Microsoft Lync Server 2010 Software and Hardware Requirements

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Microsoft Lync Server 2010 communications software has the following software and hardware requirements for servers and clients.

Servers Are 64-Bit Only

Lync Server 2010 is available only in 64-bit, which requires 64-bit hardware and 64-bit editions of Windows Server. Servers running any Lync Server 2010 server role must run a 64-bit edition operating system.

Operating System Requirements for Servers Running Lync Server 2010

Servers running any of the following Lync Server 2010 server roles must run a 64-bit edition operating system:

  • Standard Edition server
  • Front End Server
  • Edge Server
  • A/V Conferencing Server
  • Mediation Server
  • Monitoring Server
  • Archiving Server

Each server must run a 64-bit edition of the following operating systems:

  • The Windows Server 2008 R2 Standard operating system
  • The Windows Server 2008 R2 Enterprise operating system
  • The Windows Server 2008 Standard operating system with Service Pack 2 (SP2)
  • The Windows Server 2008 Enterprise operating system with SP2

Hardware Support for Servers Running Lync Server 2010

The following table describes the recommended minimum hardware for all servers where you plan to install Lync Server 2010.

Hardware Recommendations for Servers Running Lync Server 2010

Hardware component

Minimum requirement

CPU

One of the following:

·      64-bit dual processor, quad-core, 2.0 gigahertz (GHz) or higher

·      64-bit 4-way processor, dual-core, 2.0 GHz or higher

Memory

16 gigabytes (GB) recommended

Disk

Local storage with at least 72 GB free disk space on a 10,000 RPM disk drive

Network

2 network adapters, each 1 gigabits per second (Gbps)

Database Server Requirements

In addition to these server roles, a Lync Server deployment also includes database servers. These include a back-end database, an archiving database, and a monitoring database. For these databases, the following software is supported:

  • The 64-bit edition of Microsoft SQL Server 2008 with SP1 Enterprise database software
  • The 64-bit edition of Microsoft SQL Server 2008 Express (for Standard Edition server only; it is automatically installed by Lync Server 2010 on each Standard Edition server)
  • Microsoft SQL Server 2005 Enterprise Edition with Service Pack 3 (SP3) or the 64-bit edition of SQL Server 2005 Standard Edition with SP3

Hardware Support for Database Servers

The following table describes the recommended minimum hardware for database servers in a Lync Server Enterprise Edition deployment. Although they host their own Lync Server database, Standard Edition servers use the hardware recommendations in the “Hardware Recommendations for Servers Running Lync Server 2010” Table.

These recommendations apply to servers hosting back-end databases, Monitoring Server databases, and Archiving Server databases.

Hardware Recommendations for Back End Servers and Other Database Servers

Hardware component

Minimum requirement

CPU

One of the following:

·      64-bit dual processor, quad-core, 2.0 GHz or higher

·      64-bit 4-way processor, dual-core, 2.0 GHz or higher

Memory

32 GB recommended for back-end server (with or without collocated Archiving and Monitoring databases), 16 GB recommended for Archiving and Monitoring database (not collocated with the Back End Server)

Disk

Local storage with at least 72 GB free disk space on a 10,000 RPM disk drive

Network

2 network adapters, 1 Gbps each

Client Software Requirements

This section summarizes the software support for the following Lync Server 2010 clients:

  • Microsoft Lync 2010
  • Online Meeting Add-in for Microsoft Lync 2010
  • Microsoft Lync 2010 Attendee
  • Microsoft Lync 2010 Attendant

Operating Systems Requirements

Supported operating systems for these clients include the following:

  • Windows 7
  • Windows Vista
  • Windows XP Professional with Service Pack 3 (SP3)

Other Software Requirements

  • Browsers   Lync Web App supports specific combinations of operating systems and browsers. The following table lists the various combinations.
  • Browser and Operating System Combinations for Microsoft Lync 2010, Online Meeting Add-in for Microsoft Lync 2010, and Microsoft Lync 2010 Attendee

Operating System

Internet Explorer 8

Internet Explorer 7

Internet Explorer 6

Firefox 3.X

Safari 5.X

Safari 4.X

Windows 7 (32-bit and 64-bit)

Yes

Yes

Yes

Windows Vista SP2 (32-bit and 64-bit)

Yes

Yes

Yes

Windows XP SP3 (32-bit)

 

Yes

Yes

Yes

Yes

Windows XP SP2 (64-bit)

 

Yes

Yes

Yes

Yes

Windows Server 2008 R2

 

Yes

Yes

Windows Server 2003 (except IA-64)

 

Yes

Yes

Yes

Windows Server 2000 SP4

Yes

Yes

Mac OS 10.4.8+ (Intel-based)

 

Yes

Yes

Yes

  • Microsoft Silverlight   Microsoft Silverlight browser plug-in version 4.0 is required for Lync 2010, the Online Meeting Add-in for Lync 2010, and Lync Web App.
  • Microsoft .NET Framework 3.5   To install Lync 2010 Attendant, the Microsoft .NET Framework 3.5 must already be installed. You can install the Microsoft .NET Framework 3.5 from http://go.microsoft.com/fwlink/?LinkId=122406.
  • Microsoft Office   Lync Server 2010 clients support integration with various versions of Microsoft Office:
    • The Microsoft Outlook 2010 messaging and collaboration client and Microsoft Exchange Server 2010 are required for the full set of new Outlook integration features in Lync 2010.
    • Certain Lync 2010 integration features are supported on Microsoft Office 2007 and Microsoft Office 2003 Service Pack 3 (SP3). For integration with Office 2007 to work correctly, you may have to install an update to Outlook 2007. For details about the Outlook update, see Microsoft Knowledge Base article 936864, «Description of the 2007 Office hotfix package» at http://go.microsoft.com/fwlink/?LinkID=143112.
    • The Online Meeting Add-in for Lync 2010 is supported with Microsoft Office 2003, Microsoft Office 2007, and Microsoft Office 2010.

Hardware Support for Lync Server 2010 Clients

This section describes the recommended hardware for Lync Server 2010 clients.

Recommended Hardware for Microsoft Lync 2010, Online Meeting Add-in for Microsoft Lync 2010, and Microsoft Lync 2010 Attendee

Hardware component

Minimum requirement

CPU

Intel Pentium 4, AMD Athlon 64, or equivalent

Data and voice: 1.6 gigahertz (GHz) or higher processor, 2 GHz 32-bit or 64-bit processor (recommended)

For video: Dual Core 1.9 GHz processor or higher for VGA, Quad Core 2.0 GHz or higher for high definition

For the Microsoft RoundTable conferencing device: 2 GHz processor or higher

Memory

On Windows XP: 1 gigabyte (GB) of RAM

On Windows Vista or Windows 7: 2 GB of RAM

Display resolution

1024×768 required

Graphics hardware

·         Support for Microsoft DirectX 9.0 application programming interface (API)

·         128 MB of graphics memory (minimum)

·         Windows Display Driver Model driver

·         Pixel Shader 2.0 in hardware

·         32 bits per pixel

Telephony

Microphone and speakers, headset with microphone, or equivalent device

Recommended: Microsoft unified communications (UC) device, or a phone running Microsoft Lync 2010 Phone Edition

Video source

USB 2.0 video camera or RoundTable device

Network

Voice:

·         Peer-to-peer: 40 kbps (minimum); 60 kbps (typical); 90 kbps (maximum)

·         Conferencing: 40 kbps (minimum); 95 kbps (typical); 160 kbps (maximum)

·         Media bypass: 80 kbps (minimum); 95 kbps (typical); 160 kbps (maximum)

Video:

·         CIF: 50 kbps (minimum); 210 kbps (typical); 250 kbps (maximum)

·         VGA: 350 kbps (minimum); 500 kbps (typical); 600 kbps (maximum)

·         High definition: 800 kbps (minimum); 1.2 Mbps (typical); 1.5 Mbps (maximum)

·         RoundTable device: 50 kbps (minimum); 280 kbps (typical); 350 kbps (maximum)

Data:

·         Web conferencing (PSOM): 20 kbps (minimum); 200 kbps (typical); 500 kbps (maximum)

·         File Transfer: 20 kbps (minimum); 200 kbps (typical); 200 kbps (maximum)

·         Application Sharing: 256 kbps (minimum); 1 Mbps  (typical); 3.5 Mbps (maximum)

Typical bandwidth values are measurements of typical activity levels under good network conditions (for example, with no forward error correction, or FEC). This value can be used for capacity planning to assess if a network is provisioned appropriately. The values are cumulative. For example, for a conference call with audio, Common Intermediate Format (CIF) video, and panoramic video, an appropriately provisioned network would provide a bandwidth speed of 585 Kbps (95+210+280=585 Kbps).

Recommended Hardware for Microsoft Lync 2010 Attendant

Hardware component

Minimum requirement

CPU

Intel Pentium 4, AMD Athlon 64, or equivalent

Data and voice: 1 GHz or larger processor. Support for 32-bit and 64-bit

For the Microsoft RoundTable conferencing device: 2 GHz processor or higher

Memory

On Windows XP: 1 GB of RAM

On Windows Vista or Windows 7: 2 GB of RAM

Display resolution

Required: Super VGA 1024 x 768

Recommended: Super VGA 1280 x 1024 or higher

Hard drive

At least 100 MB free

Telephony

Microphone and speakers, headset with microphone, or equivalent device.

Recommended: Microsoft UC device, or a phone running Microsoft Lync 2010 Phone Edition

Bandwidth requirements

Voice: 50 kbps (minimum); 80 kbps (high-quality)

RoundTable device (for audio): 50 kbps (minimum); 350 kbps (high-quality)

Required Lync Server 2010 Components for Devices

Before you deploy UC phones, ensure that the following required Lync Server 2010 components are in place.

Web Services

The Device Update service, which is an automated way to update your IP phones, is installed with Web Services, on the Front End Server.

Enterprise Voice

Enterprise Voice is the voice over IP (VoIP) solution in Lync Server 2010 that allows users to make calls and use rich communication and collaboration features, such as viewing enhanced presence information or location information for contacts in your organization’s address book.

Contact Objects

(Applies to Common area phones and analog devices only) Phones that are not associated with a specific user must be associated with an Active Directory contact object. Like user accounts, contact objects can be assigned policies and voice plans, thereby giving you a way to manage the device.

Dial Plans, Voice Polices, and Outbound Call Routes

Dial plans, voice polices, and call routes must be set up for users. Dial plans are named sets of normalization rules that translate phone numbers for a named location, individual user, or contact object into a single standard (E.164) format, allowing UC device users to make calls to the public switched telephone network (PSTN). Voice policies are records that define call permissions for users, sites, or an entire organization and include various calling features that may be enabled or disabled as appropriate. Voice policies must be set up for device users. Call routes are rules that specify how Lync Server 2010 handles outbound calls from UC devices.

PIN Authentication and Policy

If you’re deploying phones from the new line of IP phones, you must enable personal identification number (PIN) authentication on Lync Server, and an appropriate PIN policy need to be in place. This allows authentication to be automatic when a user signs in on an Aastra 6721ip, Polycom CX600, Polycom CX500, or Polycom CX3000 phone.

Hardware Support for Lync Server 2010 Devices

IP phones running Microsoft Lync 2010 Phone Edition support Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) and Power over Ethernet (PoE). To take advantage of LLDP-MED, the switch must support IEEE802.1AB and ANSI/TIA-1057. To take advantage of PoE, the switch must support PoE802.3AF or 802.3at.

To enable LLDP-MED, the administrator must enable LLDP by using the switch console window and set the LLDP-MED network policy with the correct voice VLAN ID.

In addition, if your deployment includes analog devices, you must configure the analog gateway to use Microsoft Lync Server 2010, and the gateway must be one of the following:

·         An analog telephone adapter (ATA)

  • A SIP-PSTN analog gateway
  • A Survivable Branch Appliance that includes a SIP-PSTN analog gateway
  • A Survivable Branch Appliance that includes a SIP-PSTN gateway that communicates with an ATA

Port Requirements

IP phones use port 443 for the Device Update service.

DNS Requirements

The following table lists the required DNS records for IP Phones.

DNS Records for External Devices

Type

Value

Note

A

Fully qualified domain names (FQDNs) for the pool(s) hosting the Enhanced Registrars

The new Lync Server 2010 DNS load balancing feature requires you to specify the server FQDN and the pool FQDN, using the same IP address, for each server in the pool and to create A records for all pools that contain an Enhanced Registrar. For example: RegistrarServerOneInPool.<SIP domain>: 1.2.3.4, RegistrarPool.<SIP domain>: 1.2.3.4, RegistrarServerTwoInPool.<SIP domain>: 1.2.3.5, and RegistrarPool.<SIP domain>: 1.2. 3.5.

If you are using hardware load balancing, just specify A records for each pool that contains an Enhanced Registrar. Allows external devices to connect by using SIP over TLS to the Enhanced Registrar internally.

SSRV

_sipinternal._tcp.<SIP domain>

_sipinternaltls._tcp.<SIP domain>

Specifies the two SIP FQDNs for internal routing, one for communications over TCP, and one for TCP communications secured by TLS.

A

ucupdates-r2.<SIP domain>

Specifies the Web Services portion of the Device Update services URL. The device appends “:443/RequestHandler/ucdevice.upx”. Make sure the HLB translates external requests to use “:443/RequestHandler/ucdevice.upx.” (The external port is 443.)

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