Revised October 11, 2006
June 15, 2001
THIS FIELD NOTICE HAS BEEN ARCHIVED AND IS NO LONGER MAINTAINED OR UPDATED BY CISCO.
THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE, WARRANTY OR SUPPORT. USE OF THE INFORMATION ON THIS FIELD NOTICE OR MATERIALS LINKED FROM THIS FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.
All platforms running Cisco IOS® Software Release 12.1(8)
When using data-link switching (DLSw) Transmission Control Protocol (TCP) with Cisco IOS software 12.1(8) with an ethernet connection into DLSw, the Logical Link Control (LLC) session on the DLSw router can get stuck in REJECT state.
CSCds75669: Problem with bridged DECnet traffic, introduced first in 12.1(7.2).
CSCdt67276: Problem with large packets failing over bridged X.25.
CSCdu43134: Problem with ethernet bridging into DLSw/TCP.
When running transparent bridging into DLSw/TCP, the LLC session on the DLSw router can get stuck in REJECT state. After a while the other end of the LLC stack (normally a mainframe front-end) will disconnect the circuit. Only LLC2 sessions that originate via a transparent bridge group are affected, meaning a session originated on a TR coming into the router via source-route bridging (SRB) works fine.
A workaround is reconfiguring from TCP to Fast Sequenced Transport (FST) encapsulation. The Fix is integrated in Cisco IOS 12.1(8.1). The next maintenance release, which is 12.1(9), will have the fix as well.
To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.
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