[ace] Channel Access Gateway and Nameserver Plans

[Anthony Cuffe]

I wanted to clue people into a plan Brad, Brian and I have been working on to migrate/update the Channel Access Servers to RHEL 9.  The previous setup has worked very well except the network size as always a problem.  We decided that we would create a new dedicated network to host both the gateways and nameservers.  We can then deploy copies of all the  systems as RHEL 9 nodes and perform the migration piecemeal or however we wish.  Parallel production will provide the maximum flexibility.

This is the new Channel Access Network
--------------------------------------------------------------------

         netname         =>  canet
         netnumber     =>  129.57.235.0
         gateway          =>  129.57.235.1
         mask               =>  255.255.255.0
         cidr                  =>  24
         hexmask          =>  0Xffffff00
         broadcast        =>  129.57.235.255
         domain           =>  acc.jlab.org
         vlan                 =>  235
         comment    =>  Channel Access Network

--------------------------------------------------------------------


Here are the old vs new IPs.  These were kept as the same last addresses for ease of transition.  cagwspare was renamed for it's function (it is a second hall D gateway) and given a new IP.  So, for example, cagw and cagw9 will run in parallel production until everything has been converted to look at cagw9.  We would then decommission cagw and make cagw a DNS alias for cagw9.

cagw                                                  129.57.255.4
cagw9                                               129.57.235.4

cagwhla                                              129.57.255.11
cagwhla9                                            129.57.235.11

cagwhlb                                              129.57.255.12
cagwhlb9                                           129.57.235.12

cagwhlc                                              129.57.255.13
cagwhlc9                                            129.57.235.13

cagwhld                                              129.57.255.14
cagwhld9                                           129.57.235.14

cagwspare                                         129.57.255.2
cagwhld91                                         129.57.235.15

cagwlcls                                              129.57.255.8
cagwlcls9                                            129.57.235.8

cagwops                                             129.57.255.10
cagwops9                                           129.57.235.10

cagwrad                                              129.57.255.9
cagwrad9                                           129.57.235.9

cagwsite                                             129.57.255.6
cagwsite9                                           129.57.235.6

cagwts                                              129.57.255.5
cagwts9                                              129.57.235.5

opsns                                                  129.57.255.21
opsns9                                              129.57.235.21

devns                                                129.57.255.22
devns9                                             129.57.235.22


I hope this is clear.    Let me know if you have any questions.
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