Polycom CX5500, Administrator'S Manual

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Polycom CX5500 Unified Conference Station Administrator’s Guide
1.1.0
Polycom, Inc. 25
Digest Authentication for Microsoft Internet Information Services
If you want to use digest authentication against the Microsoft Internet Information Services server:
Use Microsoft Internet Information Server 6.0 or later.
Digest authentication needs the user name and password to be saved in reversible encryption.
The user account on the server must have administrative privileges.
The wildcard must be set as MIME type; otherwise, the phone will not download *.cfg, *.ld and other required
files. This is because the Microsoft Internet Information Server cannot recognize these extensions and will
return a “File not found” error. To configure wildcard for MIME type, see IIS 6.0 does not serve unknown MIME
types.
For more information, see Digest Authentication in IIS 6.0 on Microsoft TechNet .
Establish Link Connectivity
Wired devices will establish a connection to the LAN. If you want to change the phone’s configuration, do
so prior to connecting the devices.
Wired Devices
Typical network equipment supports one of the three following Ethernet line rates: 10Mbps, 100Mbps,
and 1000Mbps. The phones are configured to automatically negotiate the Ethernet rate so that no special
configuration is required. You do have the option to change the line rates and/or duplex configuration.
Polycom recommends that you keep the default settings. If you do change the settings, you should do so
before deploying the phones.
Security and Quality of Service Settings
You have the option of using several layer-2 mechanisms that increase network security and minimize
audio latency. This section describes each of the network security options.
VLANs and Wired Devices
A Virtual LAN (VLAN) can be used to separate and assign higher priority to a voice VLAN as a way of
minimizing latency.
There are several methods in which the phone can be configured to work on a particular VLAN:
●
LLDP Link Layer Discovery Protocol (LLDP) is a vendor-neutral Layer 2 protocol that allows a
network device to advertise its identity and capabilities on the local network. To change these
parameters, go to VLAN Menu.
●
CDP Compatible Cisco Discovery Protocol (CDP) is a proprietary Data Link Layer network
protocol. CDP Compatible follows the same set of rules. To change this parameter, go to VLAN
Menu.