Router Naming Convention for twttr.com, 201110

Regular Expressions:

  1. ^xe-\d+-\d+-\d+\.([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:

atl2-cr1
199.16.159.100+xe-1-0-0.atl2-cr1.twttr.com
 
iad1-cr1
199.16.159.47+xe-0-2-0.iad1-cr1.twttr.com
4.53.114.102twitter-inc.edge2.washington4.level3.net
 
iad1-cr2
199.16.159.45+xe-0-2-0.iad1-cr2.twttr.com
199.16.159.59+xe-1-1-1.iad1-cr2.twttr.com
4.53.114.82twitter-inc.edge2.washington4.level3.net
173.241.131.74twitter-gw.ip4.tinet.net
 
pao1-cr1
198.32.176.123~paix1.cr1.pao1.twttr.com
199.16.159.0+xe-0-3-1.pao1-cr1.twttr.com
199.16.159.2+xe-1-1-0.pao1-cr1.twttr.com
 
pao1-cr2
199.16.159.3+xe-1-1-1.pao1-cr2.twttr.com
199.16.159.87+xe-1-3-1.pao1-cr2.twttr.com
209.66.115.14209.66.115.14.t01337-04.above.net
4.59.0.238twitter-inc.car1.sanjose2.level3.net
 
sjc2-cr2
199.16.159.9+xe-0-3-1.sjc2-cr2.twttr.com
199.16.159.11+xe-1-1-1.sjc2-cr2.twttr.com
209.66.115.6209.66.115.6.t01337-02.above.net
216.221.156.10twitter-gw.ip4.tinet.net
 
smf1-er1
199.16.159.29+xe-1-0-0.smf1-er1.twttr.com
199.16.159.49+xe-10-0-0.smf1-er1.twttr.com
199.16.159.51+xe-11-0-0.smf1-er1.twttr.com
 
smf1-er2
199.16.159.33+xe-0-0-0.smf1-er2.twttr.com
199.16.159.41+xe-1-0-0.smf1-er2.twttr.com
199.16.159.53+xe-10-0-0.smf1-er2.twttr.com
199.16.159.55+xe-11-0-0.smf1-er2.twttr.com