Name resolution issue on one domain

[babu dheen]

Dear,
 
 We have two gateway DNS server running in BIND. One DNS is using one ISP link and another DNS server is using another ISP link.
 
Today i tried to resolve below URL from one DNS its not working whereas the same lookup is working fine another DNS.
 
Non-authoritative answer:
Name:    googlecode.l.google.com
Address:  173.194.69.82
Aliases:  fpdns.googlecode.com
>
 
Any idea as to why one GW DNS is not giving result. Except this domain, all other domain name lookup happening on the same DNS server.
 
How can i find out the exact reason?
 
Regards
Babu
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