DLSw peer query-workable or not???

[wmmak]

Dear all,

E.g.

SNA1-(bridge)RouterA--RouterB--RouterC(bridge)--SNA2

For some reasons, RouterA cannot form dlsw peer to routerC.

May I know is it work if RouterA form dlsw peer to RouterB, and then RouterB form dlsw peer to RouterC, so that SNA1 and SNA2 can communicate.

If it is not work, how about the followings?

SNA1-(bridge)RouterA--RouterA'(bridge)RouterB--RouterC(bridge)--SNA2

RouterA form dlsw RouterA', and then bridge to RouterB, and then RouterB form dlsw peer to RouterC??

Many Thanks a lot in advance

mak

[mbinzer]

Hi,

a peer from router A to router B and then a peer from router B to router C will not work. Dlsw will never forward data traffic out on a peer when it received it on another peer.

Your second model is something you can do. Meaning you would need another router. Have a peer from router A to router A1 then bridge the traffic onto a lan segment and pick it back up with router B which has a peer to rotuer C which finally delivers the frames to the destination lan segment.

We have customers doing this for administrative reasons. If your end systems are i.e. on ethernet and you put a ethernet segmenet in the middle it will work. If your end systems are on tokenrings and you put a ethernet segment in the middle than it depends on your end systems to obey the largest frame they get signaled from the dlsw router.

That means you need to pay attention when the largest frames possible on your media differ between the original media's you are using and your "transit segment".

In any case. Is there a technical reason why router A can not peer to Router C directly? Or is it a administrative boundary. I.e. two companys. If it is a technical reason than you are most likely better off to investigate and fix the technical problem.

thanks...

Matthias

[wmmak]

Dear Matthias,

Surely, it is not technical reason :>

Regards,

mak