This chapter contains the following sections:
System Management Overview
This chapter describes the following system management features:
Local SPAN and ERSPAN
SNMP System Messages
The Cisco Discovery
Protocol (CDP) runs over the data link layer and is used to advertise
information to all attached Cisco devices and to discover and view information
about attached Cisco devices. CDP runs on all Cisco-manufactured equipment.
You must create a
domain ID for Cisco Nexus 1000V. This process is part of the initial setup of
the Cisco Nexus 1000V when you are installing the software. If you need to
create a domain ID later, use the
You can establish
Layer 3 Control in your VSM domain, which means that your VSM is Layer 3
accessible and able to control hosts that reside in a separate Layer 2 network.
In order to connect to vCenter Server or an ESX server, you must first define the connection in the Cisco Nexus 1000V. Managing Server Connections describes how to connect and disconnect with vCenter Server and viewing connections.
The Cisco Nexus 1000V
enables you to change the switch name, configure messages of the day, and
display, save, and erase configuration files.
Using a single
interface, you can manage the file system including:
Flash memory file
systems (TFTP and FTP)
Any other endpoint
for reading or writing data (such as the running configuration)
You can identify the
users who are currently connected to the device and send a message to either a
single user or all users.
The Network Time Protocol (NTP) synchronizes timekeeping among a set of distributed time servers and clients. This synchronization allows you to correlate events when you receive system logs and other time-specific events from multiple network devices.
Local SPAN and
The Ethernet switched
port analyzer (SPAN) enables you to monitor traffic in and out of your device
and duplicate packets from source ports to destination ports. For information
about configuring SPAN, see
Configuring a Local SPAN Session.
You can also use the Cisco Network Analysis Module (NAM) to monitor ERSPAN data
sources for application performance, traffic analysis, and packet header
analysis. To use NAM to monitoring the Cisco Nexus 1000V ERSPAN data sources,
Cisco Nexus 1010 Network Analysis Module Installation and
The Simple Network
Management Protocol (SNMP) is an application-layer protocol that provides a
message format for communication between SNMP managers and agents. SNMP
provides a standardized framework and a common language that you can use to use
to monitor and manage devices in a network.
visibility into traffic that transits the virtual switch by characterizing IP
traffic based on its source, destination, timing, and application information.
You can use this information to assess network availability and performance,
assist in meeting regulatory requirements (compliance), and help with
You can also use the
Cisco Network Analysis Module (NAM) to monitor NetFlow data sources.
You can use system message logging to control the destination and to filter the severity level of messages that system processes generate. You can configure logging to a terminal session, a log file, and syslog servers on remote systems. System message logging is based on RFC 3164.
For more information about the system message format and the messages that the device generates, see the Cisco Nexus 1000V Series
NX-OS System Messages Reference.
The iSCSI multipath feature sets up multiple routes between a server and its storage devices for maintaining a constant connection and balancing the traffic load.
Ping and trace route are among
the available troubleshooting tools. For more information, see the
Cisco Nexus 1000V