请教高手：Sybase RS如何创建表级复制

我现在做的是test1库整库复制到test2库，再由test2库表级复制到test3库（test2库跟test3库在一台主机上）。
整库复制创建成功后，按照以下步骤创建表级复制：
1. 主点允许复制
   use test2
     go
     sp_setreptable        t_table ,true  
     go
2. 定义TXT定义
   sp_setrepcol t_table, beizhu,replicate_if_changed
     go
3.设置用户连接
  use test2
   go
   sp_dropuser   test2_maint
   go
   sp_addalias  test2_maint ,dbo
   go
   grant role sa_role to test2_maint
   go

   use test3
   go
   sp_dropuser   test3_maint
   go
   sp_addalias  test3_maint ,dbo
   go
   grant role sa_role to test3_maint
   go

4.出版 --RS执行
  create publication "test3_aa"
    with primary at B.test2
    create replication definition "test3_1402"
      with primary at B.test2
      with all tables named "a"
      ( "a" char(10),
       "b" char(10))
      primary key("a")
      send standby all columns
      replicate all columns
   create article "a"
            for "test3_aa"
    with primary at B.test2
    with replication definition "test3_1402"
  validate publication "test3_aa"
  with primary at B.test2

5.订阅 --RS执行
  create subscription sub_test3
   for publication test3_aa
   with primary at B.test2
   with replicate at B.test3
   subscribe to truncate table

以上步骤执行完之后测试，test3中a表数据并未复制到，错误日志为：
I. 2010/11/23 11:13:56. _SUB_RECOVERY_DAEMON: Retrying materialization for subscription <aa> for article <a> with replicate at <YKZ20101118BPJ.sbtest> for the 527 time
I. 2010/11/23 11:13:56. SQM stopping: 104:-2147483545 a.aa
I. 2010/11/23 11:13:56. SQM starting: 104:-2147483545 a.aa
E. 2010/11/23 11:13:56. ERROR #1028 SUB(aa) - seful\cm.c(3463)
        Message from server: Message: 4002, State 1, Severity 14 -- 'Login failed.
'.
E. 2010/11/23 11:13:56. ERROR #1027 SUB(aa) - seful\cm.c(3463)
        Open Client Client-Library error: Error: 67175468, Severity 4 -- 'ct_connect(): protocol specific layer: external error: The attempt to connect to the server failed.'.
E. 2010/11/23 11:13:56. ERROR #13045 SUB(aa) - seful\cm.c(3467)
        Failed to connect to server 'YKZ20101118BPJ' as user 'sa'. See CT-Lib and/or server error messages for more information.

为什么会这样？请各位高手支招！谢谢了！

你这个貌似是网络中断，你再来一次试试看！

但是我用admin who_is_down，没有down的。？？？？？