beautypg.com

Appn configuration commands – IBM SC30-3865-04 User Manual

Page 163

background image

Table 18. Configuration Parameter List - Port Configuration for ATM (continued)

Parameter Information

Parameter

Backward Traffic Tagging

Valid Values

Yes, No

Default Value

Yes, unless Best Effort connection

Description

This parameter indicates that cells that are nonconforming to cell loss priority 0 traffic
specification but are conforming to cell loss priority 1 traffic specification are marked
and allowed into the ATM network. You cannot specify this parameter for a Best Effort
connection.

Parameter

Backward QoS

Valid Values

CLASS_0, CLASS_1, CLASS_2, CLASS_3, CLASS_4, where

CLASS_0

The unspecified class. The network does not specify any QoS.

CLASS_1

Performance is comparable to current digital private line performance.

CLASS_2

Intended for packetized video and audio in teleconferencing and multimedia
applications.

CLASS_3

Intended for interoperation of connection-oriented protocols, such as Frame Relay.

CLASS_4

Intended for interoperation of connectionless protocols, such as IP.

Default Value

CLASS_0

Description

This parameter indicates which class of service is provided to an ATM virtual
connection. You cannot specify this parameter for a Best Effort connection.

Parameter

LDLC retry count

Valid Values

1 — 255

Default Value

3

Description

This parameter is used in conjunction with the LDLC timer period to provide reliable
delivery of XIDs. The retry count is initialized when a command or request is first
transmitted over the link. If the LDLC timer period expires before a response is
received, the command or request is retransmitted, the retry count is decremented, and
the LDLC timer period is restarted. If the timer expires with the retry count at 0, the link
is assumed to be inoperative.

APPN Configuration Commands

Chapter 2. Configuring and Monitoring APPN

133