Router Naming Convention for ntt.com.sg, 201104

Regular Expressions:

^[a-z\d]+-[^\.]+\.([a-z]+\d+\.sgp\d+)\.ntt\.com\.sg$

Statistics:

Training routers with at least two clustered interfaces: 8
Positive Predictive Value: 1.000
True Positives (green): 17
False Positives (red): 0
IP literals extracted (red): 0
False Negatives, identifier extracted (orange): 0
False Negatives, not matched: 1
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:

		ar001.sgp02
58.65.16.38	+	mpop01-evc-1201.ar001.sgp02.ntt.com.sg
58.65.16.42	+	mpop01-evc-1202.ar001.sgp02.ntt.com.sg
202.79.183.245		sg-idc1-pe2a-1401.st-mp1.eznetsols.com
202.79.183.249		sg-idc1-pe2a-1402.st-mp1.eznetsols.com
202.79.183.253		sg-idc1-pe2a-1403.st-mp1.eznetsols.com
119.75.193.165		host-119-75-193-165.lga.net.sg
119.75.193.69		host-119-75-193-69.lga.net.sg
203.92.72.209		host-203-92-72-209.lga.net.sg
203.92.76.196		host-203-92-76-196.lga.net.sg
203.92.80.145		host-203-92-80-145.lga.net.sg
203.92.82.21		host-203-92-82-21.lga.net.sg
203.92.82.49		host-203-92-82-49.lga.net.sg
203.92.83.113		host-203-92-83-113.lga.net.sg
203.92.93.9		host-203-92-93-9.lga.net.sg
202.172.36.101		101.202-172-36.static.qala.com.sg
202.172.51.109		109.202-172-51.static.qala.com.sg
210.193.61.113		113.210-193-61.unknown.qala.com.sg
202.128.192.217		217.202-128-192.unknown.qala.com.sg
202.128.192.29		29.202-128-192.unknown.qala.com.sg

		ar002.sgp01
116.51.1.2	+	ge-0-1-10.ar002.sgp01.ntt.com.sg
116.51.1.130	+	ge-0-1-11.ar002.sgp01.ntt.com.sg

		ar003.sgp01
116.51.1.3	+	ge-0-1-10.ar003.sgp01.ntt.com.sg
116.51.1.131	+	ge-0-1-11.ar003.sgp01.ntt.com.sg

		ar005.sgp01
116.51.1.11	+	fe-0-0-10.ar005.sgp01.ntt.com.sg
116.51.1.139	+	fe-0-0-11.ar005.sgp01.ntt.com.sg

		br001.sgp02
116.51.3.29	+	ae-1.br001.sgp02.ntt.com.sg
116.51.0.13	~	br001.sgp02.ntt.com.sg
116.51.3.21	+	ge-1-1-0-0.br001.sgp02.ntt.com.sg
129.250.13.66		ge-0-0-3.r20.sngpsi02.sg.ce.gin.ntt.net
129.250.13.26		ge-2-1-2.r02.sngpsi02.sg.ce.gin.ntt.net
63.218.229.142		ntt.ge9-32.br01.sin02.pccwbtn.net

		br001.sgp03
116.51.3.30	+	ae-1.br001.sgp03.ntt.com.sg
116.51.1.14	+	fe-1-1-0-10.br001.sgp03.ntt.com.sg
116.51.1.142	+	fe-1-1-0-11.br001.sgp03.ntt.com.sg
202.126.173.174		unknown.net.reach.com

		crs001.sgp01
116.51.1.8	+	vl-10.crs001.sgp01.ntt.com.sg
116.51.1.136	+	vl-11.crs001.sgp01.ntt.com.sg

		crs004.sgp01
116.51.1.5	+	ge-0-1-10.crs004.sgp01.ntt.com.sg
116.51.1.133	+	ge-0-1-11.crs004.sgp01.ntt.com.sg

116.51.3.22	o	ge-1.starhub.br001.sgp02.ntt.com.sg
203.118.5.17		anatll10.starhub.net.sg
203.118.7.17		anatll10.starhub.net.sg