6 steps to configure eBGP. Configure a router-id Configure an autonomous system number Configure a BGP group and define the peer type Add neighbors to the peer group Define a routing policy to export routes Assign the routing policy to the BGP group Configuration ...continue reading
In our last post we covered the basic setup and configuration of ExaBGP. While we were able to make use of ExaBGP for dynamic route advertisement, it wasn’t able to help us when it came to actually programming the servers routing table. In this post, I want to show you how you can leverage ExaBGP from a more programatic perspective. We’ll start by handling route advertisement to our peer and then tackle reading and processing received route updates. We’ll also start using another Python module (pyroute2) to program the routing table of the bgp_server host so that it begins acting more like a normal router. Enough talk – let’s dive in!
Im going to assume you’re starting off at the end of the last post. So the first thing we need to do is clean up a couple of items. We’re not going to rely on the static route we provisioned so to clean that up we can simply reapply the netplan network configuration using the command sudo netplan apply
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user@bgp_peer:~$ ip route default via 192.168.127.100 dev ens3 proto static 10.10.10.0/30 dev ens7 proto kernel scope link src 10.10.10.1 10. Continue reading
7 steps to configure VRRP. Enable VRRPv3 Define a VRRP group number Configure a virtual IP address Configure a virtual link-local address (IPv6 only) Configure a priority Configure preempt (optional) Configure router advertisement properties (IPv6 only) ...continue reading
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This post is presented in conjunction with The Internet Society.
During the second half of 2018, the causes of significant Internet disruptions observed through the Oracle Internet Intelligence Map could be clustered into a few overarching areas: government-directed, cable problems, power outages, distributed denial of service (DDoS) attacks, and general technical issues. Little changed heading into 2019, with two new government-directed Internet disruptions observed in Africa, alongside disruptions caused by fiber cuts and other network issues that impacted a number of countries around the world.
Initially covered in last month’s overview, the Internet disruption in the Democratic Republic of Congo continued into January, lasting through the third week of the month. Government authorities reportedly cut off Internet access in the country in December to prevent “rumor mongering” in the run-up to presidential elections.
An attempted military coup in Gabon led to a day-long Internet disruption in the country. The disruption started just after 07:00 UTC on January 7, as seen in the figure below, which shows clear declines in the Traceroute Completion Ratio and BGP Routes metrics, as well as a disruption to the usual diurnal pattern seen in the DNS Query Rate metric. Although the coup Continue reading
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Forward Networks returns to Heavy Networking to discuss its approach to network modeling, verification, and assurance in this sponsored episode. We explore new features, including the ability to leverage Forward's data model for other applications and management systems, and its support for NSX-V and AWS VPCs.
The post Heavy Networking 429: Network Modeling And New Features In Forward Networks (Sponsored) appeared first on Packet Pushers.
True end-to-end networking starts in the network adapter
The post Why Doesn’t Cisco Sell Network Adapters When It Makes Them ? appeared first on EtherealMind.