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Cisco Bug: CSCvh72748 - Request to increase max allowable size of DNS message over UDP

Last Modified

Jan 14, 2020

Products (1)

  • Cisco TelePresence Video Communication Server (VCS)

Known Affected Releases

X12.5 X8.x unspecified

Description (partial)

DNS requests that elicit large responses may not be processed by the Expressway.

Specific to DNS over UDP.  Limitation due to rfc1035 - section 2.3.4  (there is no such limitation with DNS over TCP)
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