oleibzd01.ext.ti.com has no NS records.
NS records for this zone are defined at ext.ti.com.
NS records for this zone are defined at ext.ti.com.
Question and response
Question
dig oleibzd01.ext.ti.com. NS
Answer
The response has no answer records.
Authority
ext.ti.com. 300 SOA oleibdm.itg.ti.com. hostmaster.ti.com. 2013107782 300 300 2419200 300
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0