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The Question is:
I want to estimate the amount of network trafic that will be generated through
the implementation of DNS on out WAN's and LAN's.
At this moment the mainly used network protocol is DECnet phase IV and in the
next two years we will migrate to TCP/IP.
I thought that I should gather (for each node): the number of created
connections and/or the number of times that the NCP database hase been asked
for a DECnet adres, in a particular periode.
Can you tell if these counters exist and how to do that?
Thanks in advance,
Jos Hollaar
The Answer is :
The data on the requests that you seek are generally not tracked in the
DECnet counters (connection counters are available), and -- given the
more common use of IP DNS on more recent DECnet and on IP networks, and
particularly given the caching and even the use of local IP and DECnet
host databases -- not particularly useful in determining the expected
network load for name serving operations.
Further, the Wizard would also be more far concerned with the latency of
DNS requests, rather than the bandwidth consumed -- you can also use
local DNS servers to reduce the general latency, and this also has the
benefit of keeping more of this traffic on the local network segments.
More detailed research will likely involve a far more detailed look
at your network, with considerations around the particular scale of
your network, the current and expected network communications links,
the current and expected growth patterns, at security and monitoring
requirements, and at a variety of other considerations.
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