1. Getting started
This chapter describes this document, includes summaries of changes from previous releases and precautionary messages, and lists command conventions.
1.1. About this document
This document describes basic configuration for the Nokia Service Router Linux (SR Linux). Examples of commonly used commands are provided.
This document is intended for network technicians, administrators, operators, service providers, and others who need to understand how the router is configured.
 | Note: This manual covers the current release and may also contain some content that will be released in later maintenance loads. Refer to the SR Linux Release Notes for information on features supported in each load. |
1.2. Summary of changes
Table 1 lists the changes that were made in this release.
Table 1: Change summary
Topic | Location |
Mirroring for IPv4 and IPv6 packets | |
Configurable port-speed and Ethernet auto-negotiation support for RJ45 ports | |
Using IPv4/IPv6 destination address and address-mask as ACL filter match criteria | |
Default subinterface for capturing untagged and non-explicitly configured VLAN-tagged frames in tagged subinterfaces | |
BGP graceful restart | |
Breakout mode for QSFP28 ports on 7220 IXR-D3 devices | |
Configuring an IPv6 prefix list in RA messages to support SLAAC | |
RA guard for filtering RA messages | |
Queue utilization thresholds in QoS policies | |
Unified Forwarding Table (UFT) profiles for system resource partitioning |
1.3. Precautionary messages
Observe all dangers, warnings, and cautions in this document to avoid injury or equipment damage during installation and maintenance. Follow the safety procedures and guidelines when working with and near electrical equipment.
Table 2 describes information symbols contained in this document.
Table 2: Information symbols
Symbol | Meaning | Description |
 | Danger | Warns that incorrect handling and installation could result in bodily injury. An electric shock hazard could exist. Before you begin work on this equipment, be aware of hazards involving electrical circuitry, be familiar with networking environments, and implement accident prevention procedures. |
 | Warning | Warns that incorrect handling and installation could result in equipment damage or loss of data. |
 | Caution | Warns that incorrect handling may reduce your component or system performance. |
 | Note | Notes contain suggestions or additional operational information. |
1.4. Conventions
Nokia SR Linux documentation uses the following command conventions.
- Bold type indicates a command that the user must enter.
- Input and output examples are displayed in Courier text.
- An open right-angle bracket indicates a progression of menu choices or simple command sequence (often selected from a user interface). Example: start > connect to.
- Angle brackets (< >) indicate an item that is not used verbatim. For example, for the command show ethernet <name>, name should be replaced with the name of the interface.
- A vertical bar (|) indicates a mutually exclusive argument.
- Square brackets ([ ]) indicate optional elements.
- Braces ({ }) indicate a required choice. When braces are contained within square brackets, they indicate a required choice within an optional element.
- Italic type indicates a variable.
Generic IP addresses are used in examples. Replace these with the appropriate IP addresses used in the system.