Moxa Technologies EDS-508 Queuing Mechanism, Inspect TOS, Inspect COS, Default Port Priority

Page 49

EDS-508 Series User’s Manual

Featured Functions

MOXA EtherDevice Switch supports inspection of layer 3 TOS and/or layer 2 CoS tag information to determine how to classify traffic packets.

Queuing Mechanism

 

 

Setting

Description

 

Factory Default

 

 

 

EDS-508 has 4 priority queues. In the weighted fair

 

 

 

 

 

scheme, an 8, 4, 2, 1 weighting is applied to the four

 

 

 

 

Weight Fair

priorities. This approach prevents the lower priority

 

 

 

 

frames from being starved of opportunity for

 

 

 

 

 

 

 

 

 

 

transmission with only a slight delay to the higher

 

 

 

 

 

priority frames.

 

Weight Fair

 

 

 

In the Strict-priority scheme, all top-priority frames

 

 

 

 

egress a port until that priority’s queue is empty, and

 

 

 

 

 

then the next lower priority queue’s frames egress.

 

 

 

 

Strict

This approach can cause the lower priorities to be

 

 

 

 

 

starved of opportunity for transmitting any frames but

 

 

 

 

 

ensures all high priority frames to egress the switch as

 

 

 

 

 

soon as possible.

 

 

Inspect TOS

 

 

 

 

Setting

Description

Factory Default

 

 

Check the checkbox to enable EDS-508 to inspect the

 

 

Enable/Disable

Type of Service (TOS) bits in IPV4 frame to

Enable

 

 

determine the priority of each frames.

 

Inspect COS

 

 

 

 

Setting

 

Description

 

Factory Default

 

 

Enable/Disable

 

Check the check box to enable EDS-508 to inspect the

 

Enable

 

 

 

802.1p COS tag in the MAC frame to determine the

 

 

 

 

 

priority of each frame.

 

 

Default Port Priority

 

 

 

 

 

Setting

Description

 

Factory Default

 

 

 

Set the Port Default Priority of the ingress frames to

 

 

 

Low/Normal/

different priority queues. If the received packets are

 

Normal

 

Medium/High

not equipped with any tag information (CoS, TOS) the

 

 

 

 

default port priority will take effect.

 

 

 

 

 

 

NOTE

The priority of an ingress frame is determined in order by:

 

 

 

1.

Inspect TOS

 

 

 

 

2.

Inspect CoS

 

 

 

 

3.

Default Port Priority

 

 

 

 

 

 

NOTE

The designer can enable these classifications individually or in combination. For instance, if a

 

‘hot,’ higher priority port, is required for a network design, “Inspect TOS” and “Inspect CoS” can

be disabled. This setting leaves only port default priority active, which results in all ingress frames being assigned the same priority on that port.

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Image 49
Contents Second Edition, November Moxa EtherDevice Switch User’s Manual EDS-508 SeriesCopyright Notice Moxa EtherDevice Switch EDS User’s ManualTrademarks DisclaimerTable of Contents Chapter EDS Configurator GUI Introduction Package Checklist Moxa EtherDevice SwitchInside the Future of Industrial Ethernet Technology Industrial vs. CommercialUseful Utility and Remote Configuration FeaturesAdvanced Industrial Networking Capability Designed for Industrial ApplicationsPage Getting Started Connection Caution Using the RS-232 Serial Console 115200, None, 8, 1, VT100EDS-508 Series User’s Manual Getting Started Key Function Using the Telnet ConsoleEDS-508 Series User’s Manual Getting Started Using Web Configuration For details Page Featured Functions Switch Name Setting Descriptions Factory Default Configuring Basic SettingsSwitch Location Setting Descriptions Factory Default Switch Description Setting Descriptions Factory DefaultDisable Telnet/Web Console PasswordSetting Descriptions Factory Default Account NamePassword Setting Accessible IP# Hosts on the specific subnet can access the NE-4000T # Any host can access the NE-4000TPort Enable/Disable PortName Port Type Port Transmission SpeedFDX Flow Control Switch IP Address Auto IP ConfigurationSwitch Subnet Mask Default GatewayTime Current Time Setting Description Factory DefaultDNS IP Address Time Zone Setting Description Factory Default Current Date Setting Description Factory DefaultSystem Up Time Tftp Server IP/Name Setting Description Factory Default System File Update-By Remote TftpLog file path and name Setting Description Factory Default Configuration File Export System File Update-By Local Import/ExportConfiguration File Import Log File ExportFactory Default Using Port TrunkingConcept of Port Trunking Port Trunking Settings Configuring Port TrunkingTrunking settings Port setting information Using SnmpEnable/Disable Snmp Versions Configuring Snmp Snmp Read/Write SettingsV1, V2c Read Community V1, V2c Read/Write CommunityAdmin Data Encryption Key For Snmp V1, V2c, V3 and V3 only Admin Auth. Type For Snmp V1, V2c, V3 and V3 onlyUser Auth. Type For Snmp V1, V2c, V3 and V3 only User Data Encryption Key For Snmp V1, V2c, V3 and V3 onlyTrap Settings Using Communication RedundancyPrivate MIB information Concept of Turbo RingWhen the number of EDS units in the Turbo Ring is even Page Switch a Coupler Configuring Turbo Ring Concept of STP/RSTP What is STP? STP Requirements How STP WorksSTP Reconfiguration STP ConfigurationHow Rstp Differs from STP Port Speed Path Cost 802.1D Edition 802.1w-2001STP Example Using STP on a Network with Multiple VLANsConfiguring STP/RSTP Protocol of Redundancy Root/Not RootBridge priority Hello time secConfiguration Limits of RSTP/STP Enable STP per PortMax. Age sec Port PriorityWhat is Traffic Prioritization? Using Traffic PrioritizationConcept of Traffic Prioritization How Traffic Prioritization WorksIeee 802.1p Priority Level Ieee 802.1D Traffic Type Differentiated Services DiffServ Traffic MarkingTraffic Prioritization QoS Classification Configuring Traffic PrioritizationTraffic Queues Queuing Mechanism Default Port PriorityInspect TOS Inspect COSTOS/DiffServ Mapping CoS MappingWhat is a VLAN? Using Virtual LANConcept of Virtual LAN Vlan Benefits of VLANsManagement Vlan VLANs and Moxa EtherDevice SwitchCommunication Between VLANs VLANs Tagged and Untagged MembershipDevice a Switch a Switch B Sample Applications of VLANs using Moxa EtherDevice SwitchVlan Port Settings Configuring 802.1Q VlanPort Pvid Management Vlan SettingPort Fixed Vlan List Tagged Port Forbidden Vlan ListWhat is an IP Multicast? Using Multicast FilteringConcept of Multicast Filtering Vlan TableNetwork without multicast filtering Multicast FilteringMulticast Filtering and Moxa EtherDevice Switch Configuring Multicast FilteringIgmp Multicast Filtering Enabling Igmp SnoopingIgmp Snooping Enable Global Igmp Snooping Settings Querier intervalIgmp Snooping Enable per Vlan Static Multicast Router PortAdd Static Multicast MAC Using Rate LimitingIgmp Table Add New Static Multicast Address to the ListIngress Policy Configuring Rate LimitingRate of Low Priority Queue Rate of Normal Priority QueueAdding a Static Unicast MAC Address Using Port LockRate of Medium Priority Queue Rate of High Priority QueueConfiguring Port Lock Using Auto WarningConfiguring Email Warning Add Static Unicast MAC AddressConfiguring Email Settings Email Alarm Events SettingsActivate your settings and test email if necessary Event TypesMoxaEtherDeviceSwitch0001@SwitchLocation Email SettingsPort Event Configuring Relay Event Types Configuring Relay WarningMail Server IP/Name Email AddressActivate your settings Relay Alarm Events SettingsRelay Alarm List Using Line-Swap-Fast-RecoveryOverride relay alarm settings Configuring Line-Swap Fast Recovery Using Set Device IPEnable Line-Swap-Fast-Recovery Set up the connected devices Configuring Set Device IPMirror Port Using DiagnosisDesired IP Address Output data streamMonitor by Switch Using MonitorPing Monitor by Port ALL Using the MAC Address TableUsing Event Log Page EDS Configurator GUI Broadcast Search Starting EDS ConfiguratorSearch by IP address Modify IP Address Upgrade FirmwareExport Configuration Import Configuration Locked Unlock ServerUnlocked BlankLocked Fixed FixedUnlocked Fixed MIB Groups Page Technology SpecificationsInterface Optical FiberMechanical PowerEnvironment Regulatory ApprovalsService Information Following services are provided Moxa Internet ServicesMoxa Product % EDS-508 Problem Report FormSerial Number Product Return Procedure
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