HP 3500yl, 5200zl manual Appendix E LLDP-MED

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In order to receive a multicast stream, routers explicitly join the stream by sending join messages to the RP. This join message is analogous to a unicast router following a default route to a destination. Effectively, the function of the RP is a place for multicast sources and receivers to meet.

PIM-SM is extremely memory and CPU efficient. Since the only thing that most routers need to know is how to reach the RP, memory requirements are greatly reduced. There are several methods that can be used by routers in a PIM-SM domain to learn where to find the RP. Probably the simplest mechanism is statically configuring all routers to reach the RP. However, if the routers are statically configured to an RP and the RP fails, then the multicast network is no longer functional.

Alternatively, the RP can be learned dynamically through the PIM-SM bootstrap mechanism. Since this bootstrap mechanism is dynamic, it allows for network changes and redundancy. The PIM-SM bootstrap mechanism is generally the recommended approach for simplicity and redundancy.

Appendix E: LLDP-MED

IEEE 802.1AB Link Layer Discovery Protocol (LLDP) provides a standards-based method that enables devices such as HP ProCurve switches to advertise themselves to adjacent devices and to learn about adjacent LLDP devices. An LLDP packet transmitted by a HP ProCurve switch contains data about the switch and port. The switch advertises itself to adjacent (neighbor) devices by transmitting LLDP data packets out all ports on which outbound LLDP is enabled, and reading LLDP advertisements from neighbor devices on ports that are inbound LLDP-enabled. An LLDP-enabled port receiving LLDP packets inbound from neighbor devices stores the packet data in a neighbor database (MIB).

LLDP provides the base capabilities for network devices, but was not considered sufficient for IP telephony devices. As a result, in 2004, an initiative by Mitel, HP ProCurve, Avaya, and Enterasys was undertaken to enhance LLDP so that it could better support IP telephony devices. The development of LLDP-Medium Endpoint Discovery (LLDP-MED) (ANSI/TIA-1057/D6) extended the LLDP standard to support advanced features on the network edge for VoIP endpoint devices with specialized capabilities and LLDP-MED standards-based functionality. The extensions to LLDP include the specification of additional TLV (type, length, and value) entries specifically for VoIP management.

LLDP-MED benefits include:

•Plug-and-play provisioning for MED-capable, VoIP endpoint devices

•Simplified, vendor-independent management enabling different IP telephony systems to interoperate on one network

•Automatic deployment of convergence network policies that include voice VLANs, Layer 2/CoS priority, and Layer 3/QoS priority

•Configurable endpoint location data to support the Emergency Call Service (ECS) such as Enhanced 911, 999, and 112

•Detailed VoIP endpoint data inventory readable via SNMP from the switch

•Power over Ethernet (PoE) status and troubleshooting support via SNMP

•Support for IP telephony network troubleshooting of call quality issues via SNMP

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Contents HP ProCurve Switch 5400zl, 3500yl, and 6200yl Series Ospf Page Executive summary IntroductionProduct positioning OverviewProVision Asic architecture HP ProCurve Switch 5400zl and 3500yl SeriesHP ProCurve Switch 6200yl-24G-mGBIC Inside the ProVision Asic Architecture Classification and lookupPolicy Enforcement Engine Management subsystem Advanced capabilities of the product familyHP ProCurve Switch 5400zl Series ProCurve Switch 5400zl Chassis 5400zl chassis layoutHP ProCurve Switch 5406zl chassis layout Power supplies Power supply types System PoE powerFan tray Zl modules Management modulePower supply configurations HP ProCurve Switch 5400zl series line interface modules5406zl 5412zl Specifications Console port ProcessorMemory Auxiliary portMini-GBICs supported ordered separately DescriptionPorts Open mini-GBIC slots Transceivers supported ordered separately Maximum distanceHP ProCurve ONE Services zl Module J9289A Description HP ProCurve Radio Ports supported ordered separatelyHP ProCurve Switch 3500yl Series Page LED status indicators Additional line interface moduleHP ProCurve Switch 6200yl HP ProCurve Switch 6200yl-24G-mGBIC J8992A Performance Overview of features and benefitsSecurity features Convergence Bandwidth shaping usingQoS functions Advanced classifier-based QoSRouting protocols Layer 2 switchingBridging protocols IPv6Future-proofing DiagnosticsManagement Low cost of ownershipGeneral protocols Standards and protocolsDevice management IP MulticastMIBs Network managementQoS/Cos Capacity and performance features comparisonPerformance and capacity SecurityPer-port buffer sizes Optimizing the 10-GbE port configuration Page Throughput and latency performance data Gbps Gigabit performance traffic patterns HP ProCurve warranty and support Industry-leading warrantyAppendix a Premium License Intelligent Edge and Premium LicenseTask Manual Using Appendix B Policy Enforcement Engine Granular policy enforcement Wire-speed performance for ACLsPolicy Enforcement Engine benefits Hardware-based performanceAppendix C Power over Ethernet PoE device typesPoE negotiation Power delivery optionsAdditional PoE power-external supplies Appendix D PIM Sparse Mode Support for pre-802.3af standard powered devicesAppendix E LLDP-MED Appendix F Virus Throttle security Page Sensitivity Appendix G VrrpResponse options Connection-rate ACLXrrp support on 5300xl switch Appendix H Ospf Equal Cost Multipath Appendix I Advanced Classifier-Based QoS Vlan IDAppendix J Server-to-Switch Distributed Trunking Limitations/RestrictionsAn example of upstream traffic forwarding is as follows Appendix K TroubleshootingLED status indicators for 5400zl series EPS LED LED status indicators for 3500yl and 6200yl series Temp On green Blinking orange Fan Status PoE Status Off Part numbers and Field Replaceable Units Part number ComponentPart number Component For more information
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