IOS XE does not run on every platform. Specifically it does not run on 29xx routers, low level ISRs like the 800 or 900 series. It does run on the following though: New Catalyst 9K line Converged Broadband Routers ASR line 42xx, 43xx, 44xx ISR ISRv and CSR1000v
1.1.a (ii) Impact to Troubleshooting and Performance
IOS XE also runs a separate driver instance for each blade, thus one blade driver crashing does not crash any others that use the same driver, this is because they run their own instance of the driver. Monolithic IOS runs all of the processes in one memory space, thus if the kernel crashes or has …
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1.1.a (i) Control plane and Forwarding plane
IOS-XE is able to have better logical and especially physical separation of the three planes. For example a chassis is able to have 3 blades, one dedicated to control plane, one to data plane, and one to the management plane. Granted that is a glorified example, it's possible. Since IOS XE runs a linux operating …
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1.1.a Describe basic software architecture differences between IOS and IOS XE
Cisco moving to different operating systems for their networking devices should come as no surprise. When comparing traditional or monolithic IOS to Juniper or Arista, we find IOS lacking. Specifically we find it lacking in the areas of scripting, programing, and just being able to do more. For the purpose of the CCIE, we should …
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How to Configure OSPF Authentication – Complete Guide
OSPF offers us 4 kinds of authentication when studying the CCNA and CCNP we really only hear/read about 3, the fourth SHA, is fairly new. Here's the complete list of available authentication for OSPF. NULL (no authentication) cleartext (packet capture reveals the password) MD5 (creates a 128bit fingerprint of the password, click here to read …
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Pre-Built LibreNMS OVF with Oxidized + Ryslog + 1 Min Polling
The goal of this article is to provide you with a pre-built LibreNMS. This image should require very little tinkering, This VM is not meant to be publicly accessibly, it should only be used internally to get you working, feel free to improve it. I'm going to go over the setup in this article. The …
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