Cisco Systems BC-281 manual DLSw+ over Qllc Configuration Examples, BC-325

Configuring Data-Link Switching Plus

DLSw+ Configuration Examples

interface serial 0 mtu 3000

no ip address encapsulation frame-relay frame-relay lmi-type ansi frame-relay map dlsw 30

DLSw+ over QLLC Configuration Examples

The following three examples describe QLLC support for DLSw+.

Example 1

In this configuration, DLSw+ is used to allow remote devices to connect to a DLSw+ network over an X.25 public packet-switched network.

In this example, all QLLC traffic is addressed to destination address 4000.1161.1234, which is the MAC address of the FEP.

The remote X.25-attached IBM 3174 cluster controller is given a virtual MAC address of 1000.0000.0001. This virtual MAC address is mapped to the X.121 address of the 3174 (31104150101) in the X.25 attached router.

interface serial 0 encapsulation x25

x25 address 3110212011

x25 map qllc 1000.0000.0001 31104150101 qllc dlsw partner 4000.1611.1234

Example 2

In this configuration, a single IBM 3174 cluster controller needs to communicate with both an AS/400 and a FEP. The FEP is associated with subaddress 150101 and the AS/400 is associated with subaddress 151102.

If an X.25 call comes in for 33204150101, the call is mapped to the FEP and forwarded to MAC address 4000.1161.1234. The IBM 3174 appears to the FEP as a Token Ring-attached resource with MAC address 1000.0000.0001. The IBM 3174 uses a source SAP of 04 when communicating with the FEP, and a source SAP of 08 when communicating with the AS/400.

interface serial 0
encapsulation x25
x25	address 31102
x25	map qllc 1000.0000.0001	33204
qllc dlsw subaddress 150101		partner 4000.1161.1234
qllc dlsw subaddress 150102		partner 4000.2034.5678 sap 04 08

	Cisco IOS Bridging and IBM Networking Configuration Guide
78-11737-02		BC-325