D-Link DWS-4026 [64/741] Defining system information

SwitchConfiguration

D-Link UnifiedWiredandWirelessAccessSystem

November2011 Page64

D‐LinkUWSUserManual

DefiningSystemInformation

1. OpentheSystemDescriptionpage.

2. Definethefollowingfields:SystemName,SystemContact,andSystemLocation.

3. ClickSubmit.

Thesystemparametersareapplied,andthedeviceisupdated.

SwitchConfiguration

FromtheSwitchConfigurationpage,youcancontroltheIEEE802.3xflowcontrolmodefortheswitch.

IEEE802.3xflowcontrolworksbypausingaportwhentheportbecomesoversubscribedanddroppingall

trafficforsmallburstsoftimeduringthecongestioncondition.Thiscanleadtohigh‐priorityand/ornetwork

cont

roltrafficloss.When802.3xflowcontrolisenabled,lowerspeedswitchescancommunicatewithhigher

speedswitchesbyrequestingthatthehigherspeedswitchrefrainsfromsendingpackets.Transmissionsare

temporarilyhaltedtopreventbufferoverflows.

TodisplaytheSwitchConfigurationpage,clickLAN>Administration>SwitchConfigurationinthena

vigation

tree.

Figure8:SwitchConfiguration

•Ifyouchangethemode,clickSubmittoapplythechangestothesystem.Ifyouwanttheswitchtoretain

thenewvaluesacrossapowercycle,youmustperformasave.

Note:Ifyouwanttheswitchtoretainthenewvaluesacrossapowercycle,youmustperforma

configurationsave,buttheSystemTimedoesnotneedasavetoretainthenewvaluesacrossapower

cycle.

Table4:SwitchConfigurationFields

Field Description

IEEE802.3xFlow

ControlMode

EnablesordisablesIEEE802.3xflowcontrolonthesystem.Thefactorydefaultis

disabled.

• Enable:Enablesflowcontrolsothattheswitchcancommunicatewithhigher

speedswitches.

• Disable:Disablesflowcontrolsothattheswitchdoesnotsendpausepacketsifthe

portbuff

ersbecomefull.