IBM Protocols and Services Notes 47

 

fails to add scroll bars with text fields. If you experience this or other problems,

 

you may want to use a later version of Netscape when it becomes available.

Upgrade Link Window

Since Enterprise OS software version 11.4 Upgrade Link cannot resize the browser

Resizing

window, you should maximize the browser window so that all of the Upgrade Link

 

dialog boxes are fully visible without scrolling.

 

 

IBM Protocols and

This section describes notes, cautions, and other considerations to be aware of

Services Notes

when using the Enterprise OS software when with IBM protocols and services. The

 

topics are presented in alphabetical order.

APPN

In software version 11.4, APPN does not support SMDS.

APPN Connections to

When you connect to a 3174 on a token ring, you may need to enable transparent

3174 through

bridging on the bridge/router. The 3174 may send exchange identification (XID) as

Token Ring

a non-source routed frame.

APPN CP-CP Sessions

If you set up APPN routing in an SNA Boundary Routing configuration from a

and SNA Boundary

NETBuilder II bridge/router to a leaf node bridge/router, CP-CP sessions between

Routing

the remote site PC and the NETBuilder II bridge/router are established before you

 

can configure the Boundary Routing configuration on the NETBuilder II

 

bridge/router. However, after you set the -BCN CONTrol parameter for IBM traffic

 

and enable the -BCN Service, the NETBuilder II bridge/router no longer receives the

 

CP-CP sessions. To work around this problem, first turn off BOOTP on the

 

NETBuilder II port at the central site. An alternative work around is to configure

 

APPN with DLSw at the central site and to use the CEC’s MAC address at the

 

remote site.

APPN CP-CP Sessions on

When parallel transmission groups (TGs) are configured between 3Com network

Parallel TGs

nodes and both TGs support CP-CP sessions, a CP-CP session on one TG does not

 

switch to the other TG if the user disables the port or path. This happens because

 

both sides learn about the link failure at different times. The network node with

 

the disabled port or path learns about the link failure right away and tries to bring

 

CP-CP sessions up on the second TG. However, the second network node does

 

not learn about the link failure until LLC2 times out; because it thinks the link is

 

still up, the second network node does not allow CP-CP sessions to start on the

 

second TG. After five attempts at bringing up CP-CP sessions on the second TG,

 

the second TG will be flagged as not supporting CP-CP sessions, preventing CP-CP

 

sessions from coming up on that second TG. To prevent this situation, manually

 

stop the first TG by entering the SET -APPN LinkStaCONTrol <LinkName>

 

Deactivate command before disabling the port/path. By doing this, both network

 

nodes will learn that the link has gone down at the same time, and CP-CP session

 

can be activated on the second TG.

APPN DLUr Connections

When you configure an APPN dependent LU requestor (DLUr) connection from a

to 3174 Systems

NETBuilder II bridge/router to a 3174 cluster controller, the NETBuilder II network

 

node and the 3174 must be on the same ring. In this configuration, the

 

NETBuilder II token ring port must be set to transparent bridging only.

BSC and Leased Lines

The BSC pass-through feature is limited to leased lines and cannot use dialup links.

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3Com C36460T Upgrade Link Window, Resizing, Appn Connections to, Through, Token Ring, Appn CP-CP Sessions, SNA Boundary