Cluster Roles - Huawei Quidway S3100 Series Operation Manual

Operation Manual – Stack&Cluster
Quidway S3100 Series Ethernet Switches
Software upgrading and parameter configuring can be performed simultaneously
on multiple switches.
Free of topology and distance limitations
Saving IP address resource
HGMP V2 provides the following functions:
Topology discovery: HGMP V2 implements NDP (neighbor discovery protocol) to
discover the information about the directly connected neighbor devices, including
device type, software/hardware version, connecting port and so on. The
information such as device ID, port mode (duplex or half duplex), product version,
and BootROM version can also be given.
Topology information collection: HGMP V2 implements NTDP (neighbor topology
discovery protocol) to collect the information about device connections and
candidate devices within a specified hop range.
Member recognition: A management device can locate and recognize the member
devices in the cluster and then deliver configuration and management commands
to them.
Member management: You can add a device to a cluster or remove a device from
a cluster on the management device. You can also configure management device
authentication and handshake interval for a member device on the management
device.
Cluster-related configurations are described in the following sections.

2.1.2 Cluster Roles

According to their functions and status in a cluster, switches in the cluster play different
roles. You can specify the role a switch plays. A switch also changes its role according
to specific rules.
Following three cluster roles exist: management device, member device, and
candidate device.
Table 2-1 Cluster role
Role
Management
device
Configurations
Configured with a
public IP address.
Receiving
management
commands from the
public network and
processing the
received commands
Huawei Technologies Proprietary
2-2
Functions
Providing management interfaces for
all switches in the cluster
Managing member
redirecting commands
Forwarding commands
intended member devices
Neighbor discovery,
information collection,
management, cluster
maintenance, and proxies
Chapter 2 Cluster
devices by
to the
topology
cluster
state