered as zcs or b8zs, the end validation 
fails and the form submission is rejected. Without this end validation, a user could 
administer an access endpoint as unrestricted when in fact it is restricted, that is its 
associated port is a member of a DS1 circuit pack that uses ZCS data transmission.
DTE/DCEDesignates the interface defined by this data module as data terminal equipment or 
data communications equipment. 
Remote Loop-Around 
Test?Activates/deactivates remote loop-around testing. Valid Entries Data 
Module 
Ty p e sUsage
restricted
unrestrictedprocr-intf
pdm
netcon
analog-dmUse restricted except for wideband endpoints.
For unrestricted, only unrestricted 
transmission facilities (b8zs and hdb3) will be 
used to complete the call. An unrestricted 
facility is a transmission facility that does not 
enforce 1’s density digital transmission (that is, 
digital information is sent exactly as is).
For restricted, either restricted (ami-zcs or 
ami-basic) or unrestricted transmission facilities 
is used to complete the call. A restricted facility 
is a transmission facility that enforces 1’s 
density digital transmission (that is, a sequence 
of eight digital zeros is converted to a sequence 
of seven zeros and a digital one) via zcs coding 
on DS1 circuit pack.
Valid Entries Data Module 
Ty p e sUsage
dte/dceprocr-intf
x.25The DTE/DCE assignments must be 
opposites on the two ends of the connection. 
Valid Entries Data Module 
Ty p e sUsage
y/nprocr-intf
pdmSet to 
n unless testing.  
						

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Data Module — Type ethernet 
Use the ethernet data module type to define an interface between port 17 on the 
C-LAN board and the LAN. This data module associates a link number and extension 
number with the C-LAN port address. 
Common FieldsSee Common Data Module Fields (256) for descriptions of fields on this screen that 
are not listed below.
Network uses 1’s for 
broadcast addresses?This field allows you to specify whether the DEFINITY system is to use all 1’s or all 
0’s in the host ID to form broadcast addresses sent on the network by this C-LAN 
board. 
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                           DATA MODULE
    Data Extension: 2377            Name: ethernet on link 2  
Type: ethernet              Port: 01c0817_
              Link: 2 
Network uses 1’s for broadcast addresses? y
Valid 
EntriesUsage
y/n
default is yLeave the default (y) if the private network contains only 
DEFINITY switches and adjuncts. Set to n only if the network 
includes non-DEFINITY switches that use the 0’s method of 
forming broadcast addresses, as described below.
The binary form of a broadcast address is most commonly formed by 
combining the (sub)network portion with all 1’s for the host portion 
of the address. However, some non-DEFINITY older systems form 
broadcast addresses using 0’s instead of 1’s in the host portion. 
These systems usually recognize a received broadcast message as 
such only if the message address is formed using the 0’s method.
For a broadcast message received, the C-LAN board recognizes 
either form as a broadcast address and therefore accepts (looks at) 
the message. For a broadcast message sent, the C-LAN board uses 
the 1’s method if this field is set to y and uses the 0’s method if this 
field is set to n. 
If one or more nodes in the network is a non-DEFINITY switch that 
uses the 0’s method, then every DEFINITY switch in the network 
that wishes to broadcast to these 0’s-method switches must set this 
field to n. 
						

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Data Module — Type ppp 
Use the ppp data module for direct point to point TCP/IP connections between DCS 
nodes. This data module associates a link number and destination node with the port 
address and node name for the local node.
The fields on this form can be changed only when the corresponding port on the 
C-LAN circuit pack has been busied-out. 
Common FieldsSee Common Data Module Fields (256) for descriptions of fields on this screen that 
are not listed below.
Subnet MaskThe subnet mask is used to specify the network and host portions of the IP address for 
the C-LAN port that is identified in the Port field. The IP address is administered on 
the Node Names screen and is associated with the port location via the node name, 
which is a common field on the Node Names and ppp Data Module screens.
When a new ppp Data Module is created, the system populates the Subnet Mask field 
with one of three default subnet masks, depending on the node name you enter in the 
Node Names field. If the node name is associated with a Class C address on the Node 
Names screen, the Subnet Mask field is populated with the default Class C subnet 
mask, 255.255.255.0. Similarly, if the node name is associated with a Class A or 
Class B address on the Node Names screen, Class A (255.0.0.0) or Class B 
(255.255.0.0) default subnet masks automatically populate the Subnet Mask field.
The default subnet masks correspond to no subnetting. If you want to create 
subnetworks, you have the option to override the default subnet mask by entering a 
different subnet mask in the Subnet Mask field. If you enter a subnet mask, the system 
checks it for validity. For Class C addresses, there are 5 valid subnet masks. For Class 
B addresses there are 13 valid masks and for Class A addresses there are 21 valid 
masks.
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                          DATA MODULE
    Data Extension:  Name: _  ___
  BCC: 2
              Type: ppp
     COS: 1              Port: COR: 1              Link: _            TN: 1
       Enable Link? n
         Node Name:  ___
       Subnet Mask: 255.255.255.0 
Establish Connection: _
DESTINATION
            Digits: _______
      Node Name: ___ _
_____
              CHAP? y
Chap Secret:  
						

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The valid subnets for each Class of address are:
Notice that all 5 valid Class C subnet masks can also be valid Class B or Class A 
subnet masks, and all 13 valid Class B subnet masks can also be valid Class A subnet 
masks.
For example, 
255.255.255.224 is a valid subnet mask for all three address 
classes. It allows 6 (2
3-2) subnetworks for Class C addresses, 2046 (211-2) 
subnetworks for Class B addresses and 524,286 (219-2)subnetworks for Class A 
addresses. Each of these subnetworks can have 30 (25-2) hosts. Valid Value Usage
The default subnet mask is one of three 
values depending on the class of the IP 
address of the local C-LAN port:
•Class A: 255.0.0.0
•Class B: 255.255.0.0
•Class C: 255.255.255.0Enter a value for the subnet mask to 
specify the subnet group to which the IP 
address of this node belongs.
Class A 
(default 255.0.0.0)Class B: 
(default 255.255.0.0)Class C 
(default 255.255.255.0)
255.192.0.0 255.255.192.0 255.255.255.192
255.224.0.0 255.255.224.0 255.255.255.224
255.240.0.0 255.255.240.0 255.255.255.240
255.248.0.0 255.255.248.0 255.255.255.248
255.252.0.0 255.255.252.0 255.255.255.252
255.254.0.0 255.255.254.0
255.255.0.0 255.255.255.0
255.255.128.0 255.255.255.128
255.255.192.0 255.255.255.192
255.255.224.0 255.255.255.224
255.255.240.0 255.255.255.240
255.255.248.0 255.255.255.248
255.255.252.0 255.255.255.252
255.255.254.0 
255.255.255.0 
255.255.255.128  
255.255.255.192 
255.255.255.224 
255.255.255.240 
255.255.255.248 
255.255.255.252  
						

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Destination DigitsUsed to enable access to the correct trunk group at the far end of the connection. This 
is typically the trunk access code (TAC) plus the extension of data module on the far 
end. If you use just the extension, then you must administer UDP and AAR route 
patterns to access the correct trunk group. 
Destination Node NameName of the node at the far end of this connection. 
Chap?Challenge Handshake Authentication Protocol.
Chap SecretPassword for the Challenge Handshake Authentication Protocol.Valid Value Usage
The extension or TAC 
+ extension of the 
destination data 
module.If a trunk access code (TAC) is used, prepend the TAC 
to the extension.
If the Establish Connection field is n, this field 
should be left blank.
Valid Value Usage
A name administered on 
the Node Names Screen.
Valid Value Usage
y/nIdentifies whether the Challenge Handshake Authentication 
Protocol is used over this link. If you enter y, the system 
will prompt for a CHAP secret (password).
Valid Value Usage
1–30 alphanumeric 
characters, but 
cannot begin with 
the “at” sign (@). 
Default is blank.This field displays only if the CHAP field is y. This field 
displays the data being entered or changed. It displays an 
asterisk (*) when the form is brought up initially if the field 
already contains some data.
This field displays the actual contents rather than asterisks if 
the form is brought up by the init login. 
						

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Data Module — Type procr-intf (used for BX.25 connections with the si model)
Use the procr-intf data module type to define an interface between the Processor 
Interface circuit pack and the DS1 facilities carrying the X.25 data for the connection 
to far end switch. This data module associates a link number with a physical channel 
number and extension number for the PI port used for the connection. 
This form applies when the Destination Number field is not set to eia. 
This form applies when the Destination Number field is set to eia (and Link = 1). 
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                                 DATA MODULE
  Data Extension: 3456
 Name: ____________________
            Type: procr-intf
  COS: 1 Maintenance Extension: ____
Physical Channel: __          COR: 1  Destination Number: ______
             ITC: __________   TN: 1  Establish Connection? n
            Link: __      DTE/DCE: DTE         Connected Data Module: __________
                      Enable Link: n
ABBREVIATED DIALING
  List1: _______________
SPECIAL DIALING OPTION: hot-line
    HOT LINE DESTINATION
         Abbreviated Dialing Dial Code (From above list): _
ASSIGNED MEMBER (Station with a data extension button for this data module)
         Ext               Name
    1.
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                                 DATA MODULE
  Data Extension: 3456 
Name: ____________________
            Type: procr-intf  COS: 1 Maintenance Extension: ____
Physical Channel: __          COR: 1 Destination Number: eia___
             ITC: __________   TN: 1
 Establish Connection? n
            Link: 1_      DTE/DCE: DTE                 Connected To: ___
                      Enable Link: n                       Clocking: ______
ABBREVIATED DIALING
  List1: _______________
SPECIAL DIALING OPTION: ____
    HOT LINE DESTINATION
         Abbreviated Dialing Dial Code (From above list): _
ASSIGNED MEMBER (Station with a data extension button for this data module)
         Ext               Name
    1. 
						

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Common FieldsSee Common Data Module Fields (256) for descriptions of fields on this screen that 
are not listed below.
Physical ChannelA number used by the switch software to identify the physical channel.
Maintenance ExtensionThe extension used to perform maintenance functions on the standby physical 
channel in a duplicated system. This is the extension specified on the dial plan. The 
standby remote loop around tests fail if this field is not administered.
Abbreviated Dialing 
List 1Specifies the type of abbreviated dialing list. 
Note:See Administrator’s Guide, 555-233-502, for detailed information on 
abbreviated dialing.
Special Dialing OptionIdentifies the type of dialing when this data module originates calls. Valid Value Usage
A 2-digit 
number equal to 
the link number 
entered on this 
screen.A multi-carrier cabinet system supports the use of two 
Processor Interface circuit packs, the first circuit pack 
(mounted in Control Carrier A) supports physical channels or 
links 01 through 04; the second (mounted in Control Carrier 
A) supports physical channels or links 05 through 08. A 
single-carrier cabinet system supports one Processor Interface 
circuit pack and physical channels or links 01 through 04 only. 
Valid Value Usage
s (system)
g (group)
p (personal)
e (enhanced)
blankIf g or p is entered, a group number or personal list number 
also is required. Entry in this field supports Data Hot Line. 
This field can be left blank.
Valid Value Usage
hot-line, default, or 
blank.Leave blank for regular (normal) keyboard dialing.  
						

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Assigned Member Ext 
and NameDisplay only. Extension and name of a previously administered user who has an 
associated Data Extension button and who will share the use of the module.
ClockingDisplays only when the Destination Number field is set to eia (and Link = 1). This 
field sets the clocking for the physical layer of the protocol. 
Valid Value Usage
internal, external Entering internal specifies that the clocking is provided by 
the eia port, and external (default) specifies that clocking is 
provided by the other end of the link. One end of the link 
should be set to internal and the other end should be set to 
external. 
						

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Data Module - type X.25 (used for BX.25 connections with the r model)
This form applies only to the r model.
Common FieldsSee Common Data Module Fields (256) for descriptions of fields on this screen that 
are not listed below.
Baud RateSpecifies the data transmission rate for this connection. 
Endpoint TypeMust be assigned as adjunct. An endpoint type is a type of packet switched data 
endpoint that uses X.25 call control procedures. The X.25 Endpoint connects to 
external ports on the PGATE board and to the TDM bus via a DS1 trunk. Ports 
connected to the adjunct endpoint can be either DTEs or DCEs.
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                                 DATA MODULE
  Data Extension: ____           Name: ____________________
            Type: x.25                          Remote Loop-Around Test? n
            Port: __              COR: 1             Destination Number: ______
       Baud Rate: __________       TN: 1           Establish Connection? n
   Endpoint Type:_________                        Connected Data Module: ____
            Link: 1_          DTE/DCE: ___                Error Logging? _
Enable Link? n   
                                              
                                              
   Permanent Virtual Circuit? _             Highest PVC Logical Channel: __
    Switched Virtual Circuit? _
Valid entries Usage
9600, 19200, switched Set to 
9600 for DCS connections to the si model, or to 
an r model with an external 9600 baud data line. 
Set to 
switched for r-to-r connections with 
common-channel signaling on DS1 trunks.
Set to 
9600 for connections to Intuity.
Set to either 
9600 or 19200 for CMS, depending on 
the physical connectivity.
Valid entries Usage
adjunct Set to 
adjunct for DCS, CMS, or Intuity AUDIX. 
						

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Error Logging?Used to record X.25 protocol errors in the hardware error log.
Permanent Virtual 
Circuit?Indicates that the logical channels for PVC are allowed for this port; default is y 
(cannot be changed).
Switched Virtual 
Circuit?Indicates that the Switched Virtual Circuit is not allowed for this port; default is n 
(cannot be changed).
Highest PVC Logical 
ChannelIndicates that 1 to 64 Logical Channels are allowed on this port.
Data Module - type x.25 (Page 2)
Number of Outstanding 
Frames (w)
Specifies layer 2 window size (1–7 frames). If the value is 2, up to 2 frames can be 
sent without confirmation. Default is 4. Valid Value Usage
y/nSet to 
n for normal operations. Set to y for testing.
Valid Value Usage
y/n
Default is y.
Valid Value Usage
y/n
Default is n.
Valid Value Usage
1-64
default is 64Leave at 64 for normal operations.
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DATA MODULE 
LAYER 2 PARAMETERS
Number of Outstanding Frames (w): 4
Retry Attempt Counter (N2): 2
Frame Size (N1): 135
Retransmission (T1) Timer (1/10 seconds): 10
Idle (T4) Timer (1/10 seconds): 30
LAYER 3 PARAMETERS
Number of Outstanding Packets: 2
Restart (T20) Timer (seconds): 8
Reset (T22) Timer (seconds): 10