For ATM native connections

Code the following DLCADDR operands for an ATM native connection. Fields in italics are user-defined fields.
Note: You can code only one set of DLCADDR operands on the PATH definition statement for ATM native connections.
DLCADDR=(1,C,ATMSVC,tg_use)
DLCADDR=(7,BCD,format,best_effort_indicator,
        a,b,c,forward_traffic_management_options,
        d,e,f,backward_traffic_management_options)
DLCADDR=(8,X,format,outbound_QOS_class,inbound_QOS_class)
DLCADDR=(9,BCD,tns_identifier)
DLCADDR=(21,X,type,remote_ATM_address,remote_ATM_address)
DLCADDR=(31,D,remote_service_access_point_address)
DLCADDR=(51,X,format,a,b,c,d,e)
DLCADDR=(61,BCD,format,05,a,b)
The following list explains the information provided by each subfield:
Subfield
Contents
1
C indicates EBCDIC format. ATMSVC indicates that the connection provides native access to an ATM network.
Code tg_use to specify one of the following items:
EXCLUSIVE
Indicates that the switched virtual channel (SVC) can be used only for this TG
SHARE
Indicates that the SVC can be used for this TG and connection network TGs from this port to the same remote node through the same remote ATM address
7
BCD indicates binary coded decimal format.
Code format to specify one of the following items:
00
Indicates ITU-T defined
03
Indicates ATM network defined
Code best_effort_indicator to specify one of the following items:
00
Indicates that guaranteed bandwidth is wanted
01
Indicates that best effort is acceptable
Code a, b, c, d, e, and f as 4-byte decimal values to specify the following items:
a
Forward peak cell rate (cells per second) for cell loss priority 0+1 (CLP=0+1)
b
Forward sustainable cell rate (cells per second) for (CLP=0)
c
Forward maximum burst size (cells) for (CLP=0)
d
Backward peak cell rate (cells per second) for cell loss priority 0+1 (CLP=0+1)
e
Backward sustainable cell rate (cells per second) for (CLP=0)
f
Backward maximum burst size (cells) for (CLP=0)
Code forward traffic_management_options to specify one of the following items:
00
Indicates that tagging is not requested in the forward direction
01
Indicates that tagging is requested in the forward direction
Code backward traffic_management_options to specify one of the following items:
00
Indicates that tagging is not requested in the backward direction
01
Indicates that tagging is requested in the backward direction
Note: If best_effort_indicator is 00, code format, a, b, c, forward_traffic_management_options, d, e, f, and backward_traffic_management_options.

If best_effort_indicator is 01, code format, a, and d.

8
X indicates hexadecimal format.
Code format to specify one of the following items:
00
Indicates ITU-T defined
03
Indicates ATM network defined

Code outbound_QOS_class to specify the QOS class for outbound (forward) data traffic.

Code inbound_QOS_class to specify the QOS class for inbound (backward) data traffic.

9
BCD indicates binary coded decimal format.

Code tns_identifier to specify the carrier identification code for the carrier that will be used for this connection.

21
X indicates hexadecimal format.
Code type to specify one of the following items:
0101
Indicates public E164 address, which means the address is in a public ATM network. The address is variable in length.
0002
Indicates International Organization for Standardization (ISO) network service access point (NSAP), which means the address is in a private ATM network. The address is always 20 bytes long.
Code remote_ATM_address to specify the address of the remote node connected through this SVC.
Note: If the remote node is a VTAM® node, see zEnterprise System and System z10 OSA-Express Customer's Guide and Reference for information about how to determine the ATM address through which the remote VTAM node can be reached. You can also determine the ATM address by starting both VTAMs, then activating the following resources in each VTAM:
  • The TRL major node
  • The XCA major node that defines the port through which VTAM can be reached
  • Any line defined in the XCA major node
Then issue a DISPLAY ID command for the XCA major node in each VTAM. The resulting displays show the ATM addresses for each VTAM. These are the addresses that should be specified in the switched major nodes of the VTAMs.

Code a second remote_ATM_address if type=0002 and the port through which this call is made is attached directly to a public network. This second remote_ATM_address is a public gateway E164 address through which the private address can be reached.

31
D indicates decimal format.

Code remote_service_access_point_address to specify the service access point address of the remote node connected through this SVC.

51
X indicates hexadecimal format.
Code format to specify the following items:
00
Indicates ITU-T defined
Code a, b, c, d, and e to specify the following bearer capabilities:
a
Bearer class.
a can be one of the following items:
01
Indicates class A
03
Indicates class C
10
Indicates class X
b
Susceptibility to clipping.
b can be one of the following items:
00
Not susceptible
01
Susceptible
c
User plane connection configuration.
c must be:
00
Point-to-point
d
If bearer class is 10, indicates the traffic type.
d can be one of the following items:
00
No indication
02
Variable bit rate
e
If bearer class is 10, indicates timing requirements.
e can be one of the following items:
00
No indication
01
End-to-end timing required
61
BCD indicates binary coded decimal format.
Code format to specify the following items:
00
Indicates ITU-T defined

Code 05 to indicate ATM adaptation layer (AAL) type 5.

Code a and b as 4-byte decimal values to specify the following AAL parameters:
a
Forward CPCS-SDU maximum size
b
Backward CPCS-SDU maximum size
Note: If an application using an ATM reserved bandwidth SVC connection sends RUs smaller than the forward CPCS-SDU size, the throughput for the session may be reduced. For example, if the forward CPCS-SDU size was defined or allowed to default to 8448 (Maximum RU size 8K + 256), and the data being transmitted over this ATM connection is in 1K RUs, the throughput (as defined by the connection's forward cell rate) is greatly reduced. If this ATM SVC connection is used for 1K RU data transmission, the forward CPCS-SDU size should be set to 1280 bytes (Maximum RU size of 1K + 256).