Reference for Enterprise OS Software

SdlcDlurLinkSta

Syntax

: ADD !<port> -APPN SdlcDlurLinkSta <max_btu_size>(265-8912) <station addr>(Hex 1-FE) <dspu name> [Nodeid=<ID>] [LinkName=<name>] [Dlus=[netid.]name] [Backup=[netid.]name] [TGprof=<name>] [AutoStart=(Yes|No)] [PU2=(Yes|No)] [HPR=(Yes|No)] [CPSess=(Yes|No)] [SendWindow=<num>] [ContactTimer=<num>] [NoRspTimer=<num>] [NoRspTimRetry=<num>]
: DElete !<port> -APPN SdlcDlurLinkSta <LinkName>
: SHow [!<port>] -APPN SdlcDlurLinkSta [LinkName]

Default

No default

Description

The SdlcDlurLinkSta parameter specifies for SDLC traffic a link station for downstream DLUr nodes. Using the ADD command, you specify a DLUr link station for a port, including the DLUr's station address and downstream physical unit name (DSPU).

APPN over SDLC connections is supported on all types of HSS-3 Port modules, including V.35, RS-232, and RS-449.

Values

<max_btu_size>

Specifies the maximum BTU size for the DLUr link station. The value range is 256-8912.

<station addr>

Specifies the station address (or polling address) of the DLUr link station. Enter the address in hex.

<dspu name>

Specifies the downstream physical unit (DSPU) name. If the host activates the session with the DLUr link station, then the DSPU name you configure here must match the name on the host configuration.

Nodeid

Specifies the node ID that is checked by the XID. The node ID must be entered in hex and must include all eight hex digits. A node ID of 0x00000000 means that the Node ID will not be checked.

<LinkName>

Specifies the name assigned to the link. All link names must be unique on the local network node. For example, you cannot use the same link name on more than one port, and you cannot use the same link name for two types of links (such as for adjacent link stations or DLUr link stations) at the same time. The link name is limited to eight characters, and cannot start with special characters. If no link name is specified, the system assigns a link name LINKXXXX where XXXX is a number between 0001 and 9999. When deleting a DLUr link station, you must specify the link name.

Dlus

Specifies the primary DLUs name used by this DLUr link station. If no primary DLUs is specified, then the DLUs configured with the DlurDefaults parameter are used.

Backup

Specifies the backup DLUs name used by this DLUr link station. If no backup DLUs is specified, then the backup DLUs configured with the DlurDefaults parameter are used.

Tgprof

Specifies the TG profile assigned to the DLUr link station. The TG profile is a set of default values that apply to the link if chosen. When a TG profile is specified, the proper effective capacity and propagation delay values will be assigned to the link station based on the link speed of the media. For a list of TG profiles, see Table 15 earlier in this chapter.

AutoStart

If you specify Yes, the link is automatically activated when the local network node is enabled, and is restarted automatically if the link stops. If you specify No, the link is not automatically started and you have to activate the link by entering SET -APPN LinkStaCONTrol. The default value is Yes.

PU2

Specifies whether the link station is a PU 2.0 node or a PU 2.1 node. If you specify Yes, the link will support communication to PU 2.0 nodes but will support DLUr services only (and not APPN services). If you specify No, the link will support communication to PU 2.1 nodes and can support both APPN and DLUr over the same link. The default is No.

If you specify Yes, the link can be activated by the host. If you specify No, the link cannot be activated by the host. Specify Yes if the downstream node does not support APPN, or you do not want APPN services from the local network node.

HPR

Specifies if the link station supports HPR on this link. If you specify Yes, then HPR is supported on the link between the local node and the adjacent link station. If you specify No, HPR is not supported. The default is Yes, meaning HPR is supported by default, so if you want the SDLC DLUr link station to support only ISR, you must specify No.

CPSess

Specifies whether CP-CP sessions are activated with the adjacent node. If you specify Yes, CP-CP sessions are activated with the node, and if you specify No, they are not activated. The default value is No if the adjacent node type is a network node, and Yes if the adjacent node type is an end node or the node type is set to LEARN.

SendWindow

Specifies the send window size in number of frames. The valid range is from 1 to 12. The default is 4.

The receive window size is always 7 if the send window size is less than or equal to 7; in this case, the normal sequence numbering (Modulo 8) is used. The receive window size is always 12 if the send window size is greater than 7 but less than 12; in this case, the extended sequence numbering (Modulo 128) is used.

ContactTimer

Specifies the number of seconds to wait between attempts to contact a failed or newly activated adjacent link station. The default is 1 second. This value is valid on primary ports only.

NoRspTimer

This value, also known as the T1 timer, specifies the no-response time-out in milliseconds for the SDLC port on the bridge/router. If the link station does not receive a response to a poll or message before this timer expires, then the transmission is retried until the retry count is exhausted. The default is 1,000 milliseconds. This value is valid on primary ports only.

NoRspTimRetry

Specifies the number of times the bridge/router attempts to complete a protocol exchange with a connected device before stopping the attempts. The default is 3. This value is valid on primary ports only.

<max_btu_size>	Specifies the maximum BTU size for the DLUr link station. The value range is 256-8912.
<station addr>	Specifies the station address (or polling address) of the DLUr link station. Enter the address in hex.
<dspu name>	Specifies the downstream physical unit (DSPU) name. If the host activates the session with the DLUr link station, then the DSPU name you configure here must match the name on the host configuration.
Nodeid	Specifies the node ID that is checked by the XID. The node ID must be entered in hex and must include all eight hex digits. A node ID of 0x00000000 means that the Node ID will not be checked.
<LinkName>	Specifies the name assigned to the link. All link names must be unique on the local network node. For example, you cannot use the same link name on more than one port, and you cannot use the same link name for two types of links (such as for adjacent link stations or DLUr link stations) at the same time. The link name is limited to eight characters, and cannot start with special characters. If no link name is specified, the system assigns a link name LINKXXXX where XXXX is a number between 0001 and 9999. When deleting a DLUr link station, you must specify the link name.
Dlus	Specifies the primary DLUs name used by this DLUr link station. If no primary DLUs is specified, then the DLUs configured with the DlurDefaults parameter are used.
Backup	Specifies the backup DLUs name used by this DLUr link station. If no backup DLUs is specified, then the backup DLUs configured with the DlurDefaults parameter are used.
Tgprof	Specifies the TG profile assigned to the DLUr link station. The TG profile is a set of default values that apply to the link if chosen. When a TG profile is specified, the proper effective capacity and propagation delay values will be assigned to the link station based on the link speed of the media. For a list of TG profiles, see Table 15 earlier in this chapter.
AutoStart	If you specify Yes, the link is automatically activated when the local network node is enabled, and is restarted automatically if the link stops. If you specify No, the link is not automatically started and you have to activate the link by entering SET -APPN LinkStaCONTrol. The default value is Yes.
PU2	Specifies whether the link station is a PU 2.0 node or a PU 2.1 node. If you specify Yes, the link will support communication to PU 2.0 nodes but will support DLUr services only (and not APPN services). If you specify No, the link will support communication to PU 2.1 nodes and can support both APPN and DLUr over the same link. The default is No.
	If you specify Yes, the link can be activated by the host. If you specify No, the link cannot be activated by the host. Specify Yes if the downstream node does not support APPN, or you do not want APPN services from the local network node.
HPR	Specifies if the link station supports HPR on this link. If you specify Yes, then HPR is supported on the link between the local node and the adjacent link station. If you specify No, HPR is not supported. The default is Yes, meaning HPR is supported by default, so if you want the SDLC DLUr link station to support only ISR, you must specify No.
CPSess	Specifies whether CP-CP sessions are activated with the adjacent node. If you specify Yes, CP-CP sessions are activated with the node, and if you specify No, they are not activated. The default value is No if the adjacent node type is a network node, and Yes if the adjacent node type is an end node or the node type is set to LEARN.
SendWindow	Specifies the send window size in number of frames. The valid range is from 1 to 12. The default is 4.
	The receive window size is always 7 if the send window size is less than or equal to 7; in this case, the normal sequence numbering (Modulo 8) is used. The receive window size is always 12 if the send window size is greater than 7 but less than 12; in this case, the extended sequence numbering (Modulo 128) is used.
ContactTimer	Specifies the number of seconds to wait between attempts to contact a failed or newly activated adjacent link station. The default is 1 second. This value is valid on primary ports only.
NoRspTimer	This value, also known as the T1 timer, specifies the no-response time-out in milliseconds for the SDLC port on the bridge/router. If the link station does not receive a response to a poll or message before this timer expires, then the transmission is retried until the retry count is exhausted. The default is 1,000 milliseconds. This value is valid on primary ports only.
NoRspTimRetry	Specifies the number of times the bridge/router attempts to complete a protocol exchange with a connected device before stopping the attempts. The default is 3. This value is valid on primary ports only.