CTRON-TX-QUEUE-ARBITRATION-MIB

All MIBs › CTRON-TX-QUEUE-ARBITRATION-MIB

Category: Quality of Service, Vendor: Cabletron/Enterasys

Description: Configures Cabletron transmit queue arbitration policy for scheduling egress traffic across priority queues.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is CTRON-TX-QUEUE-ARBITRATION-MIB?

CTRON-TX-QUEUE-ARBITRATION-MIB is a Cabletron Systems proprietary MIB configuring transmit-queue arbitration and port-group mapping. Its port-group-map table binds an interface to a specific port group, an arbitration table records queue count, slice count, and arbitration setting per group, and a buffer-optimize-enable flag rounds out the configuration. As a configuration MIB it lets an administrator confirm transmit-queue arbitration policy and interface-to-port-group mapping on a Cabletron switch. It is deployed on Cabletron Systems switching equipment. Engineers can download the CTRON-TX-QUEUE-ARBITRATION-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CTRON-TX-QUEUE-ARBITRATION-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Cabletron Systems switching equipment

Monitoring Examples

An administrator checks ctTxQArbSetting and ctTxQPortGroupMapTable to confirm transmit-queue arbitration policy for a specific port group on a Cabletron switch.

What Can Be Monitored

transmit-queue arbitration and port-group mapping

Imported Objects

From CTRON-MIB-NAMES

ctTxQArb

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1213-MIB

ifIndex

OIDs

OID symbolic	OID numeric	Type	Access	Description
ctTxQArbConfig	1.3.6.1.4.1.52.4.1.5.12.1
ctTxQPortGroupMapTable	1.3.6.1.4.1.52.4.1.5.12.1.1		not-accessible	The ctTxQPortGroupMapTable defines the mapping of interfaces to a specific port group.
ctTxQPortGroupEntry	1.3.6.1.4.1.52.4.1.5.12.1.1.1		not-accessible	Defines a particular entry containing objects pertaining to definition and control over interfaces supporting multiple transmit queue arbitration.
INT ctTxQPortGroup	1.3.6.1.4.1.52.4.1.5.12.1.1.1.1	INTEGER	read-only	Indicates the transmit queue port group to which the interface claims membership. The specific interface is indicated by the instancing information.
ctTxQArbTable	1.3.6.1.4.1.52.4.1.5.12.1.2		not-accessible	A table containing entries to specify the approximate priority for servicing of each transmit queue for each port group on the device.
ctTxQArbEntry	1.3.6.1.4.1.52.4.1.5.12.1.2.1		not-accessible	Specifies the entries in the ctTxQArbTable.
INT ctTxQArbNumQueues	1.3.6.1.4.1.52.4.1.5.12.1.2.1.2	INTEGER	read-only	The number of transmit queues for each port in this port group.
INT ctTxQArbNumSlices	1.3.6.1.4.1.52.4.1.5.12.1.2.1.3	INTEGER	read-only	The number of 'slices' into which transmit resources are divided. This determines the resolution with which transmit priority can be allocated to each of the transmit queues. For example, if the number of slices is 16, then transmit resources may be allocated to each transmit queue in units of 1/16 (6.25% of the total). The numbers of slices allocated to all queues must add up to the value of this object (i.e., 100%).
OCT ctTxQArbSetting	1.3.6.1.4.1.52.4.1.5.12.1.2.1.4	OCTET STRING	read-write	The approximate percentage of a port's transmit resources to be allocated to each transmit queue. This allows for fine-tuning of the 'strict priority' configuration. Under strict priority, the highest queue (ctTxQArbNumQueues - 1) has the highest priority, followed by (ctTxQArbNumQueues - 2), etc. Queue 0 always has the lowest priority. All entries in a higher priority queue will be transmitted before any entries from the lower priority queues. This object allows the modification of the strict priority scheme so that lower priority queues can be guaranteed some access to the transmitter. This object is an octet string in which the number of octets corresponds to the number of transmit queues for each port in this port group, as indicated by ctTxQArbNumQueues. The value of the first octet represents the number of 'slices' of transmit resources to allocate to Queue 0, the second octet represents the number for Queue 1, and so forth. The sum of all the octets in the octet string must add up to the total number of slices available for the port. For example, on a port having 4 transmit queues and where transmit resources are divided into 16 slices, writing an octet string of {0x00, 0x04, 0x04, 0x08} would have the following effect: At least 50% of the frames transmitted are from Queue 3 At least 25% of the frames transmitted are from Queue 2 At least 25% of the frames transmitted are from Queue 1 No frames will be transmitted from Queue 0 until Queues 1, 2 and 3 are empty.
ctTxQBufferConfig	1.3.6.1.4.1.52.4.1.5.12.2
INT ctTxQBufferOptimizeEnable	1.3.6.1.4.1.52.4.1.5.12.2.1	INTEGER	read-write	enabled (1) - optimize system buffer distribution for default CoS queue disabled (2) - use default system buffer distribution.

RFC description

Cabletron Systems transmit queue arbitration MIB for managing priority queueing and tx queue scheduling policies (vendor-private).

Start monitoring Cabletron Systems switch (transmit-queue arbitration) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download CTRON-TX-QUEUE-ARBITRATION-MIB

What Is CTRON-TX-QUEUE-ARBITRATION-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description