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Typical Network Configurations
Data VLAN (CXi - Release 9.0 and later and CXi II)
The CXi/CXi II switch can be assigned a data VLAN to override the default
VLAN 1. By default, all ports on the CXi/CXi II switch belong to VLAN 1.
In addition, VLAN membership can be assigned on a per port basis. Each
port can be assigned as tagged or untagged on the data VLAN as well as
the Voice VLAN. The default is tagged.
VLAN Routing
The installation remains the same as the CX, CX II, MX, and LX because
the CXi, CXi II, MXe and AX rely on external routers to perform VLAN
routing just as the CX, MX, and LX do.
An externally managed L2 switch connected to the AX/CXi/CXi II/MXe
uplink port(s) must tag Voice VLAN traffic unlike the setup for the other
controllers that do not have this requirement.
Figure 129 illustrates VLAN behavior by showing the CXi/CXi II integrated
into a network carrying both voice and data.
In the figure, VLAN 1 is used for non-voice traffic and the Voice VLAN is
used for voice traffic. A VLAN-capable, managed L2 switch is connected
to the CXi/CXi II Gigabit Ethernet Uplink port for expansion purposes. An
external DHCP server is set up to serve VLAN 1 and the CXi/CXi II internal
DHCP server is used to serve the Voice VLAN. Figure 129 shows the
usage of VLANs on the various network segments.
Note:
You can configure the CXi/CXi II/MXe/AX internal DHCP server to
provide DHCP services to both VLAN 1 and the Voice VLAN. In this case,
an external DHCP server would not be required, but the external router in
the corporate network would need to be configured to support routing from
VLAN 1 to the Voice VLAN and DHCP forwarding would have to be enabled
on the router.
Summary of Contents for 3300
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Page 247: ...Appendix A Hardware Reference ...
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Page 279: ...Appendix B Installation Planner ...
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Page 309: ...Appendix C Typical Network Configurations ...
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Page 339: ...Appendix D Status LEDs ...
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Page 379: ...Appendix E FRU Part Numbers ...
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