TP-Link TL-SG3424 User Manual page 40

Function name:
IP Diffserv Classification
Function description:
In the late 1990s, the IETF redefined the meaning of the 8-bit SERVICE TYPE
field to accommodate a set of differentiated services (DS). Under the
differentiated services interpretation, the first six bits comprise a codepoint,
which is sometimes abbreviated DSCP, and the last two bits are left unused.
IP Diffserve Classification function, it can form total 64 (0~63) kinds of Traffic
Class based on the arrangement of 6-bit field in DSCP of the IP packet. In the
switch, user is allowed to set up these 64 kinds of Class that belong to High or
Low Priority.
Parameter description:
IP Differentiated Services (DiffServ) Configuration:
Used for setting up the IP Differentiated Services Configuration QoS.
Diffserv:
Display 64 (0~63) DiffServ Priority items.
Class:
64 kinds of traffic as we mentioned above, user can set up High Priority
or Low Priority for each port respectively.
Fig. 3-23
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User Manual
Publication date: January, 2006
Revision A2
User Manual
3-6. SNMP Configuration
Any Network Management System (NMS) running the Simple Network
Management Protocol (SNMP) can manage the Managed devices equipped with
SNMP agent, provided that the Management Information Base (MIB) is installed
correctly on the managed devices. The SNMP is a protocol that is used to govern
the transfer of information between SNMP manager and agent and traverses the
Object Identity (OID) of the management Information Base (MIB), described in the
form of SMI syntax. SNMP agent is running on the switch to response the request
issued by SNMP manager.
Basically, it is passive except issuing the trap information. The switch
supports a switch to turn on or off the SNMP agent. If you set the field SNMP
"Enable", SNMP agent will be started up. All supported MIB OIDs, including RMON
MIB, can be accessed via SNMP manager. If the field SNMP is set "Disable", SNMP
agent will be de-activated, the related Community Name, Trap Host IP Address,
Trap and all MIB counters will be ignored.
Function name:
SNMP Configuration
Function description:
This function is used to configure SNMP settings, community name, trap host
and public traps as well as the throttle of SNMP. A SNMP manager must pass the
authentication by identifying both community names, then it can access the MIB
information of the target device. So, both parties must have the same community
name. Once completing the setting, click <Apply> button, the setting takes effect.
Parameters description:
SNMP:
The term SNMP here is used for the activation or de-activation of SNMP.
Default is Enable.
Get/Set/Trap Community:
Community name is used as password for authenticating if the
requesting network management unit belongs to the same community
group. If they both don't have the same community name, they don't
belong to the same group. Hence, the requesting network management
unit can not access the device with different community name via SNMP
protocol; If they both have the same community name, they can talk each
other.
Community name is user-definable with a maximum length of 15
characters and is case sensitive. There is not allowed to put any blank in
the community name string. Any printable character is allowable.
The community name for each function works independently. Each
function has its own community name. Say, the community name for
GET only works for GET function and can't be applied to other function
such as SET and Trap.
Publication date: January, 2006
Revision A2
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