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Sitecom ADSL2+ Modem DC-227
46
required if the source port or destination port has been entered.
Source Port
The source port of the selected protocol. You cannot configure this field
without entering the protocol first.
Destination Port
The destination port of the selected protocol. You cannot configure this
field without entering the protocol first.
Physical Port
The incoming ports. The selections include LAN ports, wireless port, and
the blank for not applicable.
Field
Description
Outbound Priority
The priority level for the traffic that matches this classification rule. The
possible selections are (in the descending priority): p0, p1, p2, p3.
IP Precedence
Select this field to mark the IP precedence bits in the packet that match
this classification rule.
IP Type of Service
Select this field to mark the IP TOS bits in the packet that match this
classification rule.
802.1p
Select this field to mark the 3-bit user-priority field in the 802.1p
header of the packet that match this classification rule. Note that this
802.1p marking is workable on a given PVC channel only if the VLAN tag
is enabled in this PVC channel.
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47
8.5 Misc
On this page, you can change IP passthrough settings.
When the
IP Passthrough
option is enabled, only one PC is able to access
the Internet, and the DHCP server will duplicate the WAN IP address from the ISP to the
local client PC. Only the PC with the WAN IP address can access the Internet. This option is
sometimes also called “PPP Half-Bridge”.
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Sitecom ADSL2+ Modem DC-227
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8.6 ADSL Set
The ADSL setting page allows you to select any combination of DSL training
modes.
Field
Description
ADSL modulation
Choose prefered xdsl standard protocols.
G.lite : G.992.2 Annex A
G.dmt : G.992.1 Annex A
T1.413 : T1.413 issue #2
ADSL2 : G.992.3 Annex A
ADSL2+ : G.992.5 Annex A
AnnexL Option
Enable/Disable ADSL2/ADSL2+ Annex L capability.
AnnexM Option
Enable/Disable ADSL2/ADSL2+ Annex M capability.
ADSL Capability
“Bitswap Enable” : Enable/Disable bitswap capability.
“SRA Enable” : Enable/Disable SRA (seamless rate adaptation)
capability.
Tone Mask
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49
Choose tones to be masked. Mased tones will not carry any data.
Apply Changes
Click to save the setting to the configuration and the modem will be retrained.
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Sitecom ADSL2+ Modem DC-227
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8.7 ADSL ATM
The page is for ATM PVC QoS parameters setting. The DSL device support 4 QoS
mode —CBR/rt-VBR/nrt-VBR/UBR.
Field
Description
VPI
Virtual Path Identifier. This is read-only field and is selected on the
Select
column in the Current ATM VC Table.
VCI
Virtual Channel Identifier. This is read-only field and is selected on the
Select
column in the Current ATM VC Table. The VCI, together with VPI,
is used to identify the next destination of a cell as it passes through to
the ATM switch.
QoS
Quality of Server, a characteristic of data transmission that measures
how accurately and how quickly a message or data is transferred from a
source host to a destination host over a network. The four QoS options
are:
-
UBR (Unspecified Bit Rate): When UBR is selected, the
SCR and MBS fields are disabled.
-
CBR (Constant Bit Rate): When CBR is selected, the SCR
and MBS fields are disabled.
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