Good Hands-on Experience in Various Technologies and Vendors.
There is no better investment than investing in yourself:
* Read more
* Learn more
* Take a class
* Build something new
* Exercise
* Eat healthy
* Work hard
* Rest and relax to balance out the work
=> Treat yourself well and it will pay off in the on long run.
If you looking to go with new models, cisco have new models Catalyst 9000 for Core and Distribution for Campus LAN
Have a look at the models.
https://www.cisco.com/c/en_uk/products/switches/catalyst-9000.html
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Suggest to look at the NXOS upgrade path :
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/7_x/nx-os/upgrade/guide/b_Cisco_Nexus_7000_Series_NX-OS_Software_Upgrade_and_Downgrade_Guide_Release_7-x.html#concept_33E8A3F9941E4AF397CC59D3EAE198F3
The upgrade stable version only and can suggested, what module cards are in the chassis and what features are running.
If you not sure, suggest to contact cisco partner to help, since most of the Nexus Switches are installed in DC environment and critical service environment.
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You can achieve the same way as above ACL, as long as you understand how the ACL working with above example. you can build one easy as per your dynamic requirements coming in the future.
Note : look at the command syntax based on the IOS you running and IOS support.
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I have suggested the best methods, you need to choose which ever suited for your business.
Backing up config never be wasted, because in one of the worst situation you need backup to restore any hardware failures.
If i were you my back up and compare process will be same box, its simple compare script.
Note : this is only a suggestion and advise.
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Then you need look at Hypervisor level ( example : esxi). where the ASAv hosted as VM.
Good example article to understand virtual infrastructure.
https://www.vmware.com/pdf/esx_network_planning.pdf
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That is not correct, Let me give you example and you need to spend some time to understand how the ip subnetting works.
Woodlands > 192.168.201.0/25 (Subnet 1) Network ID > 192.168.201.0 1st Usable IP > 192.168.201.1 (Default Gateway) - standard most of the people follow same way to easy remember - then your PC/ Device start using 192.168.201.2 to 126. Last IP > 192.168.201.126 BroadcastIP > 192.168.201.127
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Can you follow other thread in the forum. its easy to track each issue. rather posting same issue number of times.
https://community.cisco.com/t5/network-management/how-to-configure-ip-address-and-subnet-assignment/td-p/3694864
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Until we see your configuration it is hard to suggest at this moment.
we need to know what is old ISP IP and New ISP IP, and your running config.
in short you can achieve this by changing :
1. Change OLD ISP IP with New ISP IP
2. If you doing NAT you need to look how you doing this NAT.
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