H3C S3600 Series User Manual

Operation Manual – Cluster
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 1
Cluste
r
1-5
1.1.5 Switch Roles for a Cluster
From the point of view of a cluster, switches may play different roles, which depend on
their functionality and status. You can specify the role of a switch, or change the role of
a switch following some specific rules.
For a cluster, a switch may play one of the three roles: management device, member
device, and candidate device.
Table 1-1 Switch roles for a cluster
Role Configuration Functionality
Management
device
z The management device
is configured with a public
IP address.
z You can issue
management commands
to the management
device across the
Internet, and the
management device will
further process your
commands.
z The management device
provides a management
interface to all switches in
the cluster.
z It manages member
devices by redirecting
commands. That is, it
forwards commands to
their intended member
devices for processing.
z It has the following
functions: neighbor
discovery, topology
collection, cluster
management and cluster
status maintenance, and
supports FTP Server and
SNMP proxies.
Member device
Normally, a member device
is not configured with a
public IP address.
z A member device acts as a
member in the cluster.
z It has the following
functions: neighbor
discovery, accepting the
management of the
management device,
running commands
forwarded by proxies and
reporting failures/logs
Candidate device
Normally, a candidate device
is not configured with a
public IP address.
A candidate device is a switch
that does not belong to any
cluster; it has cluster
capability and can be added
to a cluster.
A switch can change from one role to another according to the following rules:

H3C S3600 Series Specifications

General

Brand	H3C
Model	S3600 Series
Category	Switch
Language	English