Cisco Cisco Prime IP Express 8.3 技术参考

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页码 277
 
port 
(1-65535) default = 53
 
Specifies the UDP and TCP port number that the DNS caching server
uses to listen for queries.
 
prefetch 
 default = off
 
Sets whether message cache elements should be prefetched before they
expire to keep the cache up to date. Turning it on gives about 10
percent more traffic and load on the machine, but popular items do not
expire from the cache.
When prefetch is enabled, records are assigned a prefetch time that 
is within 10 percent of the expiration time. As the server processes
client queries and looks up the records, it checks the prefetch time.
Once the record is within 10 percent of its expiration, the server 
will issue a query for the record in order to keep it from expiring.
 
remote-ns-cache-numhosts 
 default = 50000
 
Sets the number of hosts for which information is cached.
 
remote-ns-host-ttl 
 default = 15m
 
Sets the time to live for entries in the host entries in the remote
name server cache. They contains roundtrip timing and EDNS support
information.
 
round-robin 
 default = true
 
Specifies whether you want round-robin cycling of equivalent
records in responses to queries. Equivalent records are records
of the same name and type. Since clients often only look at the
first record of a set, enabling this features can help balance
loads and keep clients from forever trying to talk to an
out-of-service host.
 
rrset-cache-size 
 default = 209715200
 
Sets the size of the RRset cache in bytes.
 
traps-enabled 
(all=1, server-start=2, server-stop=3) default =
 
Determines the traps that this server is configured to send.
   1  all
      Sends notifications for all server events.
   2  server-start
      Sends notifications whenever the server is started or
      reinitialized.
   3  server-stop
      Sends notifications whenever the server is stopped.
cdns64
 
    cdns64 - Controls and configures DNS64 processing in the DNS
             Caching server
  Synopsis
 
    cdns64 <name> create <attribute>=<value> 
    cdns64 <name> delete
    cdns64 <name> show
    cdns64 <name> get <attribute>
    cdns64 <name> set <attribute>=<value> 
    cdns64 <name> unset <attribute>
    cdns64 list 
    cdns64 listnames  
    cdns64 listbrief
    
    
  Description
    The cdns64 command lets you create and edit DNS64 objects.