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ATM Configuration Reference
Foreground Channel Control Parameters (ATM SETUP #2)
Foreground Channel Control Parameters
(ATM SETUP #2)
The ATM Foreground Channel Control is accessed by pressing
CONFIG-right after configuring the Global Setup screen.
When Traffic Shaping is set to Off (see Traffic Shaping, page 19–4),
the display appears as follows:
<ATM SETUP #2: Fgnd Channel Control>
BW>100%
Type>AAL0
Distribution>Continuous
Cells Per Burst>100
Period>0.0 Sec
OAM:Enable>Off Type>F5
>AIS
>End
>>>Press ACTION to send Single Burst<<<
When Traffic Shaping is set to Basic, the display appears as
follows:
<ATM SETUP #2: Fgnd Channel Control>
PCR>100%
SCR>010%
MBS>0100
Service Type>CBR
AAL Type>AAL1
Distribution>Continuous Period>0.1 Secs
OAM:Enable>Off Type>F5
>AIS
>End
>>>Press ACTION to send Single Burst<<<
Foreground
Channel
Bandwidth
BW>: sets the bandwidth used by the transmit foreground channel and
can be set from 000% through 100% in increments of either 10% or 2%
(5% for STS-12c, see page 19–23). See Bandwidth Step Size, page 19–4.
This field is available when 10% or 2% is selected for BW Step Size,
and when traffic shaping is off.
ATM
Line Increment: This field adjusts the selected “Line Rate”
bandwidth. The bandwidth can be adjusted up or down by about
3 percent in 10 steps (–5 through +5) or set to Nominal (no
adjustment). This field is only available when BW Step Size is set to a
Line Rate selection. See Bandwidth Step Size, page 19–4.
Note: Bandwidth that is not assigned to the foreground channel is used by the
background channels or idle cells. Foreground cells are interleaved with the
idle or background cells to achieve the specified bandwidth (see ATM
Foreground Cell Interleaving, page 19–10).
19–6
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