Router Naming Convention for att.net, 201603

Regular Expressions:

^([a-z\d]+cce9)-[a-z\d]+-\d+\.infra\.cdn\.att\.net$
^([a-z]+\d+\.[a-z\d]+\.ip)\.att\.net$

Statistics:

Training routers with at least two clustered interfaces: 15
Positive Predictive Value: 0.974
True Positives (green): 37
False Positives (red): 1
IP literals extracted (red): 0
False Negatives, identifier extracted (orange): 2
False Negatives, not matched: 0
Training routers with a single interface in suffix: 5

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:

		chcil00002cce9
204.127.148.6	+	chcil00002cce9-irb-2.infra.cdn.att.net

		ciail00001cce9
12.120.85.65	+	ciail00001cce9-ae120-100.infra.cdn.att.net
12.120.85.69	+	ciail00001cce9-ae120-102.infra.cdn.att.net
204.127.180.5	+	ciail00001cce9-irb-2.infra.cdn.att.net

		ciail00002cce9
12.120.85.75	+	ciail00002cce9-ae120-200.infra.cdn.att.net
12.120.85.79	+	ciail00002cce9-ae120-202.infra.cdn.att.net
204.127.180.6	+	ciail00002cce9-irb-2.infra.cdn.att.net

		cr1.cgcil.ip
12.122.99.22	+	cr1.cgcil.ip.att.net
12.122.133.106	+	cr1.cgcil.ip.att.net

		cr1.n54ny.ip
12.122.2.13	+	cr1.n54ny.ip.att.net
12.122.131.94	+	cr1.n54ny.ip.att.net

		cr83.sl9mo.ip
12.122.112.130	+	cr83.sl9mo.ip.att.net
12.122.112.138	+	cr83.sl9mo.ip.att.net

		dlltx00002cce9
204.127.147.6	+	dlltx00002cce9-irb-2.infra.cdn.att.net

		gar1.miufl.ip
12.122.143.157	+	gar1.miufl.ip.att.net

		gar1.nyzny.ip
12.122.130.125	+	gar1.nyzny.ip.att.net
12.122.131.117	+	gar1.nyzny.ip.att.net

		gar2.ascva.ip
12.122.134.117	+	gar2.ascva.ip.att.net
12.122.135.121	+	gar2.ascva.ip.att.net

		gar2.nylny.ip
12.122.130.49	+	gar2.nylny.ip.att.net
12.122.131.41	+	gar2.nylny.ip.att.net

		gbr1.mdtva.ip
12.122.4.13	+	gbr1.mdtva.ip.att.net
12.122.4.97	+	gbr1.mdtva.ip.att.net
12.127.15.13	+	gbr1.mdtva.ip.att.net
12.127.15.9	-	gbr2.mdtva.ip.att.net

		iraca00001cce9
12.120.81.65	+	iraca00001cce9-ae120-100.infra.cdn.att.net
204.127.179.5	+	iraca00001cce9-irb-2.infra.cdn.att.net

		iraca00002cce9
12.120.81.83	+	iraca00002cce9-ae120-204.infra.cdn.att.net
204.127.179.6	+	iraca00002cce9-irb-2.infra.cdn.att.net

		lsaca00002cce9
204.127.149.6	+	lsaca00002cce9-irb-2.infra.cdn.att.net

		rd3tx00001cce9
12.120.142.65	+	rd3tx00001cce9-ae120-100.infra.cdn.att.net
12.120.142.69	+	rd3tx00001cce9-ae120-102.infra.cdn.att.net
204.127.181.5	+	rd3tx00001cce9-irb-2.infra.cdn.att.net

		rd3tx00002cce9
12.120.142.75	+	rd3tx00002cce9-ae120-200.infra.cdn.att.net
12.120.142.79	+	rd3tx00002cce9-ae120-202.infra.cdn.att.net
204.127.181.6	+	rd3tx00002cce9-irb-2.infra.cdn.att.net

		scaca00001cce9
12.120.183.69	+	scaca00001cce9-ae120-102.infra.cdn.att.net
12.120.183.73	+	scaca00001cce9-ae120-104.infra.cdn.att.net
204.127.183.5	+	scaca00001cce9-irb-2.infra.cdn.att.net

		scaca00002cce9
12.120.183.85	+	scaca00002cce9-ae120-200.infra.cdn.att.net
12.120.183.93	+	scaca00002cce9-ae120-204.infra.cdn.att.net
204.127.183.6	+	scaca00002cce9-irb-2.infra.cdn.att.net

		tckga00002cce9
12.120.146.85	+	tckga00002cce9-ae120-200.infra.cdn.att.net

12.127.15.5	-	dc2.mdtva.ip.att.net
12.122.4.17	!	gbr1.mdtva.ip.att.net