Cisco Systems SRW248G4P manual Spanning Tree STP Port Settings

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Chapter 5

Configuring the Switch

Spanning Tree Type  Specifies the type of spanning tree used on the Switch:

•STP  Spanning Tree Protocol (IEEE 802..1D); i..e.., when this option is selected, the Switch will use RSTP set to STP forced compatibility mode)..

•RSTP  Rapid Spanning Tree Protocol (IEEE 802..1w).. RSTP is the default..

•MSTP  Multiple Spanning Tree Protocol (IEEE 802..1s)..

BPDU Handling  The maximum transmission rate for BPDUs is specified by setting the minimum interval between the transmission of consecutive protocol messages.. Select the transmission rate from the drop- down menu.. (Range: 1-10; Default: 3)

Path Cost Method  The path cost is used to determine the best path between devices.. The path cost method is used to determine the range of values that can be assigned to each interface.. Select the method from the drop-down menu..

•Long  Specifies 32-bit based values that range from 1- 200,000,000..

•Short  Specifies 16-bit based values that range from 1-65535..

Priority  Bridge priority is used in selecting the root device, root port, and designated port.. The device with the highest priority becomes the STA root device.. However, if all devices have the same priority, the device with the lowest MAC address will then become the root device..

NOTE: Lower numeric values indicate higher priority..

Enter a value for the bridge priority into the Priority text field.. The value must be within the range below and in steps of 4096.. A full list of valid values are provided below.. (see Options)

Default: 32768

Range: 0-61440, in steps of 4096

Options: 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864, 40960, 45056, 49152, 53248, 57344, 61440

Hello Time  Interval (in seconds) at which the root device transmits a configuration message.. To enable Hello Time click the Hello Time option and enter the required interval value in the Hello Time field..

Default: 2

Minimum: 1

Maximum: The lower of 10 or [(Max.. Message Age / 2) -1]

Maximum Age  The maximum time (in seconds) a device can wait without receiving a configuration message before attempting to reconfigure.. All device ports (except for designated ports) should receive configuration messages at regular intervals.. Any port that ages out STP information (provided in the last configuration message) becomes the designated port for the attached LAN.. If it is a root port, a new root port is selected from among the device ports attached to the network.. (References to “ports” in this section mean “interfaces,” which includes both ports and LAGs..) To enable Maximum Age click the Maximum Age option and enter the required time (in seconds) in the Maximum Age field..

Default: 20

Minimum: The higher of 6 or [2 x (Hello Time + 1)]..

Maximum: The lower of 40 or [2 x (Forward Delay - 1)]

Forward Delay  The maximum time (in seconds) this device will wait before changing states (i..e.., discarding to learning to forwarding).. This delay is required because every device must receive information about topology changes before it starts to forward frames.. In addition, each port needs time to listen for conflicting information that would make it return to a discarding state; otherwise, temporary data loops might result.. To enable Forward Delay, click the Forward Delay option and enter the maximum time (in seconds) in the Forward Delay field..

Default: 15

Minimum: The higher of 4 or [(Max.. Message Age / 2) + 1]

Maximum: 30

Modify the required attributes for STP.. Click Save Settings to save the changes..

Spanning Tree > STP Port Settings

Spanning Tree > STP Port Settings

48-Port 10/100 + 4-Port Gigabit Switch with WebView and Power over Ethernet

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Contents User Guide Table of Contents ACL Appendix a About Gigabit Ethernet and Fiber Optic Cabling Appendix E Contact InformationIcon Descriptions About This GuideOnline Resources Copyright and TrademarksChapter Introduction ChapterFront Panel Chapter Product OverviewSide Panel Back PanelOverview Pre-Installation ConsiderationsPlacement Options Uplinking the Switch Hardware InstallationDesktop Placement Rack-Mount PlacementConfiguring the HyperTerminal Application Chapter Configuration Using Console InterfaceSwitch Main Menu LoginSystem Configuration Menu System ConfigurationUser & Password Settings Management SettingsIP Address Settings IP ConfigurationFile Management Restore System Default SettingsReboot System PoE Configuration Port ConfigurationPort Status Back to Main MenuPort PoE Configuration System PoE ConfigurationPort PoE Status LogoutDevice Information SetupSetup Summary System Information Setup Network SettingsPoE Information IdentificationSet Time Setup TimePort Management Port Management Port SettingsEdit Port Settings Port Broadcast Control Port Management Link AggregationGlobal Setting Port Management PoE Power SettingsPort Setting Port Management LacpVlan Management Vlan Management Port SettingsVlan Management Create Vlan Create VlanVlan Management Vlan to Ports Vlan Management Ports to VlanStatistics Rmon History StatisticsStatistics Rmon Statistics Statistics Rmon Events Statistics Rmon AlarmsStatistics 802.1x Statistics Statistics Port UtilizationACL MAC based ACL ACL IP based ACLRadius Server Setting Security Authentication ServersSecurity Security ACL BindingTacacs Server Setting Security 802.1x SettingsSecurity Ports Security Security Management ACL Security Https SettingsSecurity SSH Host-Key Settings Security SSH SettingsCoS to Queue QoS CoS SettingsQoS QoS Dscp Settings QoS Queue SettingsQueue Settings Port to CoSClass Map QoS DiffServ SettingsPolicy Map QoS Bandwidth Spanning TreeQoS DiffServ Port Binding Spanning Tree Global STP Spanning Tree STP StatusSpanning Tree STP Port Settings Spanning Tree STP Port Settings STP Port Setting Detail Spanning Tree Rstp Port Settings Spanning Tree Mstp Properties Spanning Tree Mstp Instance SettingsSpanning Tree Mstp Interface Settings Multicast Multicast Static Member Ports Multicast Global SettingsMulticast Router Ports Query Multicast Static Router PortsMulticast Member Ports Query Snmp Global Parameters Snmp Group Profile Snmp ViewsSnmp Group Membership User AuthenticationSnmp Communities Data PrivacyAdmin User Authentication AdminSnmp Notification Recipient SNMPv1,2Static Address Setting Admin Forwarding DatabaseAddress Aging Dynamic Address QuerySyslog Admin LogSystem Logging Smtp Setting Admin Port MirroringAdmin Save Configuration Admin Cable TestAdmin Ping Admin Http Upgrade Admin Jumbo FrameAdmin Firmware Upgrade Admin Factory Default Admin RebootFiber Optic Cabling Appendix a About Gigabit Ethernet Fiber Optic CablingGigabit Ethernet Appendix B Glossary Appendix BGlossary Smtp Simple Mail Transfer Protocol The standard e Appendix B Appendix C Appendix C SpecificationsSpecifications Limited Warranty Appendix D Warranty and Regulatory InformationFCC Statement Safety NoticesIndustry Canada Canada IC StatementDansk Danish Miljøinformation for kunder i EU La Directiva 2002/96/CE de la UE exige que los equipos que Norsk Norwegian Miljøinformasjon for kunder i EU WEB For additional information, please visit Appendix E

SRW248G4P specifications

Cisco Systems SRW248G4P is a high-performance Layer 2 switch designed specifically for small to medium-sized businesses that require robust networking solutions. This switch supports Power over Ethernet (PoE), providing a highly flexible option for powering devices such as IP phones, wireless access points, and surveillance cameras.

One of the standout features of the SRW248G4P is its 48 10/100 Ethernet ports, which ensure ample connectivity for various networked devices. Additionally, it offers four Gigabit Ethernet uplink ports, allowing for seamless integration with existing network infrastructure and facilitating high-speed data transfer. The combination of these ports enables businesses to expand their network capabilities as needed without the immediate requirement for added devices.

The SRW248G4P comes equipped with advanced Layer 2 switching capabilities, including VLAN support, which enables the segmentation of network traffic for improved performance and security. It also supports Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP), which help prevent network loops and ensure redundancy. With features like Link Aggregation Control Protocol (LACP), multiple physical connections can be combined into a single logical link, enhancing bandwidth and providing failover capabilities.

Another critical attribute of the Cisco SRW248G4P is its user-friendly management interface. The switch can be managed through a web-based interface, allowing IT administrators to configure settings, monitor performance, and troubleshoot issues with ease. Additionally, it supports SNMP (Simple Network Management Protocol) for integration with network management systems, further simplifying monitoring tasks.

Power over Ethernet functionality is a significant advantage of the SRW248G4P, providing up to 15.4 watts per port. This capability simplifies installation and reduces the clutter of power cords and outlets. Organizations can deploy PoE-enabled devices in locations that lack power sources, thus enhancing overall flexibility in network design.

In summary, the Cisco Systems SRW248G4P is a feature-rich switch tailored for small to medium-sized enterprises. Its blend of performance, management capabilities, and advanced features like PoE makes it a valuable asset in any organization's networking setup. By ensuring reliable connectivity and ease of management, businesses can focus more on growth and their core objectives rather than worrying about network complexities.
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