[CentOS] DNS zone delegation

Hi,

		i have configured a Master DNS server, i have also created records to delegate a zone to child dns server
But when named service is started it says 

Jul 31 14:33:30 localhost named[21581]: dns.zone:9: ignoring out-of-zone data (child.dns.com)

I am using bind-9.3.4-10.P1.el5_3.3. on CEntos 5.2

Please help. Thanks in advance. 

how to delegate the zone, is there any other configuration needed


my zone file ...

$TTL    86400
@       IN      SOA     dns.com. root.dns.com.  (
                                      1997022700 ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum
                IN      NS      dns.com.
child.dns.com.  IN      NS      ns.child.dns.com.

101             IN      PTR     dns.com.
@               IN      A       192.168.1.101

ns.child        IN      A       192.168.1.107
www     0       IN      A       192.168.1.101
www     0       IN      A       192.168.1.102
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