Router Naming Convention for twttr.com, 201207

Regular Expressions:

  1. ^[^\.]+\.([a-z]+\d+-[a-z]+\d+)\.twttr\.com$

Statistics:

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:

atl1-er1
199.16.159.73+xe-0-0-0.atl1-er1.twttr.com
199.16.159.75+xe-1-0-0.atl1-er1.twttr.com
199.16.159.61+xe-2-0-0.atl1-er1.twttr.com
199.16.159.63+xe-3-0-0.atl1-er1.twttr.com
 
atl1-er2
199.16.159.69+xe-0-0-0.atl1-er2.twttr.com
199.16.159.71+xe-1-0-0.atl1-er2.twttr.com
199.16.159.67-xe-3-0-0.atl2-er1.twttr.com
 
atl2-cr1
199.16.159.81+ae60.atl2-cr1.twttr.com
199.16.159.104+xe-0-3-0.atl2-cr1.twttr.com
199.16.159.91!xe-1-3-0.atl2-cr2.twttr.com
 
atl2-cr2
199.16.159.83+ae60.atl2-cr2.twttr.com
199.16.159.106+xe-0-0-0.atl2-cr2.twttr.com
4.53.233.42twitter-inc.edge1.atlanta4.level3.net
 
iad1-cr1
199.16.159.84+ae60.iad1-cr1.twttr.com
209.66.115.22209.66.115.22.t01337-06.above.net
4.53.114.102twitter-inc.edge2.washington4.level3.net
 
iad1-cr2
199.16.159.86+ae60.iad1-cr2.twttr.com
199.16.159.57+xe-0-1-1.iad1-cr2.twttr.com
199.16.159.59+xe-1-1-1.iad1-cr2.twttr.com
209.66.115.18209.66.115.18.t01337-05.above.net
173.241.131.74twitter-gw.ip4.tinet.net
 
pao1-cr1
199.16.159.85+ae60.pao1-cr1.twttr.com
199.16.159.16+xe-0-1-0.pao1-cr1.twttr.com
199.16.159.20+xe-1-0-1.pao1-cr1.twttr.com
209.66.115.10209.66.115.10.t01337-03.above.net
 
pao1-cr2
199.16.159.87+ae60.pao1-cr2.twttr.com
199.16.159.1+xe-0-3-1.pao1-cr2.twttr.com
4.59.0.238twitter-inc.car1.sanjose2.level3.net
 
sjc2-cr1
199.16.159.80+ae60.sjc2-cr1.twttr.com
199.16.159.10+xe-1-1-1.sjc2-cr1.twttr.com
209.66.115.2209.66.115.2.t01337-01.above.net
4.71.113.194twitter-inc.car3.sanjose1.level3.net
 
sjc2-cr2
199.16.159.82+ae60.sjc2-cr2.twttr.com
199.16.159.44+xe-0-2-0.sjc2-cr2.twttr.com
199.16.159.23+xe-0-3-0.sjc2-cr2.twttr.com
199.16.159.9+xe-0-3-1.sjc2-cr2.twttr.com
199.16.159.5+xe-1-0-0.sjc2-cr2.twttr.com
199.16.159.11+xe-1-1-1.sjc2-cr2.twttr.com
216.221.156.10twitter-gw.ip4.tinet.net
 
smf1-er1
199.16.159.29+ae51.smf1-er1.twttr.com
199.16.159.37+xe-0-0-0.smf1-er1.twttr.com
199.16.159.49+xe-10-0-0.smf1-er1.twttr.com
 
smf1-er2
199.16.159.53+ae50.smf1-er2.twttr.com
199.16.159.33+ae51.smf1-er2.twttr.com
199.16.159.41+xe-1-0-0.smf1-er2.twttr.com
199.16.159.55+xe-11-0-0.smf1-er2.twttr.com