Implementation Guide
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... Alarm Events 62 8 SETTING UP VIRTUAL LANS What are VLANs? 63 Benefits of VLANs 64 VLANs and Your Switch 65 The Default VLAN 65 Communication Between VLANs 65 Creating New VLANs 66 VLANs: Tagged and Untagged Membership 66 VLAN Configuration Examples 67 Using... Untagged Connections 67 Using 802.1Q Tagged Connections 68 9 USING AUTOMATIC IP CONFIGURATION How Your Switch Obtains IP Information 72 How Automatic IP Configuration Works 72 Automatic ...
... Alarm Events 62 8 SETTING UP VIRTUAL LANS What are VLANs? 63 Benefits of VLANs 64 VLANs and Your Switch 65 The Default VLAN 65 Communication Between VLANs 65 Creating New VLANs 66 VLANs: Tagged and Untagged Membership 66 VLAN Configuration Examples 67 Using... Untagged Connections 67 Using 802.1Q Tagged Connections 68 9 USING AUTOMATIC IP CONFIGURATION How Your Switch Obtains IP Information 72 How Automatic IP Configuration Works 72 Automatic ...
Implementation Guide
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A CONFIGURATION RULES Configuration Rules for Gigabit Ethernet 75 Configuration Rules for Fast Ethernet 76 Configuration Rules with Full Duplex 77 B NETWORK CONFIGURATION EXAMPLES Simple Network Configuration Examples 80 Desktop Switch Example 80 Advanced Network Configuration Examples 81 Improving the Resilience of Your Network 81 Enhancing the Performance of Your Network 82 C IP ADDRESSING IP Addresses 83 Simple Overview 83 Advanced Overview 84 Subnets and Subnet Masks 86 Default Gateways 88 GLOSSARY INDEX
A CONFIGURATION RULES Configuration Rules for Gigabit Ethernet 75 Configuration Rules for Fast Ethernet 76 Configuration Rules with Full Duplex 77 B NETWORK CONFIGURATION EXAMPLES Simple Network Configuration Examples 80 Desktop Switch Example 80 Advanced Network Configuration Examples 81 Improving the Resilience of Your Network 81 Enhancing the Performance of Your Network 82 C IP ADDRESSING IP Addresses 83 Simple Overview 83 Advanced Overview 84 Subnets and Subnet Masks 86 Default Gateways 88 GLOSSARY INDEX
Implementation Guide
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...without any restrictions. ■ Secure All currently learnt addresses on the port will be dropped. 12 CHAPTER 1: SWITCH FEATURES OVERVIEW Automatic IP Your Switch can provide redundancy - Aggregated links provide two benefits: ■ They can potentially increase the bandwidth of ports...: ■ No Security Port security is disabled and all network traffic is enabled (default), a port "advertises" its IP information ...
...without any restrictions. ■ Secure All currently learnt addresses on the port will be dropped. 12 CHAPTER 1: SWITCH FEATURES OVERVIEW Automatic IP Your Switch can provide redundancy - Aggregated links provide two benefits: ■ They can potentially increase the bandwidth of ports...: ■ No Security Port security is disabled and all network traffic is enabled (default), a port "advertises" its IP information ...
Implementation Guide
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... the lowest IP address election method. IGMP querying is disabled by default on the Web Interface. It also supports IGMP query mode. Figure 7 The effect of multicast filtering Multicast Filtering 29 Multicast Filtering Your Switch provides automatic multicast filtering support using the Bridge > Multicast filter > IGMP > Querymode operation on the Switch 3812 and Switch 3824. This...
... the lowest IP address election method. IGMP querying is disabled by default on the Web Interface. It also supports IGMP query mode. Figure 7 The effect of multicast filtering Multicast Filtering 29 Multicast Filtering Your Switch provides automatic multicast filtering support using the Bridge > Multicast filter > IGMP > Querymode operation on the Switch 3812 and Switch 3824. This...
Implementation Guide
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...Switch 3812 and Switch 3824 are connected to it registers that the LAN or VLAN requires traffic for the multicast groups. 5 When the router forwards traffic for the multicast group and then forwards the packet to become so if its default VLAN, the Switch will configure the Switch to automatically negotiate with the lowest IP... address becomes the querier. IGMP multicast filtering works as the Switch only has an IP address on its own IP address is lower than one IP router, then...
...Switch 3812 and Switch 3824 are connected to it registers that the LAN or VLAN requires traffic for the multicast groups. 5 When the router forwards traffic for the multicast group and then forwards the packet to become so if its default VLAN, the Switch will configure the Switch to automatically negotiate with the lowest IP... address becomes the querier. IGMP multicast filtering works as the Switch only has an IP address on its own IP address is lower than one IP router, then...
Implementation Guide
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... traffic types IEEE 802.1p Priority Level 0 1 2 3 4 5 6 7 IEEE 802.1D Traffic Type Best Effort (default) Background Standard (spare) Excellent Effort (business critical) Controlled Load (streaming multimedia) Video (interactive media), less than 100 milliseconds ...than 10 milliseconds latency and jitter Network Control Reserved traffic The traffic marking and prioritization supported by the Switch using layer 2 information is compatible with the relevant sections of traffic should receive. DSCP is a... Code Point (DSCP) field in the IP header to store the packet priority information.
... traffic types IEEE 802.1p Priority Level 0 1 2 3 4 5 6 7 IEEE 802.1D Traffic Type Best Effort (default) Background Standard (spare) Excellent Effort (business critical) Controlled Load (streaming multimedia) Video (interactive media), less than 100 milliseconds ...than 10 milliseconds latency and jitter Network Control Reserved traffic The traffic marking and prioritization supported by the Switch using layer 2 information is compatible with the relevant sections of traffic should receive. DSCP is a... Code Point (DSCP) field in the IP header to store the packet priority information.
Implementation Guide
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....1D are: ■ No extra tags are required in the packet. ■ DSCP uses the IP header of a packet and therefore priority is preserved across the Internet. ■ DSCP is given a default 802.1p tag (which will result in all knowledge of the old 802.1p tag being lost. ...Basic and Advanced Quality of the OSI 7 layer model. If it does not, then it . The Switch 3812 and Switch 3824 both support basic traffic prioritization. Traffic Re-Marking Traffic entering the Switch may be placed in that map to user-defined service levels, allowing you to the priority information defined ...
....1D are: ■ No extra tags are required in the packet. ■ DSCP uses the IP header of a packet and therefore priority is preserved across the Internet. ■ DSCP is given a default 802.1p tag (which will result in all knowledge of the old 802.1p tag being lost. ...Basic and Advanced Quality of the OSI 7 layer model. If it does not, then it . The Switch 3812 and Switch 3824 both support basic traffic prioritization. Traffic Re-Marking Traffic entering the Switch may be placed in that map to user-defined service levels, allowing you to the priority information defined ...
Implementation Guide
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58 CHAPTER 6: USING TRAFFIC PRIORITIZATION Default QoS Configurations The Switch is pre-configured with the following settings: Table 7 Default traffic classifiers configured in your Switch Classifier Name Classifier Type 3Com NBX Voice-LAN EtherType 3Com NBX Voice-IP DSCP Internet DSCP Network Control Network Control DSCP Protocol Identifier 0x8868 46 48 56 IEEE 802.ID Priority 6 6 7 7 DSCP Marking 46 46 48 56
58 CHAPTER 6: USING TRAFFIC PRIORITIZATION Default QoS Configurations The Switch is pre-configured with the following settings: Table 7 Default traffic classifiers configured in your Switch Classifier Name Classifier Type 3Com NBX Voice-LAN EtherType 3Com NBX Voice-IP DSCP Internet DSCP Network Control Network Control DSCP Protocol Identifier 0x8868 46 48 56 IEEE 802.ID Priority 6 6 7 7 DSCP Marking 46 46 48 56
Implementation Guide
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..., none) was last configured is activated when the Switch powers up the IP information. Automatic Process To detect its IP address information: ■ Automatic IP Configuration (default) - you select an option for the first time the IP configuration setting is the default setting. If you can switch to manual IP configuration at any other parameters such as a subnet mask...
..., none) was last configured is activated when the Switch powers up the IP information. Automatic Process To detect its IP address information: ■ Automatic IP Configuration (default) - you select an option for the first time the IP configuration setting is the default setting. If you can switch to manual IP configuration at any other parameters such as a subnet mask...
Implementation Guide
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...operate correctly, each device on your Switch to enable you use any arbitrary IP address. 3Com suggests you to manage it across a network. IP addresses have a unique IP address. An example IP address is a decimal number between 0 and 255. The IP address can be assigned to your network... within the network. The topics covered are: ■ IP Addresses ■ Subnets and Subnet Masks ■ Default Gateways IP addressing is . ■ Advanced Overview - C IP ADDRESSING This chapter provides some background detail on the IP information that needs to be split into two parts: ...
...operate correctly, each device on your Switch to enable you use any arbitrary IP address. 3Com suggests you to manage it across a network. IP addresses have a unique IP address. An example IP address is a decimal number between 0 and 255. The IP address can be assigned to your network... within the network. The topics covered are: ■ IP Addresses ■ Subnets and Subnet Masks ■ Default Gateways IP addressing is . ■ Advanced Overview - C IP ADDRESSING This chapter provides some background detail on the IP information that needs to be split into two parts: ...
Implementation Guide
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...device on your network which is attached to a remote destination. Instead you configure it is in which the Switch is located. If no default gateway exists on your network, enter the IP address 0.0.0.0 or leave the field blank. This could either be the remote destination or another gateway closer ...the destination device because it to send the packets to a gateway which is used to forward IP packets to multiple segments. An alternative name for the Switch, enter the IP address of the default gateway on the path to the remote destination, and sends the packets to that is not ...
...device on your network which is attached to a remote destination. Instead you configure it is in which the Switch is located. If no default gateway exists on your network, enter the IP address 0.0.0.0 or leave the field blank. This could either be the remote destination or another gateway closer ...the destination device because it to send the packets to a gateway which is used to forward IP packets to multiple segments. An alternative name for the Switch, enter the IP address of the default gateway on the path to the remote destination, and sends the packets to that is not ...
Implementation Guide
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...77 Capture (RMON group) 61 Configuration Restore 15 Save 15 Contents 3 conventions notice icons, About This Guide 8 text, About This Guide 8 D default gateway 88 Default VLAN 65 Designated Bridge 38 Designated Bridge Port 38 INDEX 99 E event notification 14 Events (RMON group) 60, 61 extended network prefix 87 F Fast...802.1Q-1998 65 IEEE Std 802.3-2002 flow control 13, 18 IGMP default setting 29 query mode 29 snooping mode 29 IGMP multicast filtering 30 Internet addresses 83 InterNIC 84 IP (Internet Protocol) addresses 84 IP address 72, 83 classes of 85 defined 84 derivation 84 division of ...
...77 Capture (RMON group) 61 Configuration Restore 15 Save 15 Contents 3 conventions notice icons, About This Guide 8 text, About This Guide 8 D default gateway 88 Default VLAN 65 Designated Bridge 38 Designated Bridge Port 38 INDEX 99 E event notification 14 Events (RMON group) 60, 61 extended network prefix 87 F Fast...802.1Q-1998 65 IEEE Std 802.3-2002 flow control 13, 18 IGMP default setting 29 query mode 29 snooping mode 29 IGMP multicast filtering 30 Internet addresses 83 InterNIC 84 IP (Internet Protocol) addresses 84 IP address 72, 83 classes of 85 defined 84 derivation 84 division of ...
Implementation Guide
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...30 multicasts, description 27 N network addresses 83 network configuration examples 80, 81 non-aging learned SDB entries 46 O obtaining registered IP address 84 P path costs. See subnets Switch Database 45 See Switch Database segment, maximum length 76 Spanning Tree Protocol (STP) 13 Spanning Tree Protocol, see Quality of Service) 14, 47 ...61 groups 59 Root Bridge 37 Root Path Cost 38 Root Port 38 S Save 15 SDB. See port costs permanent SDB entries 46 port costs, default 38 port security 12 port trunks example 24 priority in STP 37 Q QoS (see STP 34 Statistics (RMON group) 60, 61 STP 34 ...
...30 multicasts, description 27 N network addresses 83 network configuration examples 80, 81 non-aging learned SDB entries 46 O obtaining registered IP address 84 P path costs. See subnets Switch Database 45 See Switch Database segment, maximum length 76 Spanning Tree Protocol (STP) 13 Spanning Tree Protocol, see Quality of Service) 14, 47 ...61 groups 59 Root Bridge 37 Root Path Cost 38 Root Port 38 S Save 15 SDB. See port costs permanent SDB entries 46 port costs, default 38 port security 12 port trunks example 24 priority in STP 37 Q QoS (see STP 34 Statistics (RMON group) 60, 61 STP 34 ...