HP JD320B User Manual

then forwards the NTDP topology-collection request after its prior port forwards the NTDP
topology-collection request.
Cluster management maintenance
1. Adding a candidate switch to a cluster
You should specify the management switch before creating a cluster. The management switch discovers
and defines a candidate switch through NDP and NTDP protocols. The candidate switch can be
automatically or manually added to the cluster.
After the candidate switch is added to the cluster, it can obtain the member number assigned by the
management switch and the private IP address used for cluster management.
2. Communication within a cluster
In a cluster the management switch communicates with its member switches by sending handshake
packets to maintain connection between them.
Figure 43 Management/member switch state change
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Active
DisconnectConnect
• After a cluster is created and a candidate switch is added to the cluster and becomes a member
switch, the management switch saves the state information of the member switch and identifies it as
Active. The member switch also saves its state information and identifies itself as Active.
• After a cluster is created, its management switch and member switches begin to send handshake
packets. Upon receiving the handshake packets from the other, the management switch or a
member switch simply maintains its state as Active, without sending a response.
• If the management switch does not receive handshake packets from a member switch in an interval
three times the interval to send handshake packets, it changes the status of the member switch from
Active to Connect. Likewise, if a member switch fails to receive handshake packets from the
management switch in an interval three times of the interval to send handshake packets, the
member switch changes its own status from Active to Connect.
• During information holdtime, if the management switch receives handshake or management
packets from a member switch that is in Connect state, it changes the state of the member switch to
Active. Otherwise, it considers the member switch to be disconnected, and changes the state of the
member switch to Disconnect.
• During information holdtime, if a member switch in Connect state changes its state to Active if it
receives handshake or management packets from the management switch; otherwise, it changes its
state to Disconnect.
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HP JD320B Specifications

General

Model	JD320B
Category	Switch
Switching Capacity	56 Gbps
Forwarding Rate	41.7 Mpps
Power Supply	Internal
Ports	24 x 10/100/1000 + 4 x SFP
Form Factor	Rack-mountable
MAC Address Table Size	16, 000 entries
Jumbo Frame Support	Yes
VLAN Support	Yes
Quality of Service (QoS)	Yes

Summary

Legal and notice information

System maintenance and debugging

Ping

Verifies device reachability and examines network connectivity using ICMP.

Tracert

Traces Layer 3 devices in IP packet delivery to identify network availability.

System debugging

Provides debugging functions and information to help diagnose system errors.

NQA configuration

NQA overview

Explains Network Quality Analyzer (NQA) for testing network performance and service quality.

NQA configuration task list

Outlines the tasks required to enable NQA server and client for tests.

Configuring the NQA server

Steps to configure the NQA server for TCP, UDP echo, UDP jitter, and voice tests.

Creating an NQA test group

Process for creating an NQA test group and configuring test parameters.

Displaying and maintaining NQA

Commands for viewing NQA history, results, statistics, and server status.

NTP configuration

NTP overview

Defines Network Time Protocol (NTP) for synchronizing distributed time servers and clients.

How NTP works

Explains the basic workflow of NTP for time synchronization between devices.

Operation modes of NTP

Details NTP operation modes: client/server, symmetric peers, broadcast, and multicast.

NTP configuration task list

Lists the essential tasks for configuring NTP on network devices.

PoE configuration

PoE overview

Introduction to Power over Ethernet (PoE) and its components.

PoE configuration task list

Lists tasks for configuring PoE interfaces, detecting PDs, and power management.

Enabling PoE for a PoE interface

Steps to enable the PoE function on a specific interface.

Displaying and maintaining PoE

Commands to display PoE device information and interface power states.

SNMP configuration

SNMP overview

Introduces SNMP as a protocol for network management and monitoring.

SNMP protocol versions

Describes SNMPv1, SNMPv2c, and SNMPv3 protocol versions and their features.

SNMP configuration task list

Outlines the tasks for configuring SNMP, including basic parameters and logging.

Displaying and maintaining SNMP

Commands for monitoring SNMP agent status, community information, and MIB views.

RMON configuration

RMON overview

Introduces Remote Monitoring (RMON) for traffic analysis and device management.

Working mechanism

Explains how RMON monitors traffic using probes and agents.

RMON groups

Details RMON groups: statistics, history, event, alarm, and private alarm.

Displaying and maintaining RMON

Commands for viewing RMON statistics, history, and alarm configurations.

Cluster management configuration

Cluster management overview

Explains cluster management for large-scale distributed device management.

Cluster configuration task list

Lists tasks for configuring cluster roles, communication, and functions.

Establishing a cluster

Steps for manually or automatically establishing a cluster.

Displaying and maintaining cluster management

Commands for displaying NDP, NTDP, cluster, blacklist, and member information.

Port mirroring configuration

Introduction to port mirroring

Defines port mirroring for packet analysis and monitoring traffic.

Local port mirroring

Details configuring local mirroring groups with ports, CPUs, and monitor ports.

Layer 2 remote port mirroring

Describes configuring remote mirroring groups for source and destination devices.

Displaying and maintaining port mirroring

Commands to display port mirroring group configurations.

Traffic mirroring configuration

Traffic mirroring overview

Explains traffic mirroring for packet analysis and monitoring.

Configuring traffic mirroring

Steps to configure traffic mirroring to an interface or the CPU.

Mirroring traffic to an interface

Process for mirroring traffic to a specific destination interface using classifiers and behaviors.

Displaying and maintaining traffic mirroring

Commands to display traffic behavior and QoS policy configurations.

Stack configuration

Stack configuration overview

Introduces stack configuration for managing network devices as a whole.

Establishing a stack

Steps to create a stack by configuring master and slave devices.

Stack configuration task list

Lists tasks for configuring stack master, ports, and slave devices.

Displaying and maintaining stack configuration

Commands to view stack member information and verify configuration.

Information center configuration

Information center overview

Explains the information center's role in managing and classifying system information.

Levels of system information

Details the eight severity levels used for classifying system information.

Outputting system information to the console

Steps to configure the system to output information to the console.

Saving security logs into the security log file

Feature to save security logs into a dedicated file for easier management.

Displaying and maintaining information center

Commands for displaying information channels, output destinations, and log buffers.

PoE configuration

PoE overview

Introduction to Power over Ethernet (PoE) and its components.

PoE configuration task list

Lists tasks for configuring PoE interfaces, detecting PDs, and power management.

Enabling PoE for a PoE interface

Steps to enable the PoE function on a specific interface.

Displaying and maintaining PoE

Commands to display PoE device information and interface power states.