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RFC 5864, "DNS SRV Resource Records for AFS", April 2010

Note: This RFC has been updated by RFC 8553

Source of RFC: IETF - NON WORKING GROUP
Area Assignment: app

Errata ID: 2767
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: Iñaki Baz Castillo
Date Reported: 2011-04-05
Held for Document Update by: Peter Saint-Andre

Section 6 says: 

   afsdb1, afsdb2, and afsdb3 all provide VLDB service via UDP.  The
   first two have the same priority but have weights indicating that
   afsdb1 should get about twice as many clients as afsdb2.

It should say:

   afsdb1, afsdb2, and afsdb3 all provide VLDB service via UDP.  The
   first two have the same priority but have weights indicating that
   afsdb2 should get about twice as many clients as afsdb1.

Notes:

The given DNS zone file shows:

_afs3-vlserver._udp SRV 0 2 7003 afsdb1.example.com.
_afs3-vlserver._udp SRV 0 4 7003 afsdb2.example.com.

This means that afsdb2.example.com. as weight 4 (double of weight for afsdb1.example.com.).

According to RFC 2782:

Weight
A server selection mechanism. The weight field specifies a
relative weight for entries with the same priority. Larger
weights SHOULD be given a proportionately higher probability of
being selected.

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