Avaya 4600 - Manual (Page 39)

Issue 2 July 2006 39
NVVPNCOPYTOS
2 This parameter contains whether
TOS bits should be copied from
the inner header to the outer
header, or not copied at all.
Values are:
1=YES
2= NO
Description:
If the value is 1, TOS bits are
copied. By default, TOS bits are
not copied from the inner header
to the outer header. Some
Internet Service Provider do not
route the IP packets properly if
TOS bits are set to anything other
than 0.
To set the copy TOS value to 1,
use the following command:
SET NVVPNCOPYTOS 1
Avaya recommends that this value
is not changed when the
telephone phone is downloading
the script over the VPN tunnel.
This recommendation avoids
overriding end-user settings that
can occur due to ISP specific
issues.
For example you can set this
value to 1 while provisioning the
telephone with the VPNremote
Phone software so that the
telephone can take advantage of
the QOS service provided by the
home router. However, if the
telephone's ISP does not properly
handle the packets with non-zero
TOS bits in IP header, the
telephone user needs to change
this value back to 2.
Due to specific ISP limitations,
Avaya recommends that the
user's choice are not overwritten
each time the script file is
downloaded.
To set the copy TOS value to 1
when the script file is not
downloaded over the VPN, use
the following command:
IF $VPNACTIVE SEQ 1 goto
skipcopytos
SET NVVPNCOPYTOS 1 #
skipcopytos
Table 5: VPNremote for 4600 Series IP Telephones Customizable System
Parameters (continued)
Parameter Name Default
Value Description and Value Range Example
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