Introduction To Ndp - Huawei Quidway S3100 Series Operation Manual

Operation Manual – Stack&Cluster
Quidway S3100 Series Ethernet Switches
Role
Member
device
Candidate
device
Figure 2-2 shows the role changing rule.
Management device Management device
Figure 2-2 Role changing rule
Each cluster has one (and only one) management device. A management device
collects NDP/NTDP information to discover and determine candidate devices,
which can be then added into the cluster through manual configurations.
A candidate device becomes a member device after being added to a cluster.
A member device becomes a candidate device after being removed from the
cluster.

2.1.3 Introduction to NDP

NDP is the protocol for discovering the information about the adjacent nodes. NDP
operates on the data link layer, so it supports different network layer protocols.
NDP is used to discover the information about directly connected neighbors, including
the device type, software/hardware version, and connecting port of the adjacent
devices. It can also provide the information concerning device ID, port address,
hardware platform and so on.
Configurations
Normally, a member
device is not configured
with a public
address.
Normally, a candidate
device is not configured
with a public
address.
Candidate device Candidate device
Huawei Technologies Proprietary
Cluster member
Neighbor discovery, being managed
by the management device, running
IP
commands forwarded by proxies,
and failure/log reporting.
A candidate device is a switch that does
not belong to any cluster, although it can
IP
be added to a cluster.
Member device Member device
2-3
Chapter 2 Cluster
Functions