Cisco WAN :: CCU 3745 To Connect IBM Mainframes Into Single Gateway Scenario

My topologie is to connect IBM Mainframes into a Single Gateway Scenario. All the configurations in the machines are correct, and during a feel period of elapsed time we had the mainframe XCA/line/PU Station (Side DLSW) and the PU from CCU 3745 line (Single Gateway Side) both into ACTIVE state. The problem occured when we tried to INACT and ACT the mainframe VTAM lines; The lines, after this restart operation stayed in PCTD1 all the time. Searching the problem into DLSW's Border Router definitions, we observe that there are two Routers Serial Interfaces defineds with the same SDLC VMAC address (4000.3745.0000). Executing the DEBUG DLSW command was verified that there are the following messages:
 
00:39:07: CSM: delete group cache for 4000:3745:1, group 0
00:39:07: CSM: delete group cache for 4000:3745:1, group 0
00:39:07: DLSw: START-FSM (2147483685): event:DLC-CloseStn.Cnf state:CLOSE_PEND
00:39:07: DLSw: 2147483685 to dead queue

My question is, the ocurrence of these two delete group cache for the same Mac Address 4000.3745.1, group 0, means the mistake into maintain defined two Serials Interfaces with the same SDLC VMAC Address ?
 
The messages dispalynd  the CONNECTED state never appears and iI think mus be something like that sample:
 
%DLSWC-3-RECVSSP: SSP OP = 8( CONQ ) from peer 10.17.2.198(2065)
DLSw: START-FSM (488636): event:WAN-CONQ state:CKT_ESTABLISHED
DLSw: core: dlsw_action_i()
DISP Sent : CLSI Msg : CONNECT.Req dlen: 16
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