[HECnet] Mapping - getting close

[Johnny Billquist]

On 2013-01-12 16:21, Johnny Billquist wrote:
On 2013-01-12 16:10, Peter Lothberg wrote:
If you ask me, I think this idea is dead. You cannot get a good
representation of how the topology really is from trying to walk nodes
using NCP.

(remove bridged ethernet that are not point-to-point with only 2
nodes).

Walk through the "known cir" and then "cir char" and build your own
connectivity tree with the metrics.

Plot all links

Apply DECnet routing rules and Colour the links that carry traffic
with the current metrics and/up/down condition, use two colours, one
for transmitt one for receive (as links can end up being simplex).

Well, it all depends on what you want to know. If you want to properly
understand the topology you also want to represent the topology of
bridged ethernet segments, as well as ethernets in general. NCP don't
have any clue about this.

Sure, if you want to only have Multinet ptp links, then it's easy. But
that would a rather severe restriction on the network technology.

We have ethernets (both bridged and local), as well as Cisco tunnels.
Both of which walking with NCP fails on.

By the way. One thing I have not even touched on yet is that another "restriction" in all this is that not all nodes who even talk NICE will allow random other machines to query them.

Take WXP for example...

	Johnny

-- 
Johnny Billquist                                   || "I'm on a bus
                                                                  ||   on a psychedelic trip
email: bqt at softjar.se                         ||   Reading murder books
pdp is alive!                                         ||   tryin' to stay hip" - B. Idol