SIP User's Manual 374 Document #: LTRT-68806
Mediant 2000 & TP-1610 & TP-260/UNI
Traffic type tagging can be used to implement Layer 2 VLAN security. By discriminating
traffic into separate and independent domains, the information is preserved within the
VLAN. Incoming packets received from an incorrect VLAN are discarded.
Media traffic type is assigned ‘Premium media’ class of service, Management traffic type is
assigned ‘Bronze’ class of service, and Control traffic type is assigned ‘Premium control’
class of service. For example, RTP/RTCP traffic is assigned the Media VLAN ID and
‘Premium media’ class of service, whereas Web traffic is assigned the Management VLAN
ID and ‘Bronze’ class of service. Each of these parameters can be configured with a
802.1p/q value: traffic type to VLAN ID, and class of service to 802.1p priority.
Notes:
• As a safety measure, the VLAN mechanism is activated only when the
gateway is loaded from the flash memory. Therefore, when using BootP:
Load an ini file with VlanMode set to 1 and SaveConfiguration set to 1.
Then (after the gateway is active) reset the gateway with TFTP disabled
or by using any method except for BootP.
• The gateway must be connected to a VLAN-aware switch, and the
switch’s PVID must be equal to the gateway’s native VLAN ID.
For information on how to configure VLAN parameters, refer to 'Networking Parameters' on
page 273.
For the mapping of an application to its class-of-service and traffic type, refer to the table
below.
Table 8-1: Traffic / Network Types and Priority
Application Traffic / Network Types Class-of-Service (Priority)
Debugging interface Management Bronze
Telnet Management Bronze
DHCP Management Network
Web server (HTTP) Management Bronze
SNMP GET/SET Management Bronze
Web server (HTTPS) Management Bronze
IPSec IKE Determined by the service Determined by the service
RTP traffic Media Premium media
RTCP traffic Media Premium media
T.38 traffic Media Premium media
SIP Control Premium control
SIP over TLS (SIPS) Control Premium control
Syslog Management Bronze
ICMP Management
Determined by the initiator of the
request
ARP listener
Determined by the initiator of the
request
Network
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