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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
• TBE: Transient Buffer Exposure. The number of RM cells that can be sent out by a virtual source
before waiting for a BRM cell in return.
• FRTT: FRTT(millisec): Fixed Round-Trip Time. The amount of delay expected for an RM cell to
travel through the network to the destination and back again.
WFQ: Displays information related to Weighted Fair Queuing
• 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.
• WFQ: Weighted Fair Queuing. WFQ queues traffic in separate queues, according to traffic class
definition, guaranteeing each queue some portion of the total available bandwidth. WFQ recognizes
when a particular queue is not fully utilizing its allocated bandwidth and portions that capacity out
to the other queues on a proportionate basis. This is done by portioning out available bandwidth on
the basis of individual information flows according to their message parameters.
All VC: Displays information related to All VC
• 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.
• CoSB No: Class of Service Buffer Number. The number that identifies one of the sixteen Cosb
buffers. A Cosb buffer is a buffer that services connections with similar QoS requirements. Range
and units:1-16.
• CAC Treatment: Connection Admission Control. The CAC algorithms that are supported are: 1)
lcnCac, 2) eCac-Model A, 3) eCac-Model B, 4) eCac-Model C, 5) eCac-Model D, 6) eCac-Model
E, 7) eCac-Model F, 8) mbBwCac. DEFVAL {2}. Access: read-write. Values: 1-256.
• UPC Enable: When a connection is added, a VPI.VCI address is assigned, and UPC parameters are
configured for the connection. For each cell in an ATM stream, the VPI.VCI addresses are verified
and each cell is checked for compliance with UPC parameters.
• UPC CLP: Usage Parameter Control- Cell Loss Priority Select. Enables or disables GCRA policing
functions on the connection. GCRA1-ENB: Enables GCRA1 only. GCRA 1&2: Enables both
GCRA1 & GCRA2. Options for this feature include: 1- Bk 1: CLP (0+1); Bk 2: CLP (0), 2- Bk 1:
CLP (0+1); Bk 2: CLP (0+1), 3- Bk 1: CLP (0+1); Bk 2: Disabled, 4- Bk 1: CLP (0+1) with MFS.
• 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.
• 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.
• 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.