PDF《DLSw故障排除：SDLC》

01 state is CONNECT !--- Refer to SDLC States . cls_state is CLS_IN_SESSION !--- See Table

1 ??? CLS States. VS 6, VR 6, Remote VR 6, Current retransmit count

0 Hold queue: 0/200 IFRAMEs 2649/683 TESTs 0/0 XIDs 0/0, DMs 0/0 FRMRs 0/0 !--- FRMRs could indicate a bug in the end station SDLC emulation package. !--- Check the values in the FRMR frame against the FRMR frame description. RNRs 1797153/2291 SNRMs 222/0 DISC/RDs 12/0 REJs 0/0 !--- If you see a steady increase in RNRs, then check for congestion on the DLSw !--- peer (the value under the TCP column in show dlsw peer command output). !--- If RNRs are greater than

50 percent of the default TCP queue depth 200, then !--- there is congestion. Poll: clear, Poll count: 0, ready for poll, chain: 01/01 Last input 00:00:00, output 00:00:00, output hang never Last clearing of show interface counters never Queueing strategy: fifo Output queue 0/40,

0 drops;

input queue 0/75,

0 drops !--- Check that the input and output queues are not wedged (41/40 or 76/75). !--- If the queue is wedged, then the router usually must be reloaded to recover.

5 minute input rate

0 bits/sec,

4 packets/sec

5 minute output rate

0 bits/sec,

4 packets/sec

2857443 packets input,

5738306 bytes,

0 no buffer Received

409483 broadcasts,

0 runts,

0 giants,

0 throttles

1 input errors,

0 CRC,

0 frame,

0 overrun,

0 ignored,

1 abort !--- Giants and input errors might indicate a wrong NRZI value (NRZI-ENCODING).

2857874 packets output,

6029620 bytes,

0 underruns

0 output errors,

0 collisions,

60523 interface resets

0 output buffer failures,

0 output buffers swapped out

53 carrier transitions DCD=up DSR=up DTR=up RTS=down CTS=up !--- RTS and CTS are always up, with full duplex. !--- RTS and CTS will cycle between up and down, with half duplex. 表1 ? ? ?CLS状态 状态 含义 CLS_STN_CLOSED 线路启动过程未开始. CLS_ROSCNF_PEND ReqOpenStn发送对PU;

等候 ReqOpenStnCfm. CLS_STN_OPENED 从PU接收的ReqOpenStnCfm. CLS_CONNECT_RSP _PEND 发送的SNRM;

等候从PU的UA. CLS_DISCCNF_PEN D PU发送DISC (如果主要的)或RDISC (如果第二). CLS_CONNECT_REQ _PEND 等候连接答复. CLS_FULL_XID_PEN D 等候对发送的空XID的一答复. CLS_CONNECTED_I ND_PEND 从DLU接收的Connect.Rsp. CLS_DISC_IND_SEN T Disconnect.Ind发送. CLS_IN_SESSION 电路建立完成. CLS_CLOSING Cisco Link Services (CLS)在一关 闭的状态. PU类型 例如对于连接SDLC的控制器,是重要的认识使用的物理单元类型(PU2.0或PU2.1)和SDLC角色. 他们代表的表2显示某些最普通的设备和PU类型.PU类型确定应该采用的配置,如PU 2所示 SDLC工作站角色设置为附属部分. 表2 ? ? ?设备PU类型 设备 PU类型

5294 1

5394 1

5394 +RPQ 8Q0775 2.1

5494 2.1

3276 2.0

3274 2.0

3174 2.0/2.1

3745 4

3172 没有PU XCA节点 S/38 2.0 36XX 2.0 Netware/SAA 2.0/2.1 SNA服务器NT 2.0/2.1 PU

2 SDLC工作站角色设置为第二 interface serial x encapsulation sdlc sdlc role primary !--- Assumes SDLC station role secondary for the attached SDLC controller. sdlc vmac 1234.3174.0000 !--- Virtual MAC address given to the SDLC controller, which has the !--- SDLC address (D2) appended to it. !--- For more information about the sdlc vmac command, refer to !--- LLC2 and SDLC Commands. sdlc address D2 !--- SDLC address obtained from SDLC controller configuration. sdlc xid D2

01730020 !--- D2 is the SDLC address, and

01730020 is the IDBLK and IDNUM, which is !--- obtained from the Switched Major Node on the host. sdlc partner 1000.5aed.1f53 D2 !--- 1000.5aed.1f53 is the MAC address of the host, and D2 is the SDLC address. sdlc dlsw D2 PU