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Cisco WAN Manager User’s Guide
Version 10.5, Part Number 78-12945-01 Rev. D0, August 2003
Chapter7 Service Class Template Manager
Functional Interaction
• GCRA-1: Indicates the handling of cells that fail the first (PCR) bucket of the policer. If object
UPC_ENABLE is set to disable the policing, then this object is not used. Options for this feature
include: 1- Discard, 2- Set CLP bit, 3- Set CLP of untagged cells, discard tagged cells.
• GCRA-2: Indicates the handling of cells that fail the second (PCR) bucket of the policer. If object
UPC_ENABLE is set to disable the policing, then this object is not used. Options for this feature
include: 1- Discard, 2- Set CLP bit, 3- Set CLP of untagged cells, discard tagged cells.
Conn Parm: Displays information related to connection types, services and categories
• Service Type: The service type (i.e. CBR, VBR, ABR) to which the parameters apply.
• Service Category: The service category to which the service type belongs. All service types that
belong to the same service category should be mapped to the same Class of Service Buffer. Access:
read only. Values: 0-65535.
• Peak Cell Rate (PCR): The peak (maximum) cell rate for a connection using this service type. This
value is a percentage of the maximum cell rate for the logical interface. 1000000 is equal to 100%.
Range and Units: 0-1000000.
• Sustained Cell Rate (SCR): The sustained cell rate for a connection using this service type. This
value is a percentage of the PCR. 1000000 is equal to 100%. Range and Units: 0-1000000.
• Min Cell Rate (MCR): The minimum cell rate for a connection using this service type. This value
is a percentage of the PCR. 1000000 is equal to 100%. Range and Units: 0-1000000.
• ICR: Initial Cell Rate. The cell rate used to begin a transmission on a connection that has been idle
for a configured period of time. This value is a percentage of the PCR for the logical interface.
1000000 is equal to 100%. (Used only on ABR service type connections.) Range and Units:
0-1000000.
• MBS: Max Burst Size. The maximum number of cells that may arrive at a rate equal to the PCR.
Used for policing. Range and Units: 1-500000.
• MFS: Max Frame Size. The maximum AAL5 frame size in cells.
• CDVT: Cell Delay Variation Tolerance for the first leaky bucket.
• Packet Discard Mode: Enables or disables Packet Discard Mode on the connection. Range and units:
1=enabled; 2=disabled.
VC Threshold: Displays information related to the Virtual Channel Threshold
• Service Type: The service type (i.e. CBR, VBR, ABR) to which the parameters apply.
• Service Category: The service category to which the service type belongs. All service types that
belong to the same service category should be mapped to the same Class of Service Buffer. Access:
read only. Values: 0-65535.
• Maximum Threshold: The VcMax Threshold for CLP (0+1) cells in microseconds. Range and units:
0-5000000 microseconds.
• CLP (1) High Threshold: Cell Loss Priority High Threshold (% of VC QMax) is the highest
threshold for the bit in the header of an ATM cell that identifies the cell as eligible for discard within
the network under predefined congestion conditions. Most often set by the ingress policing function.
• CLP-LOW/EPD1: CLP (1) Low or EPDs (1): Cell Loss Priority Low Threshold (% of VC QMax)/
Early Packet Discard. If AAL5 FBTC = yes, then for the BXM card this is the EPD threshold setting.
EPDs is the lowest threshold for the bit in the header of an ATM cell that identifies the cell as eligible
for discard within the network under predefined congestion conditions.