troubleshooting Question

Asterisk slow to load and run if DNS server is not available

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thetechgroupFlag for United States of America asked on
Linux NetworkingDNSIP Telephony
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I am running a couple of asterisk servers.  They are set to use a local DNS server - which forwards unknown domains to an external DNS.  I am seeing the following issues with Asterisk and DNS and any help is appreciated.

1. If the external resolution DNS is not available, when I try to load the dialplan, it takes a very long time.  you can see it loading 1 line at a time every few seconds.

2. If the local DNS server is down for any reason even after the asterisk load, it starts acting slow and erratic.

Is this an Asterisk issue or a CentOS issue.  And what can I do to avoid these slowdowns if the DNS's are down.
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