Cabletron Systems TRFMIM-28 manual SecureFast VLAN Switches, Fully-Meshed VLAN Domains

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Fully-Meshed VLAN Domains

Operation

Fully-Meshed VLAN Domains

The switches shown in ﬁgure 3-3 above are said to be fully meshed. The term “fully meshed” is often used when describing the connections between switches in a domain. Fully meshed implies that there are links between all switches to every other switch. A fully-meshed topology provides high reliability and low delays between endpoints. Figure 3-4 shows a VLAN domain consisting of four fully-meshed VLAN switches.

SFS Network

VLAN Switch			VLAN		Switch





VLAN Switch
VLAN Switch					VLAN		Switch

Figure 3-4. Fully-Meshed VLAN Domain

SecureFast VLAN Switches

SecureFast VLAN (SFVLAN) switches are connection-oriented internetworking devices. These devices use source address/destination address (SA/DA) pairs along with embedded layer 3 virtual routing services to provide address resolution and call processing. In a connection-oriented network, path determination is accomplished through signaling performed at call setup time. Once a call is programmed, no additional software intervention is required until the call is completed. This type of call management operates much like a telephone network. The circuit is set up, data is transferred, and the circuit is torn down.

Switches switch packets at the MAC layer and allow connectivity of endpoints via Access Ports based on VLAN mappings. The ﬁrst packet is routed, the remaining packets are then switched along the same path. Each VLAN switch maintains a Local Directory of endpoint MAC and network addresses found on each switch port. The aggregation of each VLAN switch’s Local Directory form a complete view of an entire VLAN domain. This information is used by the VLAN Manager for assignment and veriﬁcation of VLANs.

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Contents 9032061-01 SmartSwitch 9H423-28 User’s GuidePage Copyright March 1998 by Cabletron Systems, Inc 35 Industrial Way DOC Notice FCC NoticeVCCI Notice Conformance to Directives/Product Standards DECLARATION OF CONFORMITY ADDENDUMNexus House, Newbury Business Park The FPIM-05 and FPIM-07 are Class 1 Laser Products Safety InformationCLASS 1 LASER TRANSCEIVERS CLASS 1 LASER TRANSCEIVERS Laser Radiation and Connectors Page Installing the 9H423-28 Module ContentsChapter Introductionviii SpeciﬁcationsContents Chapter IntroductionFast Packet Switching FeaturesProcessor ManagementThe 9H423-28 module provides MIB support including RMON RFC-1271 LANVIEW LEDs 26X 25X Figure 1-1. The 9H423-28 ModuleFAST ENET 9H423-28 SMB CPU INB FAST ENETGetting Help Related ManualsUnpacking the Module Installing the 9H423-28 ModuleInstalling an FEPIM User Accessible Components Setting the Module DIP Switch See the Cautions at the end of this table Table 2-1. Function of DIP SwitchInstalling the Module in the SmartSwitch 9000 Chassis Plastic Tab Jack for ESD Wrist Strap Figure 2-3. Installing the ModuleMetal Back-Panel ModuleReset Switch The Reset SwitchInstalling the 9H423-28 Module Operation Operation ENIB/FENIBVLAN SmartSwitch ASICTraditional Switch VLAN Domains Fully-Meshed VLAN Domains SecureFast VLAN SwitchesINB NIB i960 CoreSystem Management Buses SMB-1 BusDC/DC Converter System Diagnostic ControllerINB Interface SMB-10 BusITDM RAM Allocation Level ITDM Arbitration LevelsRound Robin Arbitration Level Lowest Slot Number LevelMonarch/Slave SmartSwitch 9000 Modules 3-10 INB Receive LANVIEW LEDsPort Transmit System Status INB Transmit Port ReceiveLANVIEW LEDs The function of the INB Receive LEDs is listed in TableThe function of the INB Transmit LEDs is listed in Table The function of the Port Transmit LEDs is listed in Table The function of the Port Receive LEDs is listed in TableTable 4-4. Port Receive LEDs Table 4-5. Port Transmit LEDsLANVIEW LEDs Technical Speciﬁcations SpeciﬁcationsMemory StandardsService SafetyDimensions WeightOperating Temperature Environment5 to 40 C Storage TemperatureSpeciﬁcations FE-100TX FEPIM SpeciﬁcationsFE-100FX Appendix AFEPIM Speciﬁcations FE-100FX