Puppet Labs Lends a Hand to Application Orchestration
DevOps tackles the problem of multifaceted cloud-based apps.
DevOps tackles the problem of multifaceted cloud-based apps.
GNS3 1.3 will create and manage VirtualBox virtual machine linked clones from within the GNS3 user interface. This simplifies the process of setting up VirtualBox virtual machines in GNS3 makes GNS3 easier to use for studying the operation of open-source routers, switches, and hosts in network simulation scenarios.
In this post, I will show how to set up and use VirtualBox linked clones in your GNS3 simulation scenarios and work through a detailed tutorial.
Rich Brown chats with Ethan Banks about CoDel, an algorithm specifically designed to minimize the impact of bufferbloat. Rich and Ethan explain how CoDel works, and discuss the head-drop principle, sojourn times, TCP ECN, and more. This is a nerdy look at how your modem handles buffering, and how you can improve your home networking experience.
The post PQ Show 57 – Improve Your Home Internet Performance Using CoDel appeared first on Packet Pushers.
This is something every engineer, every blogger, and everyone who has a passion for free speech can help with. We live in a world that increasingly sees free speech as some sort of monstrously abnormal concept (even in the US); this is a fight we need to take up if any of us expect to be able to have a conversation about anything other than whether you should use EIGRP or IS-IS on a particular network.
We need to stand up for everyone who speaks, even if we don’t agree with them.
This is important.
The post Imprisoned and censored voices around the world appeared first Continue reading
I was looking for information on running IPv6 in VRF on the Catalyst 3k platform and there wasn’t much information available. I tried running IPv6 in VRF on Catalyst 3560 with correct SDM profile but got this error message:
Switch(config-vrf)#address-family ipv6 IPv6 VRF not supported for this platform or this template
I checked with Cisco and you need to have Catalyst 3560-X/3750-X with release 15.2(1)E for IPv6 to be supported in a VRF. This means the feature is not supported on the non X models.
The feature is also available on the 3650/3850 platform with IOS-XE 3.6.0E.
I hope this information helps someone looking for IPv6 support in VRF.
I got into an interesting discussion with a fellow networking engineer trying to understand the impact of a switch failure in a L2/L3 data center fabric (anything from Avaya’s fabric or Brocade’s VCS Fabric to Cisco’s FabricPath, ACI or Juniper’s QFabric) on MAC and ARP tables.
Here’s my take on the problem – have I missed anything?
Read more ...Just a short post to let you know this blog is not dead. I have not written anything in several months. While I have several posts that are partially complete, I have not been able to finish them…..yet.
For the past several months, I have been busy studying for the CCIE Wireless lab exam. Prior to that, I was sort of working towards the CCIE Route/Switch written and lab exam. I wasn’t fully committed, so my studying was sporadic at best. My heart just wasn’t in forcing myself to learn more about IPv6, multicast, MPLS, and some of the other blueprint items.
Somewhere along the line it changed. Maybe it was having another co-worker who was serious in his pursuit of the CCIE Wireless. Maybe it was that my job working for a reseller had me doing more and more Cisco wireless work. Maybe I just liked the fact that wireless was hard. I’m not really sure. I just know that at some point, a switch flipped inside my head and I just decided to go all in on my studies. Honestly, I should have done this years ago, but the timing just didn’t seem right.
I’ve been studying Continue reading
Mellanox could broaden its data center ambitions with EZchip — and inherit customer deals with Cisco and Juniper.
DataTorrent looks to improve Big Data processing and make adoption of Hadoop easier.
Illumio's ASP aims to cover all environments — which of course must include Docker containers.