Router Naming Convention for nodefour.net, 201104

Regular Expressions:

^(sw\d+-h\d+)-[a-z\d]+-[^\.]+\.dc2\.nodefour\.net$
^(.+)-[^-]+-([a-z]+\.dc\d+)\.nodefour\.net$

Statistics:

Training routers with at least two clustered interfaces: 9
Positive Predictive Value: 0.947
True Positives (green): 18
False Positives (red): 1
IP literals extracted (red): 0
False Negatives, identifier extracted (orange): 4
False Negatives, not matched: 5
Training routers with a single interface in suffix: 2

Legend:

Green	+	Inferred identifier, true positive when evaluated against training data
Orange	-	Inferred identifier, false negative when evaluated against training data
Red	!	Inferred identifier, false positive when evaluated against training data
Red	x	Inferred identifier, but contains part of IP address literal embedded in hostname
	~	False negative, not matched
	o	No regex matched the interface, but the interface was the only interface in this suffix on the router
	*	A filter regex matched the interface

Evaluation against training data:

		mx01\|dry.dc2
83.166.172.245	-	mx01-ge1.1.9-v703-dry.dc2.nodefour.net
83.166.164.21	+	mx01-xe1.2.0-dry.dc2.nodefour.net
83.166.164.17	+	mx01-xe1.3.0-dry.dc2.nodefour.net

		mx01\|wkf.dc3
83.166.164.22	+	mx01-xe1.2.0-wkf.dc3.nodefour.net
83.166.164.25	+	mx01-xe1.3.0-wkf.dc3.nodefour.net

		mx02\|dry.dc2
83.166.164.38	+	mx02-xe1.2.0-dry.dc2.nodefour.net
83.166.164.18	+	mx02-xe1.3.0-dry.dc2.nodefour.net
83.166.167.241	!	sw02-h1-ge-5-1-dry.dc2.nodefour.net
83.166.168.97		kencomp-gate.node4.co.uk

		mx02\|wkf.dc3
83.166.164.29	+	mx02-xe1.2.0-wkf.dc3.nodefour.net
83.166.164.26	+	mx02-xe1.3.0-wkf.dc3.nodefour.net

		mx02-ge1.1.8\|dry.dc2
83.166.165.105	+	mx02-ge1.1.8-v706-dry.dc2.nodefour.net

		sw01-h2
83.166.167.250	+	sw01-h2-ge-0-1-dry.dc2.nodefour.net
83.166.167.245	+	sw01-h2-ge-0-2-dry.dc2.nodefour.net

		sw02-h1
83.166.160.254	-	mx01-ge1.1.9-v11-dry.dc1.nodefour.net
83.166.172.254	+	sw02-h1-ge-3-7-dry.dc2.nodefour.net
83.166.172.246	+	sw02-h1-v703-dry.dc2.nodefour.net

		sw02-h2
83.166.167.254	+	sw02-h2-ge-0-1-dry.dc2.nodefour.net
83.166.167.246	+	sw02-h2-ge-0-2-dry.dc2.nodefour.net

		sw03-h2
83.166.167.238	+	sw03-h2-ge-0-1-dry.dc2.nodefour.net
83.166.165.25	+	sw03-h2-ge-0-2-dry.dc2.nodefour.net

		sw04-h2
83.166.167.242	+	sw04-h2-ge-0-1-dry.dc2.nodefour.net
83.166.165.26	+	sw04-h2-ge-0-2-dry.dc2.nodefour.net

212.187.136.182	~	ge-0-2.l3.man.nodefour.net
83.166.164.81	~	mx-01-xe1.3.0.4-man.tc.nodefour.net
83.166.164.30	~	mx01-xe1.2.0-man.tc.nodefour.net

83.166.160.244	-	mx02-ge1.1.9-v11-dry.dc1.nodefour.net
83.166.172.238	-	sw01-h1-v701-dry.dc2.nodefour.net

195.66.224.135	~	ge-0-1.linx.lon.nodefour.net
83.166.164.77	~	mx01-xe0.0.1-lon.thn.nodefour.net

83.166.164.34	o	mx01-xe2.0.0-lon.gs.nodefour.net