Cabletron Systems STHI 44 STHI-44 Specifications Page 74

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SPECTRUM Enterprise Manager Cisco StrataCom BPX8600 Series
74 of 105
PCR
The Peak Cell Rate (0+1) (PCR), specifies an upper
bound on rate at which traffic can be submitted
on an ATM connection. This field applies to the
First Leaky Bucket for leaving cells with Cell Loss
Priority of “0” or “1.”
SCR
The Sustainable Cell Rate (SCR), is an upper
bound on the conforming average rate of an ATM
connection, over time scales which are long
relative to those for which the PCR is defined.
Enforcement of this bound by the UPC could
allow the network to allocate sufficient resources,
but less than those based on the PCR, and still
ensure that the performance objectives (e.g., Cell
Loss Ration) can be achieved.
MCR
Other end Minimum Cell Rate (MCR), specifies
the rate at which the source is always allowed to
send.
ATM Information - ATM Endpoint
This view shows the ATM Endpoint Tables used to
model a PVC endpoint. These tables contain the
traffic parameters for ATM endpoint.
To access these tables, select ATM Information -
> ATM Endpoint from the Icon Subviews menu
for the StComCommonApp. These two tables,
ATM Endpoint Table 1 and ATM Endpoint Table
2, will display the following information:
ATM Endpoint Table 1
Index
The index into the table for this endpoint.
Although only 5000 endpoints may exist on a
node, 10000 possible index values exist to
support DAX (intra-node) connections.
Description
Describes this endpoint. Contains information
about the domain, nodename, slot, port, VPI
(Virtual Path Identifier), and VCI (Virtual Channel
Identifier) for the endpoint. Domain and
nodename need not be given but slot, port, VPI,
and VCI values must exist.
Other Index
The index into the remote node’s ATM Endpoint
table for this endpoint. For DAX (intra-node)
connections, this index is associated with the
local node and will be in the range of 5000 to
9999.
Other Description
Describes the remote PVC endpoint. Contains
information about the domain, nodename, slot,
port, VPI, and VCI for the endpoint.
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