Router Naming Convention for ntl.com, 201207

Regular Expressions:

1. ^cpc1-[a-z]+\d+-5-0-cust\d+\.[a-z\d]+\.cable\.ntl\.com$
2. ^([a-z]+\d+-[a-z]+\d+-\d+-\d+)-[a-z]+\d+\.([a-z]+\.broadband)\.ntl\.com$
3. ^([a-z\d]+-.+1-[a-z\d]+)-[a-z\d]+-[^-]+\.ntl\.com$
4. ^[a-z]+\d+-([a-z]+1)-.+\.ntl\.com$

Statistics:

• Training routers with at least two clustered interfaces: 12
• Positive Predictive Value: 0.689
• True Positives (green): 71
• False Positives (red): 32
• IP literals extracted (red): 0
• False Negatives, identifier extracted (orange): 0
• False Negatives, not matched: 82
• Training routers with a single interface in suffix: 14

Legend:

Evaluation against training data: