Cisco Service Layer: Bring your own Controller

Selective Route download for BGP is a use case that most CDN network operators have taken a stab at. Being able to manipulate the RIB directly with custom route policies to optimize TCAM usage at a CDN PoP router is made much simpler through a high performance Model-Driven API directly into the XR RIB as part of the Cisco Service Layer. Akshat Sharma explains.

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openbmp-controller

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App-Hosting: #xr-toolbox

IOS-XR supports Linux applications like iperf, etcd, pipeline etc. running on-box: both natively and inside containers (Docker, LXC).Akshat Sharma explores the application-hosting capabilties in IOS-XR in a tutorial series called #xr-toolbox, all running on Vagrant IOS-XR on the user's laptop

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Streaming Telemetry: MDT

Shelly Cadora explains Model-Driven Telemetry through a set of fantastic tutorials that detail configuration of MDT using CLI, netconf-yang and YDK while also introducing Pipeline, an open source collector built to work with popular tools for telemetry consumption such as Kafka, Influxdb, ELK and many more.

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Design: Internet Edge Peering

The Internet was created to provide transparent data services across interconnected packet switched networks. The interconnection and exchange of Internet routing data between two networks is known as Peering and it represents an important administrative, operational, and security boundary between networks. In this blog, Phil Bedard focuses on the technical aspects of peering covering peering history and current peering architecture in the areas of network, security, and telemetry.

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Design @xrdocs

Software-Management: ZTP

Zero Touch provisioning (ZTP) has become an integral part of the workflow for most Users of IOS-XR. ZTP allows an IOS-XR box to be provisioned without any manual intervention by either running a user-defined script (bash/python) or simply applying a configuration file - all done automatically on boot. Patrick Warichet explains.

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ZTP topology

Segment-Routing: Failure Protection

The Segment Routing-based fast-reroute solution, TI-LFA, can provide per-destination sub-50msec protection upon any single link, node or SRLG failure regardless the topology. The traffic is rerouted straight to the post-convergence path, hence avoiding any intermediate flap via an intermediate path. The primary and backup path computation is completely automatic by the IGP. Clarence Filsfils and Kris Michielsen dive deeper.

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