Today I am going to talk
about, how the communication/coordination takes place in between the cache
host(Nodes) of Windows Server AppFabric cache cluster
In short it is achieved
by using TCP/IP protocol, and as we all know If it is tcp/ip then we have to
set the exception rules in our Firewall…
In order to function
fully, it is going to make use of 4 different ports each with its own purpose,
By default ports starts from 22233 to 22236.(so to all these we need to set the
exception in firewall)…
Now we will look at what
these ports will listen on…
1) 22233 – By this port it actually communicates between the cache
clients – Hence it is a cache port
2) 22234 – By this port it ensures the availability of each other in
the cluster – hence it is a cluster port
3) 22235 – By this port it ensures that the failed nodes/host are
unavailable - Hence it is called as
Arbitration port
4) 22236 – By this port it moves the data across the hosts – hence it
is called as Replication port..
If your organization doesn’t
like these default ports for any reason , then you can set your own ports by
using the following Windows Powershell command….
Set-CacheConfig
I hope this helps!.
Regards,
-Vinayak
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