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i2050QosSvc.exe

i2050QosSvc.exe provides QoS tagging to outgoing 2050 IP packets.

When the IP Softphone 2050 application opens a socket, the i2050QosSvc

software monitors traffic destined for the specified IP address and port.

i2050QosSvc software sets DiffServ QoS priority bits.

802.1 p priority bits in the 802.1Q header can be set. 802.1Q headers

must be enabled by the Network Interface Card (NIC) or NIC driver.

The i2050QosSvc does not fill in other fields in the 802.1Q header (for

example, no values are assigned to the VLAN ID field).

ATTENTION

VLAN ID

The default VLAN ID value in Windows is 0. This can be overwritten for Network

Interface Cards (NIC) that support 802,1Q. The 2050 processes do not assign

values to the VLAN ID field. This setting is documented with the NIC or the NIC

driver.

The VLAN ID for an application must match the VLAN ID for the PC because the

PC has only one IP stack for each NIC. A second IP stack is required to assign

a specific VLAN ID tag for an application which is different than the PC tag.

You can use two different IP cards, each with different VLAN ID values on a

single PC; however, this can cause security gaps on the voice VLAN, which is

normally a more secure network than the data LAN.

DiffSERV (DSCP)

The IP Softphone 2050 uses DSCP settings assigned by the TPS. The

IP Softphone 2050 supports DSCP on Windows 2000 Professional and

Windows XP. For information about configuring DiffServ values, see IP

Line Fundamentals (NN43100-500).

802.1p

For information about configuring 802.1p values, see IP Line

Fundamentals (NN43100-500).

Ethereal traces

Current versions of Ethereal show 802.1Q headers, if they are present.

802.1Q must be enabled on the NIC for the headers, which includes

802.1p to be captured.

GXAS

The IP Softphone 2050 supports GXAS, which enables the user to start

applications that are available on the GXAS server. You must manually

configure the CSV file on the GXAS server to support the IP Softphone

2050. For more information, see Nortel Application Gateway 1000/2000

Administration Guide (NN42360-600).

Nortel Communication Server 1000

IP Phones Fundamentals

NN43001-368 02.07

5 February 2009