Engineering Guidelines
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ports that need to convey multiple VLANs/802.1p priorities must use tagging. This includes
ports used between LAN switches and ports connected to dual-port phones.
With dual-port phones, it is important to configure the LAN switch to use tagging for the voice
VLAN and no tagging for the default VLAN, to ensure that voice packets are properly prioritized
over data applications from the PC.
There is potential in the VLAN specification to interpret the standard, with respect to VLAN 0,
in different ways. This can lead to incompatibility between different vendor units. Do not use
VLAN 0.
The main requirements are
•
Ports should be configurable to provide VLAN tagging to incoming untagged information
and remove this tagging when passing out of the switch. This is used by the controller and
associated applications.
•
Ports should be configurable to pass all active VLANs with tagging from one switch to
another (there is no untagged information present in the connection). This is used between
LAN switches and maintains priority information between units.
•
Ports should be configurable to accept untagged information, to pass this on to a specified
VLAN, as well as to accept tagged information. On egress, the port strips off tagging for
data from a specific VLAN, but does not strip data from other VLANs. This is used when
connecting the dual-port phones and PCs to the network, so that tagged data goes to the
phone and untagged data to the PC.
Some other VLAN guidelines for use with voice are:
•
Additional bandwidth is always good.
•
Use full duplex wherever possible.
•
Do not use VLAN 0.
•
Set Priority to value 6 for voice. (Value of 5 used in Cisco networks)
•
Set Priority to value 3 for signalling. (Value of 3 used in Cisco networks)
•
Use VLAN 1 to 999 with Cisco products. VLANS can be extended from 1000 upwards. Care
in selection should be exercised in this case as some VLANs are already reserved for other
network usage.
•
Set Priority for untagged VLAN/native VLAN/default_vlan to 0.
Содержание MiVOICE BUSINESS
Страница 1: ...Mitel MiVoice Business RELEASE 7 2 ENGINEERING GUIDELINES ...
Страница 15: ...Chapter 1 ABOUT THIS DOCUMENT ...
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Страница 22: ...Engineering Guidelines 8 ...
Страница 23: ...Chapter 2 SYSTEM OVERVIEW ...
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Страница 28: ...Engineering Guidelines 14 ...
Страница 29: ...Chapter 3 TYPICAL CONFIGURATIONS ...
Страница 30: ......
Страница 73: ...Chapter 4 PHONES AND VOICE APPLICATIONS ...
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Страница 95: ...Phones and Voice Applications 81 Figure 9 ICP Connection Paths and Limitations ...
Страница 100: ...Engineering Guidelines 86 ...
Страница 101: ...Chapter 5 POWER ...
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Страница 128: ...Engineering Guidelines 114 ...
Страница 129: ...Chapter 6 PERFORMANCE ...
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Страница 135: ...Chapter 7 APPLICATIONS ...
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Страница 142: ...Engineering Guidelines 128 ...
Страница 143: ...Chapter 8 EMERGENCY SERVICES ...
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Страница 151: ...Chapter 9 IP NETWORKING ...
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Страница 167: ...Chapter 10 LICENSING ...
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Страница 183: ...Chapter 11 BANDWIDTH CODECS AND COMPRESSION ...
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Страница 209: ...Chapter 12 NETWORK CONFIGURATION CONCEPTS ...
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Страница 244: ...Engineering Guidelines 230 ...
Страница 245: ...Chapter 13 NETWORK CONFIGURATION SPECIFICS ...
Страница 246: ......
Страница 309: ...Appendix A CAT 3 WIRING ...
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Страница 315: ...CAT 3 Wiring 301 Figure 55 CX MX MXe AX and LX Minimum Cable Standard ...
Страница 316: ...Engineering Guidelines 302 ...
Страница 317: ...Appendix B INSTALLATION EXAMPLES ...
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Страница 335: ...Appendix C LLDP AND LLDP MED CONFIGURATION EXAMPLES ...
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Страница 347: ...Appendix D VOIP AND VLANS ...
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Страница 353: ...Appendix E VOIP SECURITY ...
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