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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!ux1.cso.uiuc.edu!news.cso.uiuc.edu!ph-meter.beckman.uiuc.edu!chris
- From: chris@ph-meter.beckman.uiuc.edu (Chris Gressley)
- Subject: Re: CLAIM: Seed Routers are not Nodes
- References: <chris.722141659@ph-meter.beckman.uiuc.edu> <winders-191192110001@macwinders.support.apple.com>
- Message-ID: <chris.722214001@ph-meter.beckman.uiuc.edu>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Date: Thu, 19 Nov 1992 23:00:01 GMT
- Lines: 33
-
- winders@aux.support.apple.com (Scott Winders) writes:
-
- >2. All AppleTalk nodes need to aquire their network address dynamically.
- >There are no if, ands, or butts on this particular question. If the
- >network addresses are assigned statically, you may have the problem you
- >describe with your two seed routers.
-
- I heard back from my developer. He now concedes that a router is a
- node, but says that all 'nodes' are not alike. He says that router
- nodes behave differently from nonrouter nodes in some cases. Because
- routers have port descriptors, seed routers HAVE to obtain their
- network and node numbers statically. The developer's opinion is that
- this is one of the inconsistencies in Inside AppleTalk, and that the
- routers follow the AppleTalk specs "to the letter". The developer
- tells me that I can only bring up one seed router per network. And if
- I really want to have more than one seed router on a single network,
- then I have to bring up the other routers as nonseed, let the router
- dynamically obtain a node number, then bring the router up as a seed
- router.
-
- Of course this doesn't take into account the situation where
-
- 1) a seed router goes down
- 2) another node is turned on for the first time on the network
- 3) the new node obtains the seed router's node number
- 4) the seed router comes back up
- 5) and there now exists a node number conflict.
-
- What else can I tell my developer to convince him that he is wrong?
-
- Thanks.
-
- Chris
-