DLSw Operation

[jay.cruz2739]

Hi Everyone,

I am having a hard time understanding DLSw. Is there anyone who can help me and give me atleast a basic understanding of how this technology works?

I am browsing the internet and the answers that i receive are way too technical as of the moment.

Thanks!

[acampbell]

Hi Jay,

This take me back a few years. DLSw (Token rings for SNA over IP)

Have a look at this link.

http://www.cisco.com/c/en/us/support/docs/ibm-technologies/data-link-switching-dlsw-data-link-switching-plus-dlsw-/12411-45.html

Regards

Alex

[jay.cruz2739]

Hi Alex,

Thanks for a prompt response.

I got a question, since it seems DLSw is used to tunnel L2 traffic. Does this mean that the Mainframe server behind the Router is the same subnet behind the other router?

(Mainframe) Server ==> Router 1 ==> WAN ==> Router 2 ==> Server that uses DLSw

                                      |==========DLSw Tunnel========|

[acampbell]

Hi Jay,

Look at section 4 from the link I sent you.

4. Ethernet to Ethernet over WAN

Router A
!
dlsw local-peer peer-id 150.150.1.1
dlsw remote-peer 0 tcp 150.150.2.1
dlsw bridge-group 1
!
interface Loopback0
 ip address 150.150.1.1 255.255.255.0
!
interface Serial0
 ip address 150.150.100.1 255.255.255.0
!
interface Ethernet0
 ip address 150.150.30.1 255.255.255.0
 bridge-group 1
!
bridge 1 protocol dec
!

Router B
!
dlsw local-peer peer-id 150.150.2.1
dlsw remote-peer 0 tcp 150.150.1.1
dlsw bridge-group 1
!
interface Loopback0
 ip address 150.150.2.1 255.255.255.0
!
interface Serial0
 ip address 150.150.100.2 255.255.255.0
!
interface Ethernet0
 ip address 150.150.40.1 255.255.255.0
 bridge-group 1
!
bridge 1 protocol dec

Note:  source-bridge ring-group is not required on either router.

So the subnets at either side of the WAN are different

Regards

Alex

[jay.cruz2739]

Thank you Alex.

[jay.cruz2739]

Hi,

Just a quick follow-up question.

Does the Ethernet 0 or the interface where the bridge-group command is configured needs to be route-able through out the entire network? or the only important thing to be routed is the loopback interface which is the local-peer id?

Thanks!

[jay.cruz2739]

Hi,

Just a quick follow-up question.

Does the Ethernet 0 or the interface where the bridge-group command is configured needs to be route-able through out the entire network? or the only important thing to be routed is the loopback interface which is the local-peer id?

Thanks!

[jay.cruz2739]

Hi,

Just a quick follow-up question.

Does the Ethernet 0 or the interface where the bridge-group command is configured needs to be route-able through out the entire network? or the only important thing to be routed is the loopback interface which is the local-peer id?

Thanks!