IBM SC30-3865-04 - Manual (Page 163)

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