Round Robin is killing performance on our network


we had 2 windows 2003 domain controllers @ our data center dns , 1 domain controller @ our large remote office no dns. finished replacing 3 domain controllers windows 2012 r2 dc's, each of have dns installed , configured. we're having issues servers @ our data center resolving names using dns server @ remote office due appears round robin dns lookups.

is there suggested way force servers , workstations @ data center use domain controllers @ location dns resolution , servers , workstations @ remote office use domain controller @ location dns resolution?

thanks in advance assistance,

dan


hi dbetanco,

>we're having issues servers @ our data center resolving names using dns server @ remote office due appears round robin dns lookups.

round robin specific record query, example, in dns zone has 3 records:

www.test.com 1.1.1.1

www.test.com 2.2.2.2

www.test.com 3.3.3.3

then if query nslookup www.test.com three times,

first time order is:

1.1.1.1; 2.2.2.2; 3.3.3.3;

second time order is:

2.2.2.2; 3.3.3.3; 1.1.1.1;

third time order is:

3.3.3.3; 1.1.1.1; 2.2.2.2

as use first ip, may use different ip address visit www.test.com each time.

>is there suggested way force servers , workstations @ data center use domain controllers @ location dns resolution , servers , workstations @ remote office use domain controller @ location dns resolution?

to specific dns server address, need check preferred dns server address configured in client's tcp/ip properties. check if address dns server's address that want use.

if clients ip configurations dhcp server, may check dhcp option 006.

besides, round robin can disable:

best regards,

anne


please remember mark replies answers if , unmark them if provide no help. if have feedback technet support, contact tnmff@microsoft.com.




Windows Server  >  IPAM, DHCP, DNS



Comments

  1. Switching to a load balancing algorithm wooting double movement like Least Connections or IP Hash can improve performance compared to Round Robin by better distributing traffic.

    ReplyDelete

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