HP Ethernet BL-c manual Port mirroring, Port trunking and load balancing, Tftp support

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are members of a specific IP network. This is achieved by configuring the address/mask of that specific network as a restricted management network address/mask.

Port mirroring

The switch allows mirroring of one or multiple ports (source ports) to another port (destination port) for network monitoring and troubleshooting purposes. This technology offers a way for network packet analyzers to view the traffic moving through the switch by providing a copy of the traffic that is currently being passed through any other port. The packets are sent to a network packet analyzer or other monitoring device attached to the mirror port.

Port trunking and load balancing

The switch supports EtherChannel compatible IEEE 802.3ad (without LACP) port trunking allowing several ports to be grouped together and act as a single logical link called a trunk. This feature provides a bandwidth that is a multiple of the bandwidth of a single link. It also improves reliability since load balancing is automatically applied to the ports in the trunked group. A link failure within the group causes the network traffic to be directed to the remaining links in the group.

TFTP support

TFTP support allows the switch firmware to be upgraded by downloading a new firmware file from a TFTP server to the switch. Firmware images of the switch are also uploaded to a TFTP server, a configuration file is downloaded into a switch from a TFTP server, and configuration settings are saved to the TFTP server.

Store and forward switching scheme

The switch provides a store and forward switching scheme that allows each packet to be buffered (stored) before it is forwarded to its destination. While this method creates latency, it improves reliability in a heavily used switch. Packets that cannot be forwarded are saved immediately, rather than dropped, so that packets behind them are less likely to be dropped in periods of heavy usage.

BOOTP

By default, the switch is configured to obtain an IP address from a BOOTP server during the boot process. The IP settings are also manually configured by means of the serial interface. The IP settings are configurable from the browser-based interface, but because the connection is based on an IP address for these interfaces, users will have to reconnect with the newly assigned IP address.

NTP

The switch maintains the current date and time. This information displays on the management interfaces and is used to record the date and time of switch events. Current date and time information are manually set on the switch or are obtained through NTP. NTP allows the switch to send a request to a primary NTP server in each polling period asking for GMT.

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Contents HP 110Gb Ethernet BL-c Switch User Guide Audience assumptions Contents Replacing a switch Acronyms and abbreviations Index Features IntroductionAdditional references Enterprise class performanceIntroduction Switch redundancy Configuration and managementSwitch architecture Diagnostic toolsPort Mapping Dual switches Layer 2 switching Layer 3 switchingSupported technologies Redundant crosslinksIeee 802.1 Q-based Vlan Spanning Tree ProtocolStore and forward switching scheme Port mirroringPort trunking and load balancing Tftp supportRadius SSH and SCP XModemIgmp Snooping Jumbo framesRedundant images in firmware 110Gb Ethernet Blade Switch front panel Component identificationGreen-Link LED top Installing the switch Preparing for installationPlanning the switch configuration Default settingsSwitch security User, operator, and administrator access rightsManually configuring a switch Configuring multiple switchesInstalling the switch Accessing the switch Logging on and configuring the switch Installing XFP transceivers Supporting software and special considerationsInstalling the switch Replacing a switch Replacing an existing switchReplacing a switch Regulatory compliance notices Class a equipmentModifications CablesEuropean Union regulatory notice Bsmi notice Japanese class a noticeKorean class a notice Laser compliance Technical specifications General specificationsPort names, VLANs, STP, trunking default settings STPRuntime switching software default settings General default settingsSTP Algorithm Setting Value Mstp UFD Igmp Physical and environmental specifications Performance specificationsCategory Specification Serial upgrade of boot code firmware image procedure Performing a serial downloadIntroduction Performing a serial download Performing a serial download Serial upgrade of operating system firmware procedure 10G100.binPerforming a serial download Performing a serial download Snmp MIBs support MIB overviewSnmp Manager software Supported MIBs Supported trapsSnmp MIBs support Electrostatic discharge Preventing electrostatic dischargeGrounding methods to prevent electrostatic discharge RJ-45 pin specification Standard RJ-45 receptacle/connectorRJ-45 signals RJ-45 pins DB-9 pins DB-9 signals Troubleshooting Health LED on the switch is not onTroubleshooting Bootp Page Troubleshooting Troubleshooting Switch configuration is corrupt XFP transceiver port is disabledDownload fails after starting to download the firmware file Acronyms and abbreviations Ieee NTP SCP Index Switch self-test, troubleshooting