Cisco 11.0 BT Bedienungsanleitung PDF herunterladen (Seite 25)

TN3270 Server Implementation 2-25

When you use the tn3270-server command, you enter TN3270 conﬁguration mode and are able to use all other

commands inthe task list. You can override many conﬁgurationvalues you enter in TN3270 conﬁguration mode

from PUconﬁguration mode. On IBM host systems,these types of commands are often referred to as “siftdown”

commands because their values sift down through several levels of conﬁguration and can be optionally altered

at each conﬁguration level.

Maximum-LUs Command

The maximum-lus command sets a limit on the number of LU control blocks that are allocated for the TN3270

Server. It can be used to prevent the TN3270 Server from inhibiting other applications on the CIP or CPA.

The TN3270 Server attempts to allocate one LU control block for each LU activated by the hosts. For DDDLU,

the control block is allocated when the client requests the LU (in anticipation of an ACTLU from the mainframe

host).

Valid values are from 0 to 32000. The default is 2100. However, memory and other limitations may prevent the

maximum value from being achieved. Although this value may be changed at any time, reducing it below the

number currently allocated will not force control blocks to be released. In fact, no LU control blocks will be

released to the system until the PU is inactivated.

Idle Time Disconnect Command

The idle time disconnect command speciﬁes the number of seconds of LU inactivity, from both host and client,

before the TN3270 session is disconnected.Specifying zero secondsmeans that LUsessions are notdisconnected

when inactive.

Keepalive Command

Use the keepalive command (when issued under the TN3270 command context) to monitor active LUs. For

example, keepalive 600 sends a Telnet TIMING-MARK every 10 minutes if there is no other trafﬁc ﬂowing

between the server and theclient. If, aftera timeoutperiod ofbetween one andthree minutes,the endclient does

not respond, then the CIP or CPA disconnects the session. This action is useful for cleaning up partially

disconnected TCP sessions.

Ifyou areusingstatic LUs,then use oneof thefollowingcode releases:CIP22-27, CIP24-5orCIP25-6 andhigher.

These releases handle partially disconnected sessions without use of the keepalive command.

(Optional) Specify the idle time for server

disconnect. This command is also available in

PU conﬁguration mode.

idle-time num-of-seconds

(Optional) Specify the maximum time allowed

between keepalive marks before the server

disconnects. This command is also available in

PU conﬁguration mode.

keepalive num-of-seconds

(Optional) Specify whether the TN3270 session

will disconnect when an UNBIND command is

received. This command is also available in PU

conﬁguration mode.

unbind-action {keep | disconnect}

(Optional) Select whether “left-over” LUs can

be used from a generic LU pool. This command

is also available in PU conﬁguration mode.

generic-pool {permit | deny}

Table 2-5 TN3270 Server Conﬁguration Tasks

Task Command

1 2 ... 20 21 22 23 24 25 26 27 28 29 30

Kommentare zu diesen Handbüchern

Keine Kommentare

Cisco 11.0 BT Bedienungsanleitung Seite 25

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Server Cisco 11.0 BT