From: Mark Stover (mstover@xxxxxxxxx)
Date: Mon Jan 15 2001 - 12:52:27 GMT-3
>From the DLSw Design Guide, please tell me if this is wrong:
After configuring border peers and peer groups, the same fully meshed connectiv
ity is possible without the overhead. In the after network, two peer groups are
defined (Group 40 and Group 50). Within each group, one or more peers are conf
igured as border peers. Every peer within Group 40 establishes a peer connectio
n with border peer A (BPA). Every peer within Group 50 establishes a peer conne
ction with border peer B (BPB). The border peers establish a peer connection wi
th each other. When a peer in Group 40 wants to find a resource, it sends a sin
gle explorer to its border peer. The border peer forwards this explorer to ever
y peer in its group and to every other border peer. BPB, after receiving this e
xplorer, forwards it to every peer in its group. When the resource is found (in
this case at B1), a positive reply flows back to the origin (A1) via the two b
order peers. At this point A1 establishes a direct peer connection to B1. Peer
connections that are established via border peers without the benefit of precon
figuration are called peer-on-demand connections. The rules for establishing on
-demand peers are defined in the dlsw peer-on-demand-defaults tcp command in ea
ch router.
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Kevin Mahoney
> Sent: Monday, January 15, 2001 10:32 AM
> To: Lykourgiotis Paraskevas; ccielab@groupstudy.com
> Subject: RE: DLSW Question-Peer groups
>
>
> Yes it has to be a border peer in its own group.
>
> Kevin
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Lykourgiotis Paraskevas
> Sent: Monday, January 15, 2001 8:42 AM
> To: ccielab@groupstudy.com
> Subject: DLSW Question-Peer groups
>
>
> Hi all.
> One more DLSW question.
>
> Suppose the following scenario :
>
> r1---r2---r3
>
> r1 and r2 are in a peer group where r2 is the border peer.
> r2 has r1 and r3 as remote peers.
> The question: Does r3 have to be in a peer group (by himself)
> to assure that
> explorers from r1 are always sent to r3 also?
> Me, I thought not until I found a Cisco presentation for DLSW
> saying that r3
> has to be in a peer-group also (i.e. in a second peer-group
> having only r3
> as a member). Why?
>
> TIA
> Paraskevas
>
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