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2-26 TN3270 Design and Implementation Guide

UNBIND-Action Command

A session unbind (speciﬁed using the unbind-action command) indicates whether or not a TN3270 session is

disconnected upon UNBIND. A value of disconnect indicates that the TN3270 Server disconnects the TN3270

client upon receipt of an UNBIND. A value of keep indicates that no automatic disconnect is made by the

TN3270 Server upon receipt of an UNBIND.

Generic-pool Command

Use the generic-pool TN3270 conﬁguration command to specify whether or not leftover LUs are made available

to TN3270 sessions that do not request a speciﬁc LU or LU pool through TN3270E. A leftover LU is an LU from

the pool of dynamic LUs that you have specify in the switched major node using the LU-SEED parameter and

the LUGROUP parameter.

The generic-pool command can be used as a global TN3270-server command, but is also used in

PU-conﬁguration mode to change the value (permit or deny) for speciﬁc PUs:

• generic-pool permit—This is the default. Left over LUs can be used by clients that request a generic session

(non-TN3270E-clients; or TN3270E-clients).

• generic-pool deny—The TN3270 Server will not attempt dynamic deﬁnition of any LUs on a PU. That is, only

static LUs are supported. You might deny the use of the generic pool for security reasons.

Older TN3270 clients cannot request an LU session using a speciﬁc LU name. In earlier versions of the Cisco

IOS software, the generic-pool deny command prevented non-TN3270E clients from obtaining a session. But

with the current release of the Cisco IOS software you can nail LUs to IP addresses in the router conﬁguration.

Thisfeature allowsnon-TN3270Eclients toestablisha sessioneven ifthegeneric-pool denycommandhas been

speciﬁed.

Conﬁguring IP Precedence and ToS Support (Optional)

There are two commands that support IP precedence and IP ToS.

To conﬁgure IP precedence, perform the following task (Table 2-6) in TN3270 Server or TN3270 PU

conﬁguration mode:

Use the no ip precedence screen or the no ip precedence printer command to return the precedence value to a

default of 0.

To conﬁgure IP ToS, perform the following task (Table 2-7) in TN3270 Server or TN3270 PU conﬁguration

mode:

Use the no ip tos screen or the no ip tos printer command to return the precedence value to a default of 0.

Table 2-6 IP Precedence Conﬁguration Tasks

Task Command

Conﬁgure the IP level. ip precedence {screen | printer} value

Table 2-7 IP ToS Conﬁguration Tasks

Task Command

Conﬁgure the IP ToS delay level. ip tos {screen | printer} value

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Cisco 11.0 BT Manual de usuario Pagina 26