Cisco 2K FEX 40/100 BiDi
The question comes up often about using the Cisco 40/100G BiDi QSFP28 optic for use with the Cisco Nexus 2348UPQ, or even other current Nexus 2300 FEX modules, ...
Tag: Nexus
Find number of ports by type
One common issue, and question, I get in the field is determining how many of a particular port type and speed is deployed in your data center network? This pos...
Parse CDP neighbor with regex
There are many ways to filter output, but this will, at least, add the top line of the show cdp neighbor detail command to isolate everything for you
No gateway or traffic reachability with Nexus FEX and Nexus 9000
If you have deployed a FEX with a Cisco Nexus 9K switch, either the 23XX or an integrated FEX within a chassis, and you’re unable to reach the gateway and/or ha...
Nexus 93180YC-EX with Cisco Nexus 2348UPQ 40GbE
I have seen this around the Internet and a lot of the information is old, and incorrect at the date of this blog post. Thus, what I will link here is the ...
How to IPv6 – a common sense approach
Never thought I would be writing about how to utilize IPv6 in 2017 because of all the excellent material on the Internet; however, I have discovered a few thing...
What is Cisco Nexus ToR-FEX
I realize there is still some confusion regarding Cisco Nexus FEX as it relates to ToR connected FEX, which is a Cisco Nexus 2K FEX with a Cisco Nexus 5K/7K/9K ...
Cisco tacacs and aaa – single-connection
There has been some slight confusion and ambiguity around the “single-connection” configuration statement provided by Cisco switches and routers, including SAN ...
Cisco Nexus 9300 QOS
Based on 6.x code, and I believe 7.x but I could be wrong: f you’re coming from the Nexus 5500 platforms you’re in for a little tweaking to get this working as ...
Cisco BGP EVPN VXLAN – Part 2 – Spine uplink failure
So, you’ve surely seen some interesting tidbits in the previous section, things you haven’t noticed from other configurations on the Internet. I will outline wh...