The MIB module to configure the Frame Relay
connection configuration.
Terminologies Used:
SIW - Frame-Relay-to ATM Service Interworking.
In SIW, the ATM port connected to a frame
relay port does not need to be aware that
it is connected to an interworking function.
This is explained in document FRF.8.
NIW - Frame-Relay-to ATM Network Interworking.
In NIW, the ATM port connected to a frame
relay port does need to be aware that
it is connected to an interworking function.
PVC - Permanent Virtual Circuit OR
Permanent Virtual Connection
A frame relay logical link, whose endpoints
and class of service are defined by network
management. A PVC consists of the originating
frame relay network element address, originating
DLCI, terminating frame relay network element
address and terminating DLCI.
This is controlled by PAR(Portable Auto Route)
controller.
SPVC - Soft Permanent Virtual Circuits.
This is a PVC controlled by PNNI Controller.
Frame Relay PVC/SPVC end-point/Channel is referred to as
frame Relay connection in this MIB.
Traffic shaping parameters:
CIR, EIR, Bc, Be, DE, Tc, AR corresponding to
rate of the physical interface.
CIR - Committed Information Rate.
This is the rate of traffic that the PVC
will support as 'comitted' traffic.
The committed rate(in bits per second) at which
the ingress access interface trunk interfaces,
and egress access interface of a frame relay
network transfer information to the destination
frame relay end system under normal conditions.
The rate is averaged over a minimum time interval
Tc.
AR - Access Rate
The maximum number of bits per second that an end
station can transmit into the network is
bounded by the acess rate of the user-network
interface. The line speed of the user network
connection limits the access rate.
Bc - Committed Burst Size
The maximum amount of data(in bits) that the
network agrees to transfer, under normal conditions
during a time interval Tc.
The data is in bytes in the current implementation.
Be - Excess Burst Size
The maximum amount of uncommitted data(in bits)
in excess of BC that a frame relay network can
attempt to deliver during a time interval Tc.
This data generally is delivered with a low
probability than Bc. The network treats Be
data as discard eligible.
The data is in bytes in the current implementation.
Tc - The committed rate measurement interval.
The time interval during which the user can send
only BC committed amount of data and BE excess
amount of data.
EIR - Excess Information Rate
This is the bandwidth in excess of CIR
the PVC will be allowed to burst on a
a given PVC.
The average rate at which excess traffic is
to be policed. This number is computed based
on Bc, Be, CIR and Tc.
DE - Discard Eligibility
Frame Forwarding Port: Frame Forwarding Ports are identified
by portType = frame-forward(3).
NOTE: The objects related to frame relay ports are
available in ifTable,if ifTable is implemented
in service module/card.
Following Service Modules support ifTable:
FRSM-12