M4250 Datasheet

Tier 1 availability
RapidSpanningTree(RSTP)andMultipleSpanningTree(MSTP)allowforrapidtransitionningoftheportstotheForwardingstateandthesuppressionofTopology
ChangeNotication
NETGEAR PVSTP implementation follows the same
rules than other vendor’s Per VLAN STP for strict
interoperability
• Including industry-standard PVST+ interoperability
• PVSTP is similar to the MSTP protocol as defined by IEEE 802.1s, the main difference being PVSTP runs one
instance per VLAN
• In other words, each configured VLAN runs an independent instance of PVSTP
• FastUplink feature immediately moves an alternate port with lowest cost to forwarding state when the root
port goes down to reduce recovery time
• FastBackbone feature selects new indirect port when an indirect port fails
NETGEAR PVRSTP implementation follows the same
rules than other vendor’s Per VLAN RSTP for strict
interoperability
• Including industry-standard RPVST+ interoperability
• PVRSTP is similar to the RSTP protocol as defined by IEEE 802.1w, the main difference being PVRSTP runs
one instance per VLAN
• In other words, each configured VLAN runs an independent instance of PVRSTP
• Each PVRSTP instance elects a root bridge independent of the other
• Hence there are as many Root Bridges in the region as there are VLANs configured
• Per VLAN RSTP has in built support for FastUplink and FastBackbone
IPaddressconictdetectionperformedbyembeddedDHCPserverspreventsaccidentalIPaddressduplicatesfromperturbingtheoverallnetworkstability
IPEventDampeningreducestheeffectofinterfaceapsonroutingprotocols:theroutingprotocolstemporarilydisabletheirprocessing(ontheunstableinterface)until
the interface becomes stable, thereby greatly increasing the overall stability of the network
Ease of deployment
AutomaticcongurationwithDHCPandBootPAutoInstalleaseslargedeploymentswithascalablecongurationlesmanagementcapability,mappingIPaddresses
and host names and providing individual configuration files to multiple switches as soon as they are initialized on the network
BoththeSwitchSerialNumberandprimaryMACaddressarereportedbyasimple"showhardware"commandinCLI-facilitatingdiscoveryandremoteconguration
operations
M4300DHCPL2Relayagentseliminatetheneed
tohaveaDHCPserveroneachphysicalnetworkor
subnet
• DHCPRelayagentsprocessDHCPmessagesandgeneratenewDHCPmessages
• SupportsDHCPRelayOption82circuit-idandremote-idforVLANs
• DHCPRelayagentsaretypicallyIProuting-awaredevicesandcanbereferredtoasLayer3relayagents
AutomaticVoiceoverIPprioritizationwithAuto-VoIPsimpliesmostcomplexmulti-vendorIPtelephonesdeploymentseitherbasedonprotocols(SIP,H323andSCCP)
oronOUIbytes(defaultdatabaseanduser-basedOUIs)inthephonesourceMACaddress;providingthebestclassofservicetoVoIPstreams(bothdataandsignaling)
over other ordinary traffic by classifying traffic, and enabling correct egress queue configuration
An associated Voice VLAN can be easily configured with Auto-VoIP for further traffic isolation
WhendeployedIPphonesareLLDP-MEDcompliant,theVoiceVLANwilluseLLDP-MEDtopassontheVLANID,802.1PpriorityandDSCPvaluestotheIPphones,ac-
celerating convergent deployments
Ease of management and granular control
Dual firmware image and dual configuration file for transparent firmware updates / configuration changes with minimum service interruption
FlexiblePort-Channel/LAG(802.3ad-802.1AX)implementationformaximumcompatibility,faulttoleranceandloadsharingwithanytypeofEthernetchannelingfrom
othervendorsswitch,serverorstoragedevicesconformingtoIEEE802.3ad-includingstatic(selectablehashingalgorithms)-ortoIEEE802.1AXwithdynamicLAGsor
port-channel(highlytunableLACPLinkAggregationControlProtocol)
LACPmodeautomaticallyrevertstoandfromStaticLAG,usefulwhenthehostisn’tLACPanymore,forinstanceduringafactoryresetorre-conguration
Auto-LAG: If more than one link between two M4250 switches, a Link Aggregation Group is created, dynamically
UnidirectionalLinkDetectionProtocol(UDLD)andAggressiveUDLDdetectandavoidunidirectionallinksautomatically,inordertopreventforwardinganomaliesina
Layer 2 communication channel in which a bi-directional link stops passing traffic in one direction
Port names feature allows for descriptive names on all interfaces and better clarity in real word admin daily tasks
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AV Line Managed Switches
Datasheet | M4250 series
AV Line Managed Switches