Local-Area Networks and LAN Switching - CCIE Routing and Switching Exam Certification Guide - page 147

RSRB with TCP Encapsulation Figure 4-27

Virtual ring 10

Router A Router B

1 2

6

5

192.168.1.1/24 192.168.2.1/24

Host A

Host B

Example 4-10 Configuration of RSRB with TCP Encapsulation

!Router A
source-bridge ring-group 10
source-bridge remote-peer 10 tcp 192.168.1.1
source-bridge remote-peer 10 tcp 192.168.2.1 local-ack
!
interface tokenring 0
ip address 192.168.1.1 255.255.255.0
source-bridge 1 5 10
source-bridge spanning

!Router B
source-bridge ring-group 10
source-bridge remote-peer 10 tcp 192.168.2.1
source-bridge remote-peer 10 tcp 192.168.1.1 local-ack
!
interface tokenring 0
ip address 192.168.2.1 255.255.255.0
source-bridge 2 6 10
source-bridge spanning

The RIF of a source route frame from Host A to reach Host B routes from Ring 1, Bridge 5,
Ring 10, Bridge 6, to Ring 2. In hex, the RIF is 0830.0015.00a6.0020.

DLSw+

DLSw version 2 is documented in RFC 2166 and DLSw version 1 is documented in RFC 1795.
It was originally submitted by IBM to the IETF as RFC 1434 to overcome some of the limita-
tions of SRB networks, especially in WAN networks. DLSw serves as a replacement of SRB
and serves SNA data-link connections (DLC) and NetBIOS traffic.