Avaya Configuring DLSw Services User Manual download pdf (Page 277)

Troubleshooting DLSw

303523-A Rev. 00

C-21

TCP open error 29

The DLSw peer connections through TCP cannot be activated until the source

(local) IP interface becomes active. For example, Token Ring networks that take

longer to initialize may cause this error in the log. The TCP sessions establish

when the IP interface activates. For example:

# 36: 04/25/95 22:43:17 INFO SLOT 1 TCP Event Code: 7

TCP Error: 29 Opening 192.200.1.25,2065 - 192.200.4.40,2067 TCB:

0x3042cf0

DLSw peers not reachable due to lack of a route

IP needs to route the TCP connect request to the remote peer through the standard

routing mechanisms. If IP cannot reach the destination address, the TCP peer

connection cannot establish.

Traffic going over SRB instead of DLSw path

Performance is below normal and data traverses the network over SRB instead of

the expected DLSw path. This could be caused by DLSw configured on the

IP/WAN interface on the router instead of the destination port where the DLSw

traffic is to terminate.

Resetting dynamic window algorithm

Proper LLC flow control operation is indicated by messages stating that the

dynamic window algorithm is resetting.

Expecting SNRM prior to DLSw connection to host

Refer to Configuring SDLC Services and check the Pre-Activation Contact Frame

parameter setting.

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Avaya Configuring DLSw Services User Manual Page 277