VMware has released a design guide for a network with NSX, Cisco Nexus 7000 and Cisco UCS computing. Perhaps it’s a small glueing attempt from VMware to Cisco, maybe it’s nothing. The thing is, I’m really happy about this design guide, there’ll be a FlexPod for NSX yet! 😉
The UCS Central appliance is on it’s way to be a proper centralized management platform for multiple UCS domains, but it’s not quite there yet. There are little simple things missing, such as custom SSL certificates. I had to get UCS Central using a proper SSL certificate the other day and couldn’t really find anything on how to do it. After figuring out how to do it, I decided to document it here!
I’m not getting into how you can generate a SSL private key, there are plenty of other tutorials covering those things. You’ve got two options; generate the … Read more
When you need to only the change the unified ports inside an expansion slot of a Nexus 5500, you do not have to reload the entire switch to activate the unified port changes. You can simply restart only the module like this:
nx5548up-a# config t nx5548up-a(config)# slot 2 nx5548up-a(config-slot)# port 1-16 type fc nx5548up-a(config-slot)# end nx5548up-a# copy run start nx5548up-a# poweroff module 2 nx5548up-a# no poweroff module 2
I had a corrupted IOS image on a 3750E switch today and feared for a xmodem transfer to eat up my day, until I found that you can copy from TFTP. It’s very well hidden, but still possible. Here’s how:
When the switch has ‘booted’ without a proper IOS, you’ll be in the ‘switch: ‘ command line. In the following example, I will assume that the TFTP server has IP 192.168.0.10 and the switch will use 192.168.0.1.
Connect your TFTP server to the ethernet management port, then follow this sequence:
switch: set IP_ADDR 192.168.0.1/255.255.255.0 switch: set DEFAULT_ROUTER 192.168.0.10 switch: copy … Read more