Vyatta NOS documentation

Learn how to install, configure, and operate Vyatta Network Operating System (Vyatta NOS), which helps to drive our virtual networking and physical platforms portfolio.

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New features – general purpose

New CLI commands associated with the new features can be found in the configuration and operational commands section.

SSD scheduler configuration

This feature provides a way to configure scheduler option for Multi Queue and Non Multi Queue I/O schedulers.

I/O schedulers attempt to improve throughput by reordering request access into a linear order based on the logical addresses of the data and trying to group these together.

While I/O schedulers may increase overall throughput, it may lead to some I/O requests waiting for too long, causing latency issues. I/O schedulers attempt to balance the need for high throughput while trying to fairly share I/O requests amongst processes.

Support SR-IOV (accelerated networking) in Azure

This feature adds support for SR-IOV, also called accelerated networking, in Azure for greater network bandwidth performance.

Display BGP per-neighbor route-map deny counter

This feature adds an in-bound drop counter for prefixes excluded by a configured route-map. 

Stateful firewall override

This feature allows SNAT/DNAT rules to be configured so that they do not automatically install a pinhole for return traffic matching the NAT sessions.

This means a user can have a firewall configuration that affects traffic matching a NAT session.

Add trim support

This feature provides a way to discard, or trim blocks that are not in use by the file system.

Trim support is useful for solid-state drives (SSDs) and thinly-provisioned storage.