Router Naming Convention for content-core.net, 201708

Regular Expressions:

^.+1-[^-]+2\.[a-z]+\d+\.content-core\.net$
^[^\.]+\.r1\.[a-z]+\d+\.content-core\.net$
^[^\.]+\.[a-z]+\d+\.([a-z]+\d+)\.content-core\.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: 3
Training routers with a single interface in suffix: 3

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:

		fra3
81.17.112.225	~	cr1.nue1.content-core.net
81.17.112.81	+	po1-3010.er1.fra3.content-core.net
212.123.127.162	+	tenge-3-2-56.cr2.fra3.content-core.net
80.81.192.32	*	tenge1-2.cr2.fra3.content-core.net

		fra3
81.17.112.33	~	cr1.nue1.content-core.net
81.17.112.82	*	po1-3010.er2.fra3.content-core.net
80.81.193.32	!	tenge2-3.cr3.fra3.content-core.net

		muc1
212.123.127.242	*	te1-1-39.cr2.muc2.content-core.net
80.81.202.1	+	te3-1.cr3.muc1.content-core.net
62.140.25.10		tenge-1-3.cr2.muc1.contenet-core.net
62.140.24.174		ip-exchange.bar1.munich1.level3.net

		muc2
212.123.127.241	+	te1-2-39.cr1.muc2.content-core.net
212.202.214.34	+	te1-3-10.cr1.muc2.content-core.net
212.123.123.98	+	tenge1-1-14.cr1.muc2.content-core.net

		nbg1
81.17.112.230	~	cr2.muc2.content-core.net
212.123.127.243	+	te4-1-39.cr1.nbg1.content-core.net
81.17.112.65	-	te8-1.cr1.nue1.content-core.net
212.123.127.201	+	tenge-1-1-58.cr1.nbg1.content-core.net
212.123.123.121	+	tenge1-1-40.cr1.nbg1.content-core.net
134.222.107.54	+	tenge1-3.cr1.nbg1.content-core.net

		nbg2
212.123.127.169	+	ge2-3-43.cr2.nbg2.content-core.net
81.17.113.94		te10-48.r1.p1.nue.content-colo.net
212.123.105.145		gw.cr1.nbg2.ip-exchang.de

		nbg3
82.149.64.29	+	atm3-0-293.ca1.nbg3.content-core.net
212.123.123.118	+	fe0-1-200.ca1.nbg3.content-core.net

		nue2
212.162.19.34	*	tenge-1-3.cr2.nbg1.content-core.net
81.17.112.90	+	vl3401.er1.nue2.content-core.net
81.17.112.66	*	vl3410.r1.nue2.content-core.net

81.17.112.206	*	br1020.r1.nue2.content-core.net
81.17.113.5		ragg1.r1.nue2.content-colo.net
81.17.113.45		ragg4.r1.nue2.content-colo.net

81.17.113.109	*	te20-8.r1.nue2.content-core.net
81.17.113.101		te40-12.r1.nue2.content-colo.net

81.17.114.5	*	ragg1024.r1.muc1.content-core.net