Interesting A10 GSLB interop problem

[Jack Bates]

On 10/23/2011 9:59 PM, George Bonser wrote:
>
> The problem isn’t so much the mishandling of the AAAA records, per se, 
> as it is the fact that the mishandling of them messes up future v4 A 
> record requests by clients using the same DNS server due to the 
> caching of the CNAME. I have even reduced the cname TTL to 10 seconds 
> but you still end up with any v4 clients that make a request to the 
> local DNS server getting scattered to the failover VIPs during that 10 
> second period after an AAAA request. That can be a substantial number 
> of requests.
>

What happens if you are replacing the A record, and not shifting to a 
CNAME? Surely it wouldn't reply to an AAAA request with an A record. I'm 
wondering if this is something specific to the usage of a CNAME.


Jack