Label Switched Multicast – Configuration
In the previous post (Label Switched Multicast – An Introduction) in this series on Label Switched Multicast (LSM) I introduced the concepts behind LSM and draft-rosen, the two most poplar methods for transporting multicast traffic through MPLS Layer 3 VPNs.
In this article I will talk through the configuration of LSM on the PE and P routers and get to the point where two CEs are successfully passing multicast traffic via the MPLS network. All of the configuration examples will be relevant to Cisco IOS.
As was the case in the introduction article in the series, it’s best if you already have a good understanding of multicast and MPLS before reading this article.
At the end of this article you’ll be able to start configuring your own LSM environment using the configuration samples here as a template.
To the CLI!
Configuring the Provider Network
In order to keep this post on point, I’m going to start on the basis that basic routing, LDP and MP-BGP are already configured and that unicast traffic is successfully flowing between all CEs.
The basic topology being used here is the same as the one in the introduction post:
Within the Continue reading
Improving Mobile Networks
How can mobile networks reduce bottlenecks and buffering to meet user needs?
8 Reasons Why NFV Matters To The Enterprise
Network functions virtualization may be in its infancy now, but it's sure to make an impact on your enterprise network.
Sysadmins Shouldn’t Be Involved with Routing
I had a great chat with Enno Rey the morning before Troopers 2016 started in which he he made an interesting remark:
I disagree with your idea of running BGP on servers because I think sysadmins shouldn’t be involved with routing.
As (almost) always, it turned out that we were still in violent agreement ;)
Read more ...There’s no conspiracy behind the FBI-v-Apple postponement
The FBI says it may have found another way to get data off an iPhone, and thus asked to postpone a hearing about whether Apple can be forced to do it. I thought I'd write a couple of comments. Specifically, people are looking for reasons to believe that the FBI, or Apple, or both are acting in bad faith, and that everything that happens is some sort of conspiracy. As far as I can tell, all evidence is that they are acting in good faith.Orin Kerr writes:
If that happens, neither side will look good in the short term. The FBI won’t look good because it went to court and claimed it had no alternatives when an alternative existed. The whole case was for nothing, which will raise suspicions about why the government filed the case and the timing of this new discovery. But Apple won’t look good either. Apple claimed that the sky would fall if it had to create the code in light of the risk outsiders might steal it and threaten the privacy of everyone. If outsiders already have a way in without Apple’s help, then the sky has already fallen. Apple just didn’t know Continue reading
Which Would Be Quicker – Routing Updates Or Loss Of User Data?
With the correct level of intelligence in the routing device, could a lack of flow be used to signify a change in the network?
The post Which Would Be Quicker – Routing Updates Or Loss Of User Data? appeared first on Packet Pushers.
Which Would Be Quicker – Routing Updates Or Loss Of User Data?
With the correct level of intelligence in the routing device, could a lack of flow be used to signify a change in the network?
The post Which Would Be Quicker – Routing Updates Or Loss Of User Data? appeared first on Packet Pushers.
Label Switched Multicast — Configuration
In the previous post (Label Switched Multicast - An Introduction) in this series on Label Switched Multicast (LSM) I introduced the concepts behind LSM and draft-rosen, the two most poplar methods for transporting multicast traffic through MPLS Layer 3 VPNs.
In this article I will talk through the configuration of LSM on the PE and P routers and get to the point where two CEs are successfully passing multicast traffic via the MPLS network. All of the configuration examples will be relevant to Cisco IOS.
As was the case in the introduction article in the series, it's best if you already have a good understanding of multicast and MPLS before reading this article.
At the end of this article you'll be able to start configuring your own LSM environment using the configuration samples here as a template.
To the CLI!
Using Docker Machine with AWS
As part of a broader effort (see the post on my 2016 projects) to leverage public cloud resources more than I have in the past, some Docker Engine-related testing I’ve been conducting recently has been done using AWS EC2 instances instead of VMs in my home lab. Along the way, I’ve found Docker Machine to be quite a handy tool, and in this post I’ll share how to use Docker Machine with AWS.
By and large, using Docker Machine with AWS is pretty straightforward. You can get an idea of what information Docker Machine needs by running docker-machine create -d amazonec2 --help. (You can also view the documentation for the AWS driver specifically.) The key pieces of information you need are:
--amazonec2-access-key: This is your AWS access key. Docker Machine can read it from the $AWS_ACCESS_KEY_ID environment variable, or—if you have the AWS CLI installed—Docker Machine can read it from there.--amazonec2-secret-key: This is your AWS secret key. As with the AWS access key, Docker Machine can read this from an environment variable ($AWS_SECRET_ACCESS_KEY) or from the AWS CLI credentials file (by default, found in~/.aws/credentials).--amazonec2-region: The AWS driver defaults to Continue reading
Cumulus Names New CEO
The current CEO moves to CTO.
Worth Reading: Utilization at ‘net interconnects
The post Worth Reading: Utilization at ‘net interconnects appeared first on 'net work.
CenturyLink Sends Mixed Messages on Its Data Center Plans
To sell or not to sell.