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| author | Dimitri Staessens <[email protected]> | 2021-05-16 16:06:39 +0200 |
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| committer | Dimitri Staessens <[email protected]> | 2021-05-16 16:06:39 +0200 |
| commit | 333fb90a6635a0641ada1427e487b1c9421d37ec (patch) | |
| tree | a9dc9d9a59e5d45d81e29d37621c9a5c68e7db91 | |
| parent | fb97ba2fedc020e4ad38c876c87935af0ea62816 (diff) | |
| download | website-333fb90a6635a0641ada1427e487b1c9421d37ec.tar.gz website-333fb90a6635a0641ada1427e487b1c9421d37ec.zip | |
concepts: Small addition to model
| -rw-r--r-- | content/en/docs/Concepts/ouroboros-model.md | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/content/en/docs/Concepts/ouroboros-model.md b/content/en/docs/Concepts/ouroboros-model.md index 65f0ea0..f2663d9 100644 --- a/content/en/docs/Concepts/ouroboros-model.md +++ b/content/en/docs/Concepts/ouroboros-model.md @@ -312,15 +312,14 @@ forwarding element in the figure above. Now, each routing element needs to disseminate information to _all_ other nodes in the layer, in other words, it needs to _broadcast_ link state information. The RE is inside of a unicast layer, and unicast layers don't do that, so the -REs will need the help of a broadcast layer. That is what is drawn in -the figure above. Now, at first this may look weird, but it is -_exactly_ what an IP network does (within a subnet)! With the Open +REs will need the help of a broadcast layer[^11]. That is what is +drawn in the figure above. Now, at first this may look weird, but it +is _exactly_ what an IP network does (within a subnet)! With the Open Shortest Path First (OSPF) protocol, it uses IP multicast between all OSPF routers in the domain, and with IS-IS, it leverages the layer 2 network as the broadcast layer. I will refer to my blog post on [multicast](/blog/2021/04/02/how-does-ouroboros-do-anycast-and-multicast/) -if you need a bit more elaboration on this. - +if you need a bit more elaboration on how this maps to the IP world. [UNDER CONSTRUCTION...] @@ -412,3 +411,10 @@ if you need a bit more elaboration on this. limited in size because of time delays in disseminating link state information between the nodes, and the amount to be disseminated. We will address this a bit later in the discourse. + +[^11]:Unfortunately, the functionality of the Routing Element and the + broadcast layer are often implemented as an unfortunate human + engineer that has to subject himself to one of the most inhuman + chores imaginable: manually typing IP destinations and netmasks + into the routing tables of a wonky piece of hardware using the + most ill-designed command line interface seen this side of 1974. |