Setting up the Interfaces of the Services Ready Platforms
Setting up the WAN Interface
Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models)
27
4
STEP 5
To configure an Ethernet subinterface, click the
Edit
(pencil) icon next to the WAN
interface. Enter the settings as described in
Adding a Subinterface, page 29
.
STEP 6
Select the default route for the interface you are configuring. The default route for
voice is Default Voice Route.
VC Settings
Field
Description
Multiplexing
Defines the way in which different protocols are
handled within a DSL virtual circuit. You an choose
between Logical Link Control (LLC) encapsulation (also
called LLC-SNAP) or Virtual Channel (VC) multiplexing
(also called VC-Mux).
QoS Type
Select the DSL Quality of Service (QoS) method that
your ISP uses on your line: Unspecified Bit Rate (UBR),
Constant Bit Rate (CBR), Real-Time Variable Bit Rate
(RTVBR), or Non-Real-Time Variable Bit Rate (NRTVBR).
CBR provides the best guarantee of low latency; UBR
provides none, but is typically used for most broadband
data services.
•
Pcr Rate
—When QoS is set to CBR, VBR_RT, or VBR_NRT,
enter the Peak Cell Rate (PCR) in cells per second.
•
Scr Rate
—When QoS is set to VBR_NRT or VBR_RT, enter
the Sustained Cell Rate (SCR) in cells per second.
•
MBS
—When QoS is set to VBR_NRT or VBR_RT, enter the
MBS in cells per second.
•
CDVT
—When QoS is set to CBR, VBR_NRT or VBR_RT,
enter the CDVT in cells per second.
VPI/VCI Auto Detect
Use to enable or disable automatic detection of the VPI
and VCI values that identify your line to the ATM
network. The Virtual Path Identifier (VPI) and Virtual
Channel Identifier (VCI) are values used to identify your
line to your ISP's ATM network. The SRP will
automatically detect DSL services offered on the
following VC pairs: 1/32, 0/38, 0/35, 8/35, 0/43, 0/51,
0/59, 8/43, 8/51, 8/5.