在 QLLC 上配置 DLSw+

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已更新: 2005 年 9 月 9 日
文档 ID:28401

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简介

在此配置中，有两个不同的X.25资源（我们使用dspu-host来模拟此设置中的终端设备）。 有关下游物理设备(DSPU)的详细信息，请参阅以下文档：

这两个终端设备通过X.25与大型机站点中的不同适配器通信。远程X.25资源配置了不同的目的地址（不同长度和不同地址）。 其X.121目的地址与路由器的“qllc dlsw子地址”匹配的任何传入呼叫都会被分派到增强型数据链路交换(DLSw+)（具有ID.STN IND）。 当DLSw+收到有关池中虚拟MAC地址的“能否到达”查询时，限定逻辑链路控制(QLLC)代码会尝试将虚电路(VC)设置到X.121地址，该虚电路(VC)映射到指定的虚拟MAC地址。如果收到来电，QLLC会将ID.STN.IND和虚拟MAC地址从池发送到DLSw+。

先决条件

要求

本文档没有任何特定的要求。

使用的组件

本文档中的信息基于以下软件和硬件版本：

  • Pathos(Cisco 2612)中使用Cisco IOS®软件版本12.2(6a)

  • Namur & Goode(Cisco 2500、Cisco 4000)中使用了Cisco IOS软件版本12.0(20)

  • Nesle(Cisco 4500)中使用了思科IOS软件版本12.1(7)

本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您使用的是真实网络，请确保您已经了解所有命令的潜在影响。

规则

有关文件规则的更多信息请参见“ Cisco技术提示规则”。

拓扑图

Topo.gif

配置

本部分提供有关如何配置本文档所述功能的信息。

注：要查找有关本文档中使用的命令的其他信息，请使用命令查找工具(仅注册客户)。

配置

大型机的MAC地址如下：

  • 4000.7507.0000

  • 4000.7507.ffff

本文档使用此处所示的配置：

Cisco 7507(Meatfest) 
source-bridge ring-group 100 
dlsw local-peer peer-id 10.48.64.75 promiscuous 
! 
interface Channel4/2 
 ip address 10.48.64.225 255.255.255.240 
 no keepalive 
 lan TokenRing 0 
  source-bridge 88 1 100 
  adapter 0 4000.7507.0000 
  adapter 1 4000.7507.ffff

思科2612(Pathos) 
! 
source-bridge ring-group 200 
dlsw local-peer peer-id 10.48.64.40 
dlsw remote-peer 0 tcp 10.48.64.75 
! 
interface Ethernet0/0 
 ip address 10.48.64.40 255.255.255.0 
 half-duplex 
! 
interface Serial0/0 
 no ip address 
! 
interface TokenRing0/0 
 no ip address 
 ring-speed 16 
! 
interface Serial0/1 
 no ip address 
 encapsulation x25 
 x25 alias .*  

!--- It is used against the destination !--- address of a received call.

 x25 htc 10 
 x25 win 7 
 x25 wout 7 
 qllc accept-all-calls 
 qllc dlsw subaddress 123456789012345 vmacaddr 4000.3333.0000 2 partner 4000.7507.0000 
 qllc dlsw subaddress 2224 vmacaddr 4000.2222.0000 2 partner 4000.7507.ffff 
! 
ip default-gateway 10.48.64.1 
ip classless 
no ip http server 
ip pim bidir-enable 
! 
! 
dial-peer cor custom 
!

Cisco 4500(Nesle) 
! 
x25 routing 
! 
! 
! 
interface Ethernet0 
 ip address 10.48.64.34 255.255.255.0 
 media-type 10BaseT 
! 
interface Ethernet1 
 no ip address 
 shutdown 
 media-type 10BaseT 
! 
interface Ethernet2 
 no ip address 
 media-type 10BaseT 
! 
interface Serial0 
 no ip address 
 encapsulation x25 dce 
 clockrate 250000 
! 
interface Serial1 
 no ip address 
! 
interface Serial2 
 no ip address 
 encapsulation x25 dce 
 no ip mroute-cache 
 clockrate 250000 
! 
interface Serial3 
 no ip address 
 encapsulation x25 dce 
 clockrate 250000 
 ! 
interface TokenRing0 
 no ip address 
 ring-speed 16 
! 
ip default-gateway 10.48.64.1 
ip classless 
no ip http server 
x25 route input-interface Serial2 interface Serial0 
x25 route input-interface Serial3 interface Serial0 
x25 route 555 interface Serial2 
x25 route 666 interface Serial3 
! 
line con 0 
 exec-timeout 0 0 
line aux 0 
 exec-timeout 0 0 
line vty 0 4 
 exec-timeout 0 0 
 password 7 071836 
 login 
! 
ntp clock-period 17179258 
ntp server 10.48.64.100 
end

Cisco 2500(Namur) 
hostname namur 
! 
logging buffered 150000 debugging 
enable password 7 120E12 
! 
dspu host OZDEN xid-snd 00000000 x25 2224 qllc 12 interface Serial1 
! 
interface Ethernet0 
 no ip address
 no ip directed-broadcast 
 shutdown 
! 
interface Serial0 
 no ip address 
 no ip directed-broadcast 
 shutdown 
! 
interface Serial1 
 no ip address 
 no ip directed-broadcast 
 encapsulation x25 
 no ip mroute-cache 
 x25 address 555 
 x25 htc 10 
 x25 win 7 
 x25 wout 7 
 dspu enable-host qllc 12 
 dspu start OZDEN 
! 
interface TokenRing0 
 no ip address 
 no ip directed-broadcast 
 shutdown 
!

Cisco 4000(Goode) 
dspu host GOODE xid-snd 11132323 x25 123456789012345 qllc 20 interface Serial1 
! 
interface Ethernet0 
 ip address 10.48.64.17 255.255.255.0 
 no ip directed-broadcast 
 media-type 10BaseT 
! 
interface Serial0 
 no ip address 
 no ip directed-broadcast 
 shutdown 
! 
interface Serial1 
 no ip address 
 no ip directed-broadcast 
 encapsulation x25 
 no ip mroute-cache 
 x25 address 666 
 x25 htc 10 
 x25 win 7 
 x25 wout 7 
 dspu enable-host qllc 20 
 dspu start GOODE 
!

验证

本节提供可用于确认配置处于活动状态的信息。

命令输出解释程序工具（仅限注册用户）支持某些 show 命令，使用此工具可以查看对 show 命令输出的分析。

  • show llc2 — 显示路由器中处于活动状态的LLC2连接。

  • show version — 显示软件版本信息。

  • show dlsw peer — 显示dlsw对等连接信息。

  • show dlsw circuit detail — 显示DLSW电路的详细信息。

  • show qllc serial 0/1 — 显示有关QLLC serial 0/1的信息。

  • show x25 interface serial 0/1 — 显示X.25串行接口0/1上线路和协议的状态。

  • show x25 route — 显示X.25路由表。

  • show x25 interface serial 0 — 显示X.25串行接口0上线路和协议的状态。

  • show dspu — 显示DSPU功能的状态。

  • show x25 interface serial 1 — 显示X.25串行接口1上线路和协议的状态。

肉宴 
#show llc2 
.... 
Channel4/2 DTE: 4000.7507.ffff 4000.2222.0000 04 04 state NORMAL 
   V(S)=1, V??)=1, Last N??)=1, Local window=7, Remote Window=127 
   akmax=3, n2=8, 
   xid-retry timer      0/0       ack timer       0/1000 
   p timer              0/1000    idle timer   5430/10000 
   rej timer            0/3200    busy timer      0/9600 
   adm timer            0/60000   llc1 timer      0/1000 
   akdelay timer        0/100     txQ count       0/200 
   RIF: 06B0.0581.0640 
Channel4/2 DTE: 4000.7507.0000 4000.3333.0000 04 04 state NORMAL 
   V(S)=6, V??)=6, Last N??)=6, Local window=7, Remote Window=127 
   akmax=3, n2=8, 
   xid-retry timer      0/0       ack timer       0/1000 
   p timer              0/1000    idle timer   5630/10000 
   rej timer            0/3200    busy timer      0/9600 
   adm timer            0/60000   llc1 timer      0/1000 
   akdelay timer        0/100     txQ count       0/200 
   RIF: 06B0.0581.0640

帕索斯 
pathos#show version 
Cisco Internetwork Operating System Software 
IOS (tm) C2600 Software (C2600-IS-M), Version 12.2(6a), RELEASE SOFTWARE (fc1) 
Copyright ??) 1986-2001 by cisco Systems, Inc. 
Compiled Sat 01-Dec-01 22:30 by pwade 
Image text-base: 0x80008088, data-base: 0x810616B4 
pathos#show dlsw peer 
Peers:                state     pkts_rx   pkts_tx  type  drops ckts TCP   uptime 
 TCP 10.48.64.75     CONNECT        118        91  conf      0    2   0 00:32:12 
Total number of connected peers: 1 
Total number of connections:     1 
pathos#show dlsw circuit detail
Index           local addr(lsap)    remote addr(dsap)  state          uptime 
234881048       4000.2222.0000(04)  4000.7507.ffff(04) CONNECTED      00:29:50 
        PCEP: 81C25730   UCEP: 81D88528 
        Port:Se0/1          peer 10.48.64.75(2065) 
        Flow-Control-Tx  CW:20, Permitted:19; Rx CW:20, Granted:39; Op: Repeat 
        Congestion: Low(02), Flow Op: Half: 0/0 Reset 0/0 
        RIF = --no rif-- 
        Bytes:             429/453        Info-frames:           1/1 
        XID-frames:          5/4          UInfo-frames:          0/0 
        HPR saps: local 0x0, remote 0x4 
1426063385      4000.3333.0000(04)  4000.7507.0000(04) CONNECTED      00:29:49 
        PCEP: 81D081B4   UCEP: 81D108B0 
        Port:Se0/1          peer 10.48.64.75(2065) 
        Flow-Control-Tx  CW:20, Permitted:34; Rx CW:20, Granted:34; Op: Repeat 
        Congestion: Low(02), Flow Op: Half: 0/0 Reset 0/0 
        RIF = --no rif-- 
        Bytes:             554/513        Info-frames:           6/6 
        XID-frames:          5/4          UInfo-frames:          0/0 
        HPR saps: local 0x0, remote 0x4 
Total number of circuits connected: 2 
pathos#show qllc serial 0/1
Interface Serial0/1 
 vc 2 66620 
   Circuit State P4/D1, Logical Link State QLOpened 4000.3333.0000(04)->4000.7507.0000(04) 
   0 packets held 
 vc 1 55512 
   Circuit State P4/D1, Logical Link State QLOpened 4000.2222.0000(04)->4000.7507.ffff(04) 
   0 packets held 
pathos# 
pathos#show x25 interface  serial 0/1
SVC 1,  State: D1,  Interface: Serial0/1 
  Started 00:30:51, last input 00:30:50, output 00:30:50 
  Connects 55512 <--> 
   qllc 4000.2222.0000 
  Window size input: 7, output: 7 
  Packet size input: 128, output: 128 
  PS: 0  PR: 7  ACK: 6  Remote PR: 0  RCNT: 1  RNR: no 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 463/441 packets 8/7 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0 
SVC 2,  State: D1,  Interface: Serial0/1 
  Started 00:30:51, last input 00:30:50, output 00:30:50 
  Connects 66620 <--> 
   qllc 4000.3333.0000 
  Window size input: 7, output: 7 
  Packet size input: 128, output: 128 
  PS: 5  PR: 4  ACK: 2  Remote PR: 5  RCNT: 2  RNR: no 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 523/566 packets 13/12 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0 
pathos#

内莱 
nesle#show x25 route 
  #  Match                         Substitute          Route to 
  1  input-int Serial2                                 Serial0 
  2  input-int Serial3                                 Serial0 
  3  dest 555                                          Serial2 
  4  dest 666                                          Serial3 

nesle#show x25 interface serial 0
SVC 1,  State: D1,  Interface: Serial0 
  Started 00:32:47, last input 00:32:46, output 00:32:46 
  Connects 55512 <--> 2224 from Serial2 SVC 10 
  Window size input: 2, output: 2 
  Packet size input: 128, output: 128 
  PS: 7  PR: 0  ACK: 0  Remote PR: 6  RCNT: 0  RNR: no 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 441/463 packets 7/8 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0 
SVC 2,  State: D1,  Interface: Serial0 
  Started 00:32:47, last input 00:32:46, output 00:32:46 
  Connects 66620 <--> 123456789012345 from Serial3 SVC 1024 
  Window size input: 2, output: 2 
  Packet size input: 128, output: 128 
  PS: 4  PR: 5  ACK: 5  Remote PR: 2  RCNT: 0  RNR: no 
  Window is closed 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 566/523 packets 12/13 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0 
nesle#show x25 interface serial 2 
SVC 10,  State: D1,  Interface: Serial2 
  Started 00:32:51, last input 00:32:50, output 00:32:50 
  Connects 55512 <--> 2224 to Serial0 SVC 1 
  Window size input: 2, output: 2 
  Packet size input: 128, output: 128 
  PS: 0  PR: 7  ACK: 6  Remote PR: 0  RCNT: 1  RNR: no 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 463/441 packets 8/7 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0 
nesle#show x25 interface serial 3 
SVC 1024,  State: D1,  Interface: Serial3 
  Started 00:32:53, last input 00:32:52, output 00:32:52 
  Connects 66620 <--> 123456789012345 to Serial0 SVC 2 
  Window size input: 2, output: 2 
  Packet size input: 128, output: 128 
  PS: 5  PR: 4  ACK: 2  Remote PR: 5  RCNT: 2  RNR: no 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 523/566 packets 13/12 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0

那慕尔 
namur#show dspu 
dspu host OZDEN Serial1 (QLLC) PU STATUS Active 
     FRAMES RECEIVED 8 FRAMES SENT 8 
     LUs USED BY DSPU 0 LUs ACTIVE 0 
     LUs USED BY API 0 LUs ACTIVE 0 
     LUs ACTIVATED BY HOST BUT NOT USED 0 

namur#show x25 interface serial 1 
SVC 10,  State: D1,  Interface: Serial1 
  Started 00:34:55, last input 00:34:54, output 00:34:54 
  Connects 2224 <--> 
   qllc 
  Window size input: 7, output: 7 
  Packet size input: 128, output: 128 
  PS: 7  PR: 0  ACK: 0  Remote PR: 6  RCNT: 0  RNR: no 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 441/463 packets 7/8 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0 
namur#

古德 
goode#show dspu 
dspu host GOODE Serial1 (QLLC) PU STATUS Active 
     FRAMES RECEIVED 18 FRAMES SENT 18 
     LUs USED BY DSPU 0 LUs ACTIVE 0 
     LUs USED BY API 0 LUs ACTIVE 0 
     LUs ACTIVATED BY HOST BUT NOT USED 5 

goode#show x25 interface serial 1 
SVC 1024,  State: D1,  Interface: Serial1 
  Started 00:41:25, last input 00:41:25, output 00:41:25 
  Connects 123456789012345 <--> 
   qllc 
  Window size input: 2, output: 2 
  Packet size input: 128, output: 128 
  PS: 4  PR: 5  ACK: 5  Remote PR: 2  RCNT: 0  RNR: no 
  Window is closed 
  P/D state timeouts: 0  timer (secs): 0 
  data bytes 566/523 packets 12/13 Resets 0/0 RNRs 0/0 REJs 0/0 INTs 0/0 
goode#

故障排除

目前没有针对此配置的故障排除信息。

相关信息

修订历史记录

版本 发布日期 备注
1.0
09-Sep-2005
初始版本

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