Netgear RT211 사용자 설명서
Reference Guide for the Model RT210/RT211 ISDN Routers
Configuring the Router
3-15
When you set the MinBandwidth parameter to a multiple of 64,000 bps, ISDN calls are made as
soon as the path is set up and until the bandwidth requirement is met.
soon as the path is set up and until the bandwidth requirement is met.
The DemandThreshold parameter specifies the percentage of current path usage when an
additional demand call must be made. To prevent calls from being made for short bursts of traffic,
the percentage must be met for the period specified by ThresholdPd (Threshold Period).
additional demand call must be made. To prevent calls from being made for short bursts of traffic,
the percentage must be met for the period specified by ThresholdPd (Threshold Period).
For Bandwidth on Demand, the IdleThreshold parameter specifies the percentage of usage below
which a demand call should be closed. The IdleThreshold must be met for the ThresholdPd.
Because of the packet splitting feature of the NETGEAR Model RT210 and Model RT211 ISDN
routers, there is always a small amount of data sent on the additional channel while data is being
sent on the original channel. To allow the path to fall back to only one channel, an IdleThreshold
value should be entered at which the channel is classed as unused. The original call is closed only
when no real data has been sent or received for the ThresholdPd.
which a demand call should be closed. The IdleThreshold must be met for the ThresholdPd.
Because of the packet splitting feature of the NETGEAR Model RT210 and Model RT211 ISDN
routers, there is always a small amount of data sent on the additional channel while data is being
sent on the original channel. To allow the path to fall back to only one channel, an IdleThreshold
value should be entered at which the channel is classed as unused. The original call is closed only
when no real data has been sent or received for the ThresholdPd.
You can configure MaxBandwidth in multiples of 64,000 bps. However, setting MaxBandwidth to
64,000 bps limits the path to only of the two ISDN ports.
64,000 bps limits the path to only of the two ISDN ports.
If possible, these parameters should be set at one end only to avoid call collisions if both ends of
the path try to make calls at the same time.
the path try to make calls at the same time.
Subaddressing and Multiple Subscriber Numbering (MSN)
If your NETGEAR Model RT210 ISDN router shares an ISDN line with other ISDN devices, the
router must identify where the incoming calls belong. Subaddressing and MSN are the two
methods for doing this and must be enabled by your ISDN provider. All ports must be configured
with the same values or the ports might answer calls that are not intended for the router.
router must identify where the incoming calls belong. Subaddressing and MSN are the two
methods for doing this and must be enabled by your ISDN provider. All ports must be configured
with the same values or the ports might answer calls that are not intended for the router.
The subaddress appears as a suffix to an incoming ISDN number. In order for the router to
recognize the subaddress, it must be configured in the ISDN PORT form. The subaddress is
usually a single digit. Many ISDN providers prefix the subaddress with a zero. Check with your
supplier and enter the value in the correct format in the subaddress configuration field.
recognize the subaddress, it must be configured in the ISDN PORT form. The subaddress is
usually a single digit. Many ISDN providers prefix the subaddress with a zero. Check with your
supplier and enter the value in the correct format in the subaddress configuration field.
If the router has no subaddress configured, it answers any incoming subaddressed call. To make a
call to a router that has a subaddress configured, use the ISDN number followed by the * symbol
and the subaddress number. Do not include any extra digits that the ISDN service adds to the
subaddress.
call to a router that has a subaddress configured, use the ISDN number followed by the * symbol
and the subaddress number. Do not include any extra digits that the ISDN service adds to the
subaddress.
NGRRT210.BK Page 15 Friday, October 17, 1997 2:37 PM