Document Conventions - Cisco Nexus 7000 Series Configuration Manual

Document Conventions

Chapter
Configuring Rapid PVST+ Using
NX-OS
Configuring MST Using Cisco
NX-OS
Configuring STP Extensions
Using NX-OS
Configuration Limits for Cisco
NX-OS Layer 2 Switching
Features
Document Conventions
Note As part of our constant endeavor to remodel our documents to meet our customers' requirements, we have
modified the manner in which we document configuration tasks. As a result of this, you may find a
deviation in the style used to describe these tasks, with the newly included sections of the document
following the new format.
Command descriptions use the following conventions:
Convention
bold
Italic
[x]
[x | y]
{x | y}
[x {y | z}]
variable
Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.x
xiv
Description
Provides information on IEEE 802.1D STP and complete details for
configuring Rapid PVST+.
Provides complete information on configuring MST.
Provides details on configuring the Cisco-proprietary STP extensions
Bridge Assurance, BPDU Guard, BPDU Filtering, Loop Guard, Root
Guard, and PVST Simulation.
Provides information on limits for Layer 2 switching features.
Description
Bold text indicates the commands and keywords that you enter literally
as shown.
Italic text indicates arguments for which the user supplies the values.
Square brackets enclose an optional element (keyword or argument).
Square brackets enclosing keywords or arguments separated by a vertical
bar indicate an optional choice.
Braces enclosing keywords or arguments separated by a vertical bar
indicate a required choice.
Nested set of square brackets or braces indicate optional or required
choices within optional or required elements. Braces and a vertical bar
within square brackets indicate a required choice within an optional
element.
Indicates a variable for which you supply values, in context where italics
cannot be used.
Preface