This group defines Frame Relay attributes collected by Frame Relay
Vc.
The purpose of Vc attributes is to aid end users and verification
people to understand the Vc internal behavior. This is particularly
useful when the network has experienced abnormality and we want
to isolate problems and pinpoint trouble spots.
Attributes are collected on a per Vc basis. Until a need is identified,
statistics are not collected at a processor level. Each attribute is
stored in a 32 bit field and is initialized to zero when a Vc enters
into the data transfer state. When a PVC is disconnected and then
connected again, the attributes will be reset. Attributes cannot be
reset through other methods.
Frame Relay Vc uses a best effort data packet delivery protocol and
a different packet segmentation and combination methods from the
General Vc. The Frame Relay Vc uses the same call setup and
control mechanism (e.g. the support of non-flow control data
packets) as in a General Vc. Most General Vc statistics and internal
variables are used in a Frame Relay Vc and are displayed by
software developers