203 lines
6.8 KiB
Plaintext
203 lines
6.8 KiB
Plaintext
CTRON-TX-QUEUE-ARBITRATION-MIB DEFINITIONS ::= BEGIN
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-- ctron-tx-queue-arbitration-mib.txt
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-- Revision: 01.00.03
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-- Part Number:
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-- Date: "200501141756Z" - Fri Jan 14 17:56 GMT 2005
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-- ctron-tx-queue-arbitration-mib.txt
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-- Revision: 01.00.02
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-- Part Number:
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-- Date: October 5, 1998
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-- Cabletron Systems, Inc.
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-- 35 Industrial Way, P.O. Box 5005
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-- Rochester, NH 03867-0505
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-- (603) 332-9400
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-- support@ctron.com
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-- This module provides authoritative definitions for Cabletron's
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-- enterprise-specific priority queueing MIB.
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--
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-- This module will be extended, as required.
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--
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-- Cabletron Systems reserves the right to make changes in
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-- specification and other information contained in this document
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-- without prior notice. The reader should consult Cabletron Systems
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-- to determine whether any such changes have been made.
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--
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-- In no event shall Cabletron Systems be liable for any incidental,
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-- indirect, special, or consequential damages whatsoever (including
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-- but not limited to lost profits) arising out of or related to this
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-- document or the information contained in it, even if Cabletron
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-- Systems has been advised of, known, or should have known, the
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-- possibility of such damages.
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--
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-- Cabletron grants vendors, end-users, and other interested parties
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-- a non-exclusive license to use this Specification in connection
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-- with the management of Cabletron products.
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-- Copyright September 1998-2005 Cabletron Systems
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IMPORTS
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OBJECT-TYPE
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FROM RFC-1212
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ctTxQArb
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FROM CTRON-MIB-NAMES
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ifIndex
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FROM RFC1213-MIB;
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-- The ctTxQArb MIB provides configuration for the priority in
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-- which transmit queues are serviced for Cabletron
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-- devices that support multiple transmit queues.
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ctTxQArbConfig OBJECT IDENTIFIER ::= { ctTxQArb 1 }
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-- The ctTxQArbConfig group manages the selection of priorities
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-- for servicing a specific port group's transmit queues.
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--
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-- The implementation of this group is MANDATORY.
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ctTxQBufferConfig OBJECT IDENTIFIER ::= { ctTxQArb 2 }
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-- The ctTxQBufferConfig group manages the buffer distribution
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-- mechanism for the Tx and Rx queues.
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--
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-- The implementation of this group is OPTIONAL.
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ctTxQPortGroupMapTable OBJECT-TYPE
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SYNTAX SEQUENCE OF CtTxQPortGroupEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"The ctTxQPortGroupMapTable defines the mapping of interfaces
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to a specific port group."
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::= { ctTxQArbConfig 1 }
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ctTxQPortGroupEntry OBJECT-TYPE
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SYNTAX CtTxQPortGroupEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"Defines a particular entry containing objects pertaining to
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definition and control over interfaces supporting multiple transmit
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queue arbitration."
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INDEX { ifIndex }
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::= { ctTxQPortGroupMapTable 1 }
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CtTxQPortGroupEntry ::= SEQUENCE {
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ctTxQPortGroup
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INTEGER
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}
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ctTxQPortGroup OBJECT-TYPE
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SYNTAX INTEGER
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ACCESS read-only
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STATUS mandatory
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DESCRIPTION
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"Indicates the transmit queue port group to which the interface
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claims membership. The specific interface is indicated
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by the instancing information."
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::= { ctTxQPortGroupEntry 1 }
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ctTxQArbTable OBJECT-TYPE
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SYNTAX SEQUENCE OF CtTxQArbEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"A table containing entries to specify the approximate priority
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for servicing of each transmit queue for each port group on the
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device."
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::= { ctTxQArbConfig 2 }
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ctTxQArbEntry OBJECT-TYPE
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SYNTAX CtTxQArbEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"Specifies the entries in the ctTxQArbTable."
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INDEX { ctTxQPortGroup }
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::= { ctTxQArbTable 1 }
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CtTxQArbEntry ::= SEQUENCE {
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ctTxQArbNumQueues
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INTEGER,
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ctTxQArbNumSlices
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INTEGER,
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ctTxQArbSetting
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OCTET STRING
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}
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ctTxQArbNumQueues OBJECT-TYPE
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SYNTAX INTEGER
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ACCESS read-only
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STATUS mandatory
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DESCRIPTION
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"The number of transmit queues for each port in this port group."
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::= { ctTxQArbEntry 2 }
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ctTxQArbNumSlices OBJECT-TYPE
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SYNTAX INTEGER
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ACCESS read-only
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STATUS mandatory
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DESCRIPTION
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"The number of 'slices' into which transmit resources are divided. This
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determines the resolution with which transmit priority can be allocated
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to each of the transmit queues. For example, if the number of slices
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is 16, then transmit resources may be allocated to each transmit queue
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in units of 1/16 (6.25% of the total). The numbers of slices allocated
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to all queues must add up to the value of this object (i.e., 100%)."
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::= { ctTxQArbEntry 3 }
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ctTxQArbSetting OBJECT-TYPE
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SYNTAX OCTET STRING
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ACCESS read-write
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STATUS mandatory
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DESCRIPTION
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"The approximate percentage of a port's transmit resources to
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be allocated to each transmit queue. This allows for fine-tuning
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of the 'strict priority' configuration.
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Under strict priority, the highest queue (ctTxQArbNumQueues - 1)
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has the highest priority, followed by (ctTxQArbNumQueues - 2), etc.
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Queue 0 always has the lowest priority. All entries in a higher
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priority queue will be transmitted before any entries from the lower
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priority queues. This object allows the modification of the strict
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priority scheme so that lower priority queues can be guaranteed some
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access to the transmitter.
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This object is an octet string in which the number of octets corresponds
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to the number of transmit queues for each port in this port group,
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as indicated by ctTxQArbNumQueues. The value of the first octet
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represents the number of 'slices' of transmit resources to allocate to
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Queue 0, the second octet represents the number for Queue 1, and so
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forth. The sum of all the octets in the octet string must add up to
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the total number of slices available for the port.
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For example, on a port having 4 transmit queues and where transmit
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resources are divided into 16 slices, writing an octet string of
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{0x00, 0x04, 0x04, 0x08} would have the following effect:
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At least 50% of the frames transmitted are from Queue 3
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At least 25% of the frames transmitted are from Queue 2
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At least 25% of the frames transmitted are from Queue 1
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No frames will be transmitted from Queue 0 until Queues 1, 2 and 3
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are empty."
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::= { ctTxQArbEntry 4 }
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ctTxQBufferOptimizeEnable OBJECT-TYPE
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SYNTAX INTEGER {
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enable(1),
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disable(2)
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}
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ACCESS read-write
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STATUS optional
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DESCRIPTION
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"enabled (1) - optimize system buffer distribution for default CoS queue
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disabled (2) - use default system buffer distribution."
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::= { ctTxQBufferConfig 1 }
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END
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