Cisco SRP521W-K9-G1 Administration Guide - Page 27

Setting up the Interfaces of the Services Ready Platforms Setting up the WAN Interface 4 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. 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. Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models) 27