Network Configuration Specifics
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When it is desired to use separate voice and signalling priorities, Mitel recommends the
following:
•
Voice DSCP 46, 802.1p '6'
•
Signalling DSCP 26, 802.1p '3'
•
Other DSCP 0, 802.1p ‘0’
The new Cisco LAN Policy defaults pre-defined in AutoQoS are:
•
Voice DSCP 46, 802.1p '5'
•
Signalling DSCP 24, 802.1p '3'
•
Other DSCP 0, 802.1p ‘0’
The legacy Cisco LAN policy settings are:
•
Voice DSCP 46, 802.1p '5'
•
Signalling DSCP 26, 802.1p '3'
•
Other DSCP 0, 802.1p ‘0’
DSCP SETTINGS FOR CALL SIGNALLING IN CISCO ENVIRONMENTS
Cisco has supported DSCP 26 (PHB AF31) and more recently DSCP 24 (PHB CS3) for call
signalling. As a result, Cisco has "recommended that both AF31 and CS3 be reserved for call
signalling". It is therefore advised to determine whether both or which one of these settings is
supported throughout the network before setting the signalling DSCP value for call signalling
at installation, e.g. through DHCP settings. Ideally both AF31 (26) and CS3 (24) should be
assigned to the same priority queue.
DHCP AND IP PHONE NETWORK POLICY
When the IP phone uses the DHCP method to obtain VLAN and priority information, it will do
sequential fetches on the default (untagged) VLAN and the tagged VLAN. This will double the
retrieval of information depending on the way information is entered. It is important that the
DHCP servers for the voice and data VLANs each have the same VLAN and priority information.
Also, the ability to provide partial information at each stage allows these three methods to be
used together to ease installation. This sequence works with either multiple DHCP servers,
one on each VLAN, or the router/Layer 3 switch connecting the VLANs has DHCP forwarding
capability
(also known as DHCP Relay, or IP Helper on certain vendor equipment).
We recommend using the internal 3300 ICP TFTP server. An external TFTP server can be
used but then it is important to ensure that the downloads maintain version control with upgrades
that are applied to the ICP, using the most recent software versions available. In a multiple-ICP
installation with multiple versions, this can become network management overhead.
One of the options that the IP phone obtains is the RTC (Real Time Complex and call control)
address of a 3300 ICP. Since the address in this DHCP option is not dynamic, this address
must be pre-assigned statically within the ICP before it is connected to the network.
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 ...
Страница 24: ......
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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