1531-DBC 422 02 Uen B3 2013-12-02
42
I
NSTALLATION
} else if substring (option vendor-class-identifier,
0, 17) = "Ericsson IP-Phone" {
option vendor-encapsulated-options
"\x11Ericsson IP-Phone
\x01\x0b192.168.0.1\x04\x16aastradomain.aastra.se\x0
5\x03452";
}
#
# DHCP settings continued
Example when using Vendor Class and the IP address for the sw-server
is 192.168.0.1, the telephony domain is
aastradomain.aastra.se
and the
VLAN identity is 452.
7.12 Diffserv
Diffserv is a model for handling of priority, based on the type of service
(TOS) field in the IP packet heading. For the definition of Diffserv 54 Diff-
serv octet on page 42
Figure 54:Diffserv octet
The default value for
voice packets
is Expedited Forwarding (EF) which
is 101110 (bit 0-5).
The default value for the
signalling packets
is for Traffic class = Class B
and Drop precedence = Medium drop precedence (010100 bit 0-5).
It is possible to change the values for Diffserv in the phone via the config-
uration file, see the description for
CONFIGURATION FILE FOR DBC
42X
.
