Cisco Systems SRW248G4P manual Multicast

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Chapter 5

Configuring the Switch

Spanning Tree > MSTP Interface Settings > MSTP Port Setting Detail

Designated Cost  The cost for a packet to travel from this port to the root in the current SpanningTree configuration.. The slower the media, the higher the cost..

Designated Port  The port priority and number of the port on the designated bridging device through which the Switch must communicate with the root of the Spanning Tree..

Designated Bridge  The bridge priority and MAC address of the device through which this port must communicate to reach the root of the Spanning Tree..

Path Cost  This parameter is used by the STP to determine the best path between devices.. Therefore, lower values should be assigned to ports attached to faster media, and higher values assigned to ports with slower media.. (Path cost takes precedence over port priority..) Note that when the Path Cost Method is set to “short,” the maximum path cost is 65,535..

Range –

Ethernet: 200,000-20,000,000

Fast Ethernet: 20,000-2,000,000

Gigabit Ethernet: 2,000-200,000 Default –

Ethernet – Half duplex: 2,000,000; full duplex: 1,000,000;

LAG: 500,000

Fast Ethernet – Half duplex: 200,000; full duplex: 100,000;

LAG: 50,000

Gigabit Ethernet – Full duplex: 10,000; LAG: 5,000

Interface Priority  Defines the priority used for this port in the Spanning Tree Protocol.. If the path cost for all ports on a switch are the same, the port with the highest priority (i..e.., lowest value) will be configured as an active link in the Spanning Tree.. This makes a port with higher priority less likely to be blocked if the Spanning Tree Protocol is detecting network loops.. Where more than one port is assigned the highest priority, the port with lowest numeric identifier will be enabled..

Default: 128

Range: 0-240, in steps of 16

Multicast

The Internet Group Management Protocol (IGMP) runs between hosts and their immediately adjacent multicast router/switch.. IGMP is a multicast host registration protocol that allows any host to inform its local router that it wants to receive transmissions addressed to a specific multicast group..

A router, or multicast-enabled switch, can periodically ask their hosts if they want to receive multicast traffic.. If there is more than one router/switch on the LAN performing IP multicasting, one of these devices is elected “querier” and assumes the role of querying the LAN for group members.. It then propagates the service requests on to any adjacent multicast switch/router to ensure that it will continue to receive the multicast service..

Based on the group membership information learned from IGMP, a router/switch can determine which (if any) multicast traffic needs to be forwarded to each of its ports.. At Layer 3, multicast routers use this information, along with a multicast routing protocol such as DVMRP or PIM, to support IP multicasting across the Internet..

NOTE: IGMP neither alters nor routes IP multicast packets.. A multicast routing protocol must be used to deliver IP multicast packets across different subnetworks..

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 E Contact Information Appendix a About Gigabit Ethernet and Fiber Optic CablingOnline Resources About This GuideIcon Descriptions Copyright and TrademarksChapter Chapter IntroductionChapter Product Overview Front PanelBack Panel Side PanelPlacement Options Pre-Installation ConsiderationsOverview Desktop Placement Hardware InstallationUplinking the Switch Rack-Mount PlacementChapter Configuration Using Console Interface Configuring the HyperTerminal ApplicationSystem Configuration Menu LoginSwitch Main Menu System ConfigurationManagement Settings User & Password SettingsIP Configuration IP Address SettingsReboot System Restore System Default SettingsFile Management Port Status Port ConfigurationPoE Configuration Back to Main MenuPort PoE Status System PoE ConfigurationPort PoE Configuration LogoutSetup Summary SetupDevice Information PoE Information Setup Network SettingsSystem Information IdentificationSetup Time Set TimeEdit Port Settings Port Management Port SettingsPort Management Port Management Link Aggregation Port Broadcast ControlPort Setting Port Management PoE Power SettingsGlobal Setting Port Management LacpVlan Management Create Vlan Vlan Management Port SettingsVlan Management Create VlanVlan Management Ports to Vlan Vlan Management Vlan to PortsStatistics Rmon Statistics StatisticsStatistics Rmon History Statistics Rmon Alarms Statistics Rmon EventsStatistics Port Utilization Statistics 802.1x StatisticsACL IP based ACL ACL MAC based ACLSecurity Security Authentication ServersRadius Server Setting Security ACL BindingSecurity 802.1x Settings Tacacs Server SettingSecurity Ports Security Security Https Settings Security Management ACLSecurity SSH Settings Security SSH Host-Key SettingsQoS QoS CoS SettingsCoS to Queue Queue Settings QoS Queue SettingsQoS Dscp Settings Port to CoSQoS DiffServ Settings Class MapPolicy Map QoS DiffServ Port Binding Spanning TreeQoS Bandwidth Spanning Tree STP Status Spanning Tree Global STPSpanning Tree STP Port Settings Spanning Tree STP Port Settings STP Port Setting Detail Spanning Tree Rstp Port Settings Spanning Tree Mstp Instance Settings Spanning Tree Mstp PropertiesSpanning Tree Mstp Interface Settings Multicast Multicast Global Settings Multicast Static Member PortsMulticast Member Ports Query Multicast Static Router PortsMulticast Router Ports Query Snmp Global Parameters Snmp Views Snmp Group ProfileSnmp Communities User AuthenticationSnmp Group Membership Data PrivacySnmp Notification Recipient AdminAdmin User Authentication SNMPv1,2Address Aging Admin Forwarding DatabaseStatic Address Setting Dynamic Address QuerySystem Logging Admin LogSyslog Admin Port Mirroring Smtp SettingAdmin Ping Admin Cable TestAdmin Save Configuration Admin Firmware Upgrade Admin Jumbo FrameAdmin Http Upgrade Admin Reboot Admin Factory DefaultGigabit Ethernet Appendix a About Gigabit Ethernet Fiber Optic CablingFiber Optic Cabling Appendix B Appendix B GlossaryGlossary Smtp Simple Mail Transfer Protocol The standard e Appendix B Appendix C Specifications Appendix CSpecifications Appendix D Warranty and Regulatory Information Limited WarrantyIndustry Canada Canada Safety NoticesFCC Statement 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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