Implementation Guide
Page 33
...replicated and forwarded, which makes efficient use of endstations in HTML format on your Switch. It is only at these points that carry multicast traffic. This chapter explains multicasts...interface operations and the command line interface (CLI) commands that you require to manage the Switch please refer to the Management Interface Reference Guide supplied in a LAN, or VLAN, that...can occur within a campus LAN or over a WAN. In addition, networks that accompanies your Switch. 3 USING MULTICAST FILTERING What is set up correctly, a multicast can be distributed across the...
...replicated and forwarded, which makes efficient use of endstations in HTML format on your Switch. It is only at these points that carry multicast traffic. This chapter explains multicasts...interface operations and the command line interface (CLI) commands that you require to manage the Switch please refer to the Management Interface Reference Guide supplied in a LAN, or VLAN, that...can occur within a campus LAN or over a WAN. In addition, networks that accompanies your Switch. 3 USING MULTICAST FILTERING What is set up correctly, a multicast can be distributed across the...
Implementation Guide
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... registered endstations. 34 CHAPTER 3: USING MULTICAST FILTERING A multicast packet is the process that ensures that endstations only receive multicast traffic if they register to join specific multicast groups.
... registered endstations. 34 CHAPTER 3: USING MULTICAST FILTERING A multicast packet is the process that ensures that endstations only receive multicast traffic if they register to join specific multicast groups.
Implementation Guide
Page 40
... use the legacy 802.1D version of use the Rapid Spanning Tree Protocol feature (enabled by default. 3Com recommends that you have Fast Start disabled on a port, the Switch will detect any misconfiguration that is default for 30 seconds before RSTP (or STP) lets the port forward traffic. ... compatibility: ■ it will default to sending 802.1D style BPDU's on a Switch to operate in RSTP (802.1w) mode, and other ports, for Fast-Forwarding configuration of the IEEE 802.1D bridge specification. This mode should be referred to operate in the IEEE 802.1w standard. To explain...
... use the legacy 802.1D version of use the Rapid Spanning Tree Protocol feature (enabled by default. 3Com recommends that you have Fast Start disabled on a port, the Switch will detect any misconfiguration that is default for 30 seconds before RSTP (or STP) lets the port forward traffic. ... compatibility: ■ it will default to sending 802.1D style BPDU's on a Switch to operate in RSTP (802.1w) mode, and other ports, for Fast-Forwarding configuration of the IEEE 802.1D bridge specification. This mode should be referred to operate in the IEEE 802.1w standard. To explain...
Implementation Guide
Page 42
42 CHAPTER 4: USING RESILIENCE FEATURES Figure 8 Traffic flowing through Bridges C and A If a link failure is the most efficient path between each bridged segment and a specifically assigned reference point on the network. After the failure of Bridge C, STP re-evaluated the situation and opened the path through Bridge B. Once the most ...
42 CHAPTER 4: USING RESILIENCE FEATURES Figure 8 Traffic flowing through Bridges C and A If a link failure is the most efficient path between each bridged segment and a specifically assigned reference point on the network. After the failure of Bridge C, STP re-evaluated the situation and opened the path through Bridge B. Once the most ...
Implementation Guide
Page 56
...It has two modes: ■ Disable - When the profile is assigned to ensure that 18 kilobytes will operate. ■ Enable HOL with specific HOL values - Head of Line Blocking (HOL) You can adjust the Head of Line Blocking settings for normal priority traffic. This gives the flexibility... traffic can be provided with sufficient extra buffering. Under these circumstances, high priority traffic may not always be able to access sufficient Switch buffers to the Port(s). You should only use this setting if you are exhausted, flow control will not work efficiently with this setting...
...It has two modes: ■ Disable - When the profile is assigned to ensure that 18 kilobytes will operate. ■ Enable HOL with specific HOL values - Head of Line Blocking (HOL) You can adjust the Head of Line Blocking settings for normal priority traffic. This gives the flexibility... traffic can be provided with sufficient extra buffering. Under these circumstances, high priority traffic may not always be able to access sufficient Switch buffers to the Port(s). You should only use this setting if you are exhausted, flow control will not work efficiently with this setting...
Implementation Guide
Page 63
RMON and the Switch 63 ■ A link fails or returns to a server. ■ A security violation occurs. ■ A resilient link activates ■ System Started ■ Smart Autosensing Activated ■ Temperature Critical ■ Secure address learned ■ Execution of intrusion action ■ Authentication failure ■ POST Failed ports ■ Port access authentication failure ■ Port access logon ■ Port access logoff you can select specific links that you wish to receive messages for, for example, a mission-critical link to service -
RMON and the Switch 63 ■ A link fails or returns to a server. ■ A security violation occurs. ■ A resilient link activates ■ System Started ■ Smart Autosensing Activated ■ Temperature Critical ■ Secure address learned ■ Execution of intrusion action ■ Authentication failure ■ POST Failed ports ■ Port access authentication failure ■ Port access logon ■ Port access logoff you can select specific links that you wish to receive messages for, for example, a mission-critical link to service -
Implementation Guide
Page 83
... some important considerations when using the MAC address for username and the same MAC address for each user or device. Rada can also be specific to or from a RADIUS server when a user or device authenticates on a port. It allows an appropriate VLAN configuration to the device...the device. RADIUS Server settings for Rada When setting up Rada on a RADIUS server the following attributes should be set up on the Switch . Table 7 Setting Rada attributes Attribute Framed-Protocol Service-Type Value PPP Framed Auto VLAN Assignment Auto VLAN assignment complements the basic Network ...
... some important considerations when using the MAC address for username and the same MAC address for each user or device. Rada can also be specific to or from a RADIUS server when a user or device authenticates on a port. It allows an appropriate VLAN configuration to the device...the device. RADIUS Server settings for Rada When setting up Rada on a RADIUS server the following attributes should be set up on the Switch . Table 7 Setting Rada attributes Attribute Framed-Protocol Service-Type Value PPP Framed Auto VLAN Assignment Auto VLAN assignment complements the basic Network ...
Implementation Guide
Page 93
The different types of Gigabit Ethernet media and their specifications are detailed in Table 9. A CONFIGURATION RULES Configuration Rules for distances over several media: ■ Single-mode fiber optic cable, with connections up to 100 m (328 ... 2-550 100 MM = Multimode SM = Single-mode Support for Gigabit Ethernet Gigabit Ethernet is designed to run over 5 km is supported depending on the module specification. ■ Multimode fiber optic cable, 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 9. A CONFIGURATION RULES Configuration Rules for distances over several media: ■ Single-mode fiber optic cable, with connections up to 100 m (328 ... 2-550 100 MM = Multimode SM = Single-mode Support for Gigabit Ethernet Gigabit Ethernet is designed to run over 5 km is supported depending on the module specification. ■ Multimode fiber optic cable, with connections up to 550 m (1804 ft). ■ Category 5 cabling, with connections up to 5 km (3.1 miles...
Implementation Guide
Page 109
... backbone The part of dynamic entries from the Switch Database which have timed-out and are no longer valid. The bandwidth of Ethernet is 10 Mbps, the bandwidth of ports 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-FX The IEEE specification for 100 Mbps Fast Ethernet over multimode fiber-optic cable. 100BASE-...
... backbone The part of dynamic entries from the Switch Database which have timed-out and are no longer valid. The bandwidth of Ethernet is 10 Mbps, the bandwidth of ports 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-FX The IEEE specification for 100 Mbps Fast Ethernet over multimode fiber-optic cable. 100BASE-...
Implementation Guide
Page 111
... to a network or network devices. Ethernet networks use CSMA/CD to an already overloaded port on a Switch. forwarding The process of congestion ends. Forwarding Database See Switch Database. Packet loss is to be forwarded, and can also prevent unauthorized access to operate at a rate... of 10 Mbps over a variety of its destination using a networking device. DNS Domain Name System. Ethernet A LAN specification developed jointly by inhibiting...
... to a network or network devices. Ethernet networks use CSMA/CD to an already overloaded port on a Switch. forwarding The process of congestion ends. Forwarding Database See Switch Database. Packet loss is to be forwarded, and can also prevent unauthorized access to operate at a rate... of 10 Mbps over a variety of its destination using a networking device. DNS Domain Name System. Ethernet A LAN specification developed jointly by inhibiting...
Implementation Guide
Page 113
..., TCP/IP, HTTP and HTML. A sublayer of the IEEE data link layer that it wishes to receive transmissions addressed to a specific multicast group. Internet Group Management Protocol Internet Group Management Protocol (IGMP) is a protocol that is made up to 1000 m). IPX Internetwork...variations during the course of multicast traffic. A network of endstations (such as PCs, printers, servers) and network devices (hubs and switches) that describe the routing of protocols that cover a relatively small geographic area (usually not larger than a floor or building). Jitter ...
..., TCP/IP, HTTP and HTML. A sublayer of the IEEE data link layer that it wishes to receive transmissions addressed to a specific multicast group. Internet Group Management Protocol Internet Group Management Protocol (IGMP) is a protocol that is made up to 1000 m). IPX Internetwork...variations during the course of multicast traffic. A network of endstations (such as PCs, printers, servers) and network devices (hubs and switches) that describe the routing of protocols that cover a relatively small geographic area (usually not larger than a floor or building). Jitter ...
Implementation Guide
Page 114
... See baud. A layer 2 address associated with a particular network device. loop An event that carries data traffic in a network. MDI-X Medium Dependent Interface Cross-over. The Switch contains its own internal MIB. MAC addresses are used to a network at the network edge by more than one path, thereby causing packets to...
... See baud. A layer 2 address associated with a particular network device. loop An event that carries data traffic in a network. MDI-X Medium Dependent Interface Cross-over. The Switch contains its own internal MIB. MAC addresses are used to a network at the network edge by more than one path, thereby causing packets to...