About this guide
This document describes the network synchronization features for the Nokia Service Router Linux (SR Linux).
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. See the SR Linux Release Notes for
information on features supported in each load.
Configuration and command outputs shown in this guide are examples only; actual displays may differ depending on supported functionality and user configuration.
Precautionary and information messages
The following are information symbols used in the documentation.
DANGER: Danger warns that the described
activity or situation may result in serious personal injury or
death. 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: Warning indicates that the
described activity or situation may, or will, cause equipment
damage, serious performance problems, or loss of data.
Caution: Caution indicates that the
described activity or situation may reduce your component or
system performance.
Note: Note provides additional operational
information.
Tip: Tip provides suggestions for use or
best practices.
Conventions
The 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
Couriertext. - 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.
The following table outlines platform grouping conventions used in the SR Linux documentation
suite.
Note: Some platforms in the 7250 IXR support mixed
systems. For more information about mixed system support, see "Chassis types" in the
Configuration Basics Guide.
| Platform group | Description |
|---|---|
| 7215 IXS | 7215 IXS-A1 |
| 7220 IXR | All 7220 IXR platforms |
| 7220 IXR-Dx | 7220 IXR-D1, 7220 IXR-D2, 7220 IXR-D2L, 7220 IXR-D3, 7220 IXR-D3L, 7220 IXR-D4, 7220 IXR-D5 |
| 7220 IXR-Hx | 7220 IXR-H2, 7220 IXR-H3, 7220 IXR-H4, 7220 IXR-H4-32D, 7220 IXR-H5-32D, 7220 IXR-H5-64D, 7220 IXR-H5-64O |
| 7250 IXR1 | 7250 IXR platforms |
| 7250 IXR Gen 2 | 7250 IXR-6, 7250 IXR-10 |
| 7250 IXR Gen 2c+ | 7250 IXR-6e with IMM2, 7250 IXR-10e with IMM2, 7250 IXR-X1b, 7250 IXR-X3b |
| 7250 IXR Gen 3 | 7250 IXR-6e with IMM3, 7250 IXR-10e with IMM3, 7250 IXR-18e, 7250 IXR-X4 |
| 7250 IXR-6e/10e (mixed system) | 7250 IXR-6e (mixed system)2, 7250 IXR-10e (mixed system)2 |
| 7730 SXR | 7730 SXR-1-32D, 7730 SXR-1d-32D, 7730 SXR-1x-44S |
1 References to the 7250 IXR
platform group may be appended with (including mixed systems) or
(excluding mixed systems) to indicate mixed system
support.
2 References to this platform as part of 7250 IXR
(mixed system) indicate mixed system support of 7250 IXR Gen 2c+ (IMM2) and 7250 IXR Gen 3 (IMM3). That is, the 7250 IXR-6e and 7250 IXR-10e can hold and support both IMM2 and IMM3 at the same time.