In this configuration, two different X.25 resources (we have used dspu-host to simulate the end devices in this setup). For more information on downstream physical unit (DSPU), refer to these documents:
These two end devices communicate with different adapters in the mainframe site over X.25. The remote X.25 resources were configured for different destination addresses (in different lengths and different addresses). Any incoming call whose X.121 destination address matches the router's "qllc dlsw subaddress" is dispatched to Data Link Switching Plus (DLSw+) (with an ID.STN IND). When DLSw+ receives a "Can You Reach" inquiry about a virtual MAC address in the pool, the Qualified Logical Link Control (QLLC) code attempts to set up a Virtual Circuit (VC) to the X.121 address that maps to the virtual MAC address specified. If an incoming call is received, QLLC sends an ID.STN.IND with a virtual MAC address from the pool to DLSw+.
There are no specific requirements for this document.
The information in this document is based on the software and hardware versions:
Cisco IOS® Software Release 12.2(6a) was used in Pathos (Cisco 2612)
Cisco IOS Software Release 12.0(20) was used in Namur & Goode (Cisco 2500, Cisco 4000)
Cisco IOS Software Release 12.1(7 ) was used in Nesle (Cisco 4500)
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
For more information on document conventions, refer to the Cisco Technical Tips Conventions.
In this section, you are presented with the information to configure the features described in this document.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool (registered customers only) .
The MAC addresses of the mainframe are as follows:
4000.7507.0000
4000.7507.ffff
This document uses the configurations shown here:
Cisco 7507 (Meatfeast) |
---|
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 |
Cisco 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 ! |
This section provides information you can use to confirm your configuration is active.
Certain show commands are supported by the Output Interpreter Tool (registered customers only) , which allows you to view an analysis of show command output.
show llc2—Displays the LLC2 connections active in the router.
show version—Displays software version information.
show dlsw peer—Displays dlsw peer connection information.
show dlsw circuit detail—Displays the details of the DLSW circuit.
show qllc serial 0/1—Displays information on QLLC serial 0/1.
show x25 interface serial 0/1—Displays the status of the line and protocol on X.25 serial interface 0/1.
show x25 route—Displays the X.25 routing table.
show x25 interface serial 0—Displays the status of the line and protocol on X.25 serial interface 0.
show dspu—Displays the status of the DSPU feature.
show x25 interface serial 1—Displays the status of the line and protocol on X.25 serial interface 1.
Meatfeast |
---|
#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 |
Pathos |
---|
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# |
Nesle |
---|
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 |
Namur |
---|
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# |
Goode |
---|
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# |
There is currently no specific troubleshooting information available for this configuration.
Revision | Publish Date | Comments |
---|---|---|
1.0 |
09-Sep-2005 |
Initial Release |