Chapter 8 VLAN
GS-2750 User’s Guide
92
8.6 Subnet Based VLANs
Subnet based VLANs allow you to group traffic into logical VLANs based on the source IP
subnet you specify. When a frame is received on a port, the Switch checks if a tag is added
already and the IP subnet it came from. The untagged packets from the same IP subnet are then
placed in the same subnet based VLAN. One advantage of using subnet based VLANs is that
priority can be assigned to traffic from the same IP subnet.
For example, an ISP (Internet Service Provider) may divide different types of services it
provides to customers into different IP subnets. Traffic for voice services is designated for IP
subnet 172.16.1.0/24, video for 192.168.1.0/24 and data for 10.1.1.0/24. The Switch can then
be configured to group incoming traffic based on the source IP subnet of incoming frames.
You can then configure a subnet based VLAN with priority 6 and VID of 100 for traffic
received from IP subnet 172.16.1.0/24 (voice services). You can also have a subnet based
VLAN with priority 5 and VID of 200 for traffic received from IP subnet 192.168.1.0/24
(video services). Lastly, you can configure VLAN with priority 3 and VID of 300 for traffic
received from IP subnet 10.1.1.0/24 (data services). All untagged incoming frames will be
classified based on their source IP subnet and prioritized accordingly. That is, video services
receive the highest priority and data the lowest.
Figure 35
Subnet Based VLAN Application Example
VLAN Trunking
Enable
VLAN Trunking
on ports connected to other switches or routers (but not
ports directly connected to end users) to allow frames belonging to unknown VLAN
groups to pass through the Switch.
Apply
Click
Apply
to save your changes to the Switch’s run-time memory. The Switch
loses these changes if it is turned off or loses power, so use the
Save
link on the
top navigation panel to save your changes to the non-volatile memory when you
are done configuring.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Table 18
Advanced Application > VLAN > VLAN Port Setting (continued)
LABEL
DESCRIPTION
10.1.1.0/24
192.168.1.0/24
172.16.1.0/24
Internet
VID = 100
VID = 200
VID = 300
Untagged
Frames
Tagged Frames
Содержание GS-2750
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Страница 7: ...Safety Warnings GS 2750 User s Guide 7 This product is recyclable Dispose of it properly ...
Страница 8: ...Safety Warnings GS 2750 User s Guide 8 ...
Страница 26: ...List of Figures GS 2750 User s Guide 26 ...
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Страница 40: ...Chapter 2 Hardware Installation and Connection GS 2750 User s Guide 40 ...
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Страница 58: ...Chapter 4 The Web Configurator GS 2750 User s Guide 58 ...
Страница 64: ...Chapter 5 Initial Setup Example GS 2750 User s Guide 64 ...
Страница 70: ...Chapter 6 System Status and Port Statistics GS 2750 User s Guide 70 ...
Страница 82: ...Chapter 7 Basic Setting GS 2750 User s Guide 82 ...
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Страница 115: ...Chapter 11 Spanning Tree Protocol GS 2750 User s Guide 115 Figure 52 Advanced Application Spanning Tree Protocol MSTP ...
Страница 120: ...Chapter 11 Spanning Tree Protocol GS 2750 User s Guide 120 ...
Страница 134: ...Chapter 15 Link Aggregation GS 2750 User s Guide 134 ...
Страница 144: ...Chapter 17 Port Security GS 2750 User s Guide 144 ...
Страница 155: ...Chapter 19 Policy Rule GS 2750 User s Guide 155 Figure 73 Policy Example example ...
Страница 156: ...Chapter 19 Policy Rule GS 2750 User s Guide 156 ...
Страница 160: ...Chapter 20 Queuing Method GS 2750 User s Guide 160 ...
Страница 166: ...Chapter 21 VLAN Stacking GS 2750 User s Guide 166 ...
Страница 194: ...Chapter 23 Authentication Accounting GS 2750 User s Guide 194 ...
Страница 219: ...219 PART IV IP Application Static Routing 221 RIP 223 Differentiated Services 225 DHCP 233 VRRP 243 ...
Страница 220: ...220 ...
Страница 232: ...Chapter 28 Differentiated Services GS 2750 User s Guide 232 ...
Страница 242: ...Chapter 29 DHCP GS 2750 User s Guide 242 ...
Страница 252: ...Chapter 30 VRRP GS 2750 User s Guide 252 ...
Страница 254: ...254 ...
Страница 278: ...Chapter 32 Access Control GS 2750 User s Guide 278 ...
Страница 280: ...Chapter 33 Diagnostic GS 2750 User s Guide 280 ...
Страница 284: ...Chapter 34 Syslog GS 2750 User s Guide 284 ...
Страница 298: ...Chapter 39 Routing Table GS 2750 User s Guide 298 ...
Страница 301: ...301 PART VI Product Specifications Product Specifications 303 ...
Страница 302: ...302 ...
Страница 309: ...309 PART VII Appendices and Index IP Addresses and Subnetting 311 Legal Information 319 Customer Support 323 Index 329 ...
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Страница 322: ...Appendix B Legal Information GS 2750 User s Guide 322 ...
Страница 328: ...Appendix C Customer Support GS 2750 User s Guide 328 ...