Implementation Guide
Page 7
... site. It assumes a working knowledge of the specific features your network. ABOUT THIS GUIDE This guide describes the features of your Switch supports. Most user guides and release notes are used when referring to optimize the performance of the 3Com Switch 3812 (12-port, Managed Gigabit) and 3Com Switch 3824 (24-port, Managed Gigabit). This guide is...
... site. It assumes a working knowledge of the specific features your network. ABOUT THIS GUIDE This guide describes the features of your Switch supports. Most user guides and release notes are used when referring to optimize the performance of the 3Com Switch 3812 (12-port, Managed Gigabit) and 3Com Switch 3824 (24-port, Managed Gigabit). This guide is...
Implementation Guide
Page 27
...ROM that reaches group members diverges. thus, multicast transmissions can be distributed across the network until the delivery path that accompanies your Switch. A multicast is a packet that is an IP Multicast? ■ Multicast Filtering ■ IGMP Multicast Filtering For detailed descriptions... What is only at these points that carry multicast traffic. In addition, networks that you require to manage the Switch please refer to a specific multicast group. This chapter explains multicasts, multicast filtering, and how multicast filtering can occur within a campus LAN or...
...ROM that reaches group members diverges. thus, multicast transmissions can be distributed across the network until the delivery path that accompanies your Switch. A multicast is a packet that is an IP Multicast? ■ Multicast Filtering ■ IGMP Multicast Filtering For detailed descriptions... What is only at these points that carry multicast traffic. In addition, networks that you require to manage the Switch please refer to a specific multicast group. This chapter explains multicasts, multicast filtering, and how multicast filtering can occur within a campus LAN or...
Implementation Guide
Page 28
There are situations where a multicast approach is the process that ensures that traffic to join specific multicast groups. A typical use of network bandwidth and scales well as Quality of Service (QoS). With multicast filtering, network devices only forward multicast traffic to ...
There are situations where a multicast approach is the process that ensures that traffic to join specific multicast groups. A typical use of network bandwidth and scales well as Quality of Service (QoS). With multicast filtering, network devices only forward multicast traffic to ...
Implementation Guide
Page 35
... of RSTP are: ■ Faster determination of the Active Spanning Tree topology throughout a bridged network. ■ Support for bridges with more effectively, your Switch to as defined in STP (802.1D) mode. ■ you to implement parallel paths for some ports on page 39. Fast Start allows a port...referred to use the legacy 802.1D version of the IEEE Std 802.1D, 1998 Edition bridge specification. For details on how the two systems differ, see "How RSTP Differs to STP" on a Switch to operate in RSTP (802.1w) mode, and other ports, for the Fast-Forwarding configuration of...
... of RSTP are: ■ Faster determination of the Active Spanning Tree topology throughout a bridged network. ■ Support for bridges with more effectively, your Switch to as defined in STP (802.1D) mode. ■ you to implement parallel paths for some ports on page 39. Fast Start allows a port...referred to use the legacy 802.1D version of the IEEE Std 802.1D, 1998 Edition bridge specification. For details on how the two systems differ, see "How RSTP Differs to STP" on a Switch to operate in RSTP (802.1w) mode, and other ports, for the Fast-Forwarding configuration of...
Implementation Guide
Page 37
... and opened the path through a network. STP Requirements Before it can configure the network, the STP system requires: ■ Communication between each bridged segment and a specifically assigned reference point on the network. This specifies which is the most efficient path between all other paths are transmitted in Figure 8, Figure 9, and Figure... traffic through Bridge B. Once the most efficient path has been determined, all the bridges. This communication is carried out using the MAC address of your Switch is 32768.
... and opened the path through a network. STP Requirements Before it can configure the network, the STP system requires: ■ Communication between each bridged segment and a specifically assigned reference point on the network. This specifies which is the most efficient path between all other paths are transmitted in Figure 8, Figure 9, and Figure... traffic through Bridge B. Once the most efficient path has been determined, all the bridges. This communication is carried out using the MAC address of your Switch is 32768.
Implementation Guide
Page 47
...specific application, for example, Netmeeting or Lotus Notes. ■ Device-based rules - The rules define different types of traffic and specify how each type should be controlled by a set of rules to ensure that high priority data is the default level of QoS supported by the Switch 3812 and Switch 3824...delivery. describe how to deal with traffic that accompanies your Switch. 6 USING TRAFFIC PRIORITIZATION Using the traffic prioritization capabilities of your Switch provides Quality of Service (QoS) to and from specific devices, for example, servers or server farms. This ...
...specific application, for example, Netmeeting or Lotus Notes. ■ Device-based rules - The rules define different types of traffic and specify how each type should be controlled by a set of rules to ensure that high priority data is the default level of QoS supported by the Switch 3812 and Switch 3824...delivery. describe how to deal with traffic that accompanies your Switch. 6 USING TRAFFIC PRIORITIZATION Using the traffic prioritization capabilities of your Switch provides Quality of Service (QoS) to and from specific devices, for example, servers or server farms. This ...
Implementation Guide
Page 75
..., with connections up to 550 m (1804 ft). ■ Category 5 cabling, with connections up to 5 km (3.1 miles). The different types of Gigabit Ethernet media and their specifications are detailed in Table 10. A CONFIGURATION RULES Configuration Rules for distances over several media: ■ Single-mode fiber optic cable, with connections up to 100...
..., with connections up to 550 m (1804 ft). ■ Category 5 cabling, with connections up to 5 km (3.1 miles). The different types of Gigabit Ethernet media and their specifications are detailed in Table 10. A CONFIGURATION RULES Configuration Rules for distances over several media: ■ Single-mode fiber optic cable, with connections up to 100...
Implementation Guide
Page 89
... Ethernet is 10 Mbps, the bandwidth of dynamic entries from the Switch Database which have timed-out and are no longer valid. auto-negotiation A feature on twisted pair ports that allows them to manage 3Com's Supervisor networking solutions. 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE...
... Ethernet is 10 Mbps, the bandwidth of dynamic entries from the Switch Database which have timed-out and are no longer valid. auto-negotiation A feature on twisted pair ports that allows them to manage 3Com's Supervisor networking solutions. 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE...
Implementation Guide
Page 91
... File Transfer Protocol. it is caused when devices send traffic to an already overloaded port on the network. Forwarding Database See Switch Database. half duplex A system that is designed to operate at 100Mbps. full duplex A system that is to be forwarded,...whether traffic is connected to a network. Packet loss is compatible with full duplex. Hubs are generally more sophisticated. Ethernet A LAN specification developed jointly by inhibiting devices from generating more LANs than a repeater and are similar to repeaters, in effect, doubles the potential ...
... File Transfer Protocol. it is caused when devices send traffic to an already overloaded port on the network. Forwarding Database See Switch Database. half duplex A system that is designed to operate at 100Mbps. full duplex A system that is to be forwarded,...whether traffic is connected to a network. Packet loss is compatible with full duplex. Hubs are generally more sophisticated. Ethernet A LAN specification developed jointly by inhibiting devices from generating more LANs than a repeater and are similar to repeaters, in effect, doubles the potential ...
Implementation Guide
Page 92
...IEEE Std 802.1X-2001 A standard that defines VLAN tagging. IGMP snooping A mechanism performed by an intermediate device, such as a Layer 2 Switch, that defines link aggregation. 802.3ad is now incorporated into the relevant sections of rules for exchanging files (text, graphic images, sound, ...IGMP protocol traffic. In the network management area, this group is now incorporated into the relevant sections of bridges in addition to a specific multicast group. IEEE Std 802.3x A standard that defines a system of flow control for ports that runs between hosts and their...
...IEEE Std 802.1X-2001 A standard that defines VLAN tagging. IGMP snooping A mechanism performed by an intermediate device, such as a Layer 2 Switch, that defines link aggregation. 802.3ad is now incorporated into the relevant sections of rules for exchanging files (text, graphic images, sound, ...IGMP protocol traffic. In the network management area, this group is now incorporated into the relevant sections of bridges in addition to a specific multicast group. IEEE Std 802.3x A standard that defines a system of flow control for ports that runs between hosts and their...
Implementation Guide
Page 94
...A system that allows a network device to only forward multicast traffic to an endstation if it has registered that it is connected to a specific group of another device. protocol A set of a networking device. MDI-X Medium Dependent Interface Cross-over. POST Power On Self Test. RADIUS...transmitter of one device is powered-up. MIBs are used by the Simple Network Management Protocol (SNMP) to receive that a Switch carries out when it would like to gather information about the management characteristics and parameters of rules for carrying authentication, authorization ...
...A system that allows a network device to only forward multicast traffic to an endstation if it has registered that it is connected to a specific group of another device. protocol A set of a networking device. MDI-X Medium Dependent Interface Cross-over. POST Power On Self Test. RADIUS...transmitter of one device is powered-up. MIBs are used by the Simple Network Management Protocol (SNMP) to receive that a Switch carries out when it would like to gather information about the management characteristics and parameters of rules for carrying authentication, authorization ...