Home Computing History

I did some inventory once again in my cabinets and found some remains of my previous computers and old accessories. The old hard disks are being wiped as I write this (IDE-USB adapter FTW!) so that I can throw them …

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QSFP+ Specifics on Nexus 5500 and Nexus 6000 Series Switches

Some of you may be interested in QSFP+ connections with Cisco Nexus 5500 and Nexus 6000 series switches. The scope of this post is not to present all the different flavors of QSFP+ pluggables or all QSFP+ capable devices but …

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Originating Default Route in OSPF in Junos

I have a Junos router (Juniper SRX) with the default route pointing to the ISP (IP and default route assigned by DHCP) and a pair of Cisco Nexus switches with OSPF routing between all the boxes. I needed to originate …

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Junos authentication-order Configuration

In Cisco IOS you usually configure RADIUS or TACACS+ authentication with local user database as a backup, and you explicitly define the “local” keyword to tell that the local database is used if external servers are not responding. If the …

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Review: Sena Parani-SD1000 Bluetooth Serial Adapter

I have always disliked using serial console connection to a switch or other network device with my laptop. The serial cable just ties me to that particular place and device. Depending on the situation you may have options like using …

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Configuring BGP Sessions in IPv6

My colleagues were faced with an IPv6 implementation case where the router IOS feature set prevented them from configuring the BGP sessions. I labbed something for them and thought this overall IPv6 BGP session configuration would be worth of documenting …

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Cisco Nexus 7000 Features Available on Modules

In the Cisco Nexus 7000 series switches there are several features that are bound to the hardware, meaning that your module selection restricts the features you can run on the switch ports. Thus, here is once again a summarization of …

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Installing VMware Tools on Debian Linux

Apparently there is no official deb installer available for installing VMware Tools on Debian Linux. Instead you need to install it manually. Here is a brief memo of actions required on Debian 6.0.x: In vSphere Client, use the command Guest …

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Cat6500 FEX, or Smart Install?

I was surprised when I got a broschure in Cisco Live London 2013 that said Catalyst 6500 is supposed to support FEXes (Fabric Extenders) in the future. Does it make sense? A FEX is a device that looks like a …

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Building My Own VMware vSphere Hypervisor Host

As I wrote in my previous post, I’m building my own VMware vSphere Hypervisor (a.k.a. ESXi) host. Today I was able to get the first Debian server running on it! Let me go through the platform install for us. Planning …

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