Router Naming Convention for xfernet.net, 201304

Router Naming Convention for xfernet.net, 201304

Regular Expressions:

^[^\.]+\.([a-z]+\d+\.lax01)\.xfernet\.net$

Statistics:

Training routers with at least two clustered interfaces: 4
Positive Predictive Value: 0.917
True Positives (green): 11
False Positives (red): 1
IP literals extracted (red): 0
False Negatives, identifier extracted (orange): 1
False Negatives, not matched: 2
Training routers with a single interface in suffix: 1

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:

		ar5.lax01
67.43.160.146	+	ge-49.ar5.lax01.xfernet.net
67.43.160.150	+	ge-50.ar5.lax01.xfernet.net

		ar7.lax01
67.43.160.138	+	ge-49.ar7.lax01.xfernet.net
67.43.160.142	+	ge-50.ar7.lax01.xfernet.net

		cr1.lax01
64.208.170.38	~	10g.glbx.lax01.xfernet.net
198.172.90.2	~	10g.ntt.lax01.xfernet.net
67.43.160.233	+	xe-1-2.cr1.lax01.xfernet.net
206.223.143.164		pihost.com.any2ix.coresite

		ds1.lax01
67.43.160.78	+	pc2.ds1.lax01.xfernet.net
67.43.160.70	+	pc4.ds1.lax01.xfernet.net

		ds2.lax01
67.43.160.145	+	ge-2-2.ds2.lax01.xfernet.net
67.43.160.137	+	ge-2-3.ds2.lax01.xfernet.net
67.43.160.193	+	ge-2-6.ds2.lax01.xfernet.net
67.43.160.66	+	pc1.ds2.lax01.xfernet.net
67.43.160.74	+	pc2.ds2.lax01.xfernet.net

67.43.160.77	-	pc1.cr2.lax01.xfernet.net
67.43.160.229	!	vl-1.ds1.lax01.xfernet.net