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mibs/arista/ARISTA-TAPAGG-MIB
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mibs/arista/ARISTA-TAPAGG-MIB
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ARISTA-TAPAGG-MIB DEFINITIONS ::= BEGIN
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IMPORTS
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MODULE-IDENTITY, OBJECT-TYPE,
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Integer32, Counter64 FROM SNMPv2-SMI
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MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF
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DisplayString FROM SNMPv2-TC
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AristaQosShortId FROM ARISTA-QOS-MIB
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aristaMibs FROM ARISTA-SMI-MIB;
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aristaTapaggMIB MODULE-IDENTITY
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LAST-UPDATED "202104230000Z"
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ORGANIZATION "Arista Networks, Inc."
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CONTACT-INFO
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"Arista Networks, Inc.
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Postal: 5453 Great America Parkway
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Santa Clara, CA 95054
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Tel: +1 408 547-5500
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E-mail: snmp@arista.com"
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DESCRIPTION
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"This MIB contains information related to the tapagg feature
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that is implemented on specific Arista switches running EOS.
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On specific Arista devices, EOS offers a powerful solution for
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network performance monitoring. These devices have significant
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bandwidth capacity and different port or interface speed options
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for a non-blocking monitoring solution. This specific EOS
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feature is called 'TAP aggregation' or 'tapagg'. These devices are
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typically capable of performing packet classification in
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hardware as well, and that can be used to steer the monitored
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traffic as desired, directly to the right set of external tools.
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With the tapagg feature, the Arista switching device is first
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put into an exclusive mode to do the desired packet replication.
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In this mode, normal switching functions like bridging, routing
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etc. are disabled.
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Interfaces are categorized into 'tap' (they receive the traffic
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that is required to be replicated) and 'tool' (they transmit the
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replicated packet out and are in the path towards the monitoring
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tool).
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Furthermore, the tapagg feature allows users to configure
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classification rules via the policy-map construct so that the
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mirrored traffic can be steered appropriately.
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Another layer of indirection that is provided is called
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aggregation-groups. Tap and tool interfaces can be part of a
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specific aggregation group, and that allows for a powerful way
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to express replication or mirroring rules. Policies can change
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the aggregation group for specific set of packets, and that can
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be used to steer traffic out of desired tool interfaces as
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appropriate.
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This MIB provides information related to the tapagg feature."
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REVISION "202104230000Z"
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DESCRIPTION
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"Initial revision of the MIB module."
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::= { aristaMibs 31 }
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aristaTapaggMibObjects OBJECT IDENTIFIER
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::= { aristaTapaggMIB 1 }
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aristaTapaggMibConformance OBJECT IDENTIFIER
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::= { aristaTapaggMIB 2 }
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aristaTapaggPolicyTable OBJECT-TYPE
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SYNTAX SEQUENCE OF AristaTapaggPolicyEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"This table contains information about the tapagg policies
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configured in the system.
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The configuration construct 'policy-map type tapagg' is used
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to create and maintain these policies. Once a policy is defined it
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can be applied against the appropriate interfaces. The basic idea
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behind these policies is to classify packets (IP or IPv6 packet
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information or L2 packet information etc.) and on relevant matches
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take specific actions. One example of an action is to set
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the aggregation-group for the matched traffic.
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This table provides a simple list of tapagg policies, and a
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subsequent table provides additional details for each policy."
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::= { aristaTapaggMibObjects 1 }
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aristaTapaggPolicyEntry OBJECT-TYPE
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SYNTAX AristaTapaggPolicyEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"A single conceptual row containing information about a tapagg
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policy.
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A conceptual row is identified by a bounded-length identifier that
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corresponds to the name of the policy."
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INDEX { aristaTapaggPolicyId }
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::= { aristaTapaggPolicyTable 1 }
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AristaTapaggPolicyEntry ::= SEQUENCE {
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aristaTapaggPolicyId AristaQosShortId,
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aristaTapaggPolicyName DisplayString
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}
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aristaTapaggPolicyId OBJECT-TYPE
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SYNTAX AristaQosShortId
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"A bounded-length identifier that is mapped from the
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tapagg policy name."
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::= { aristaTapaggPolicyEntry 1 }
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aristaTapaggPolicyName OBJECT-TYPE
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SYNTAX DisplayString (SIZE (0..255))
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The full name of the tapagg policy-map."
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::= { aristaTapaggPolicyEntry 2 }
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aristaTapaggPolicyClassTable OBJECT-TYPE
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SYNTAX SEQUENCE OF AristaTapaggPolicyClassEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"This table contains additional details about the tapagg policies
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configured in the system.
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Within a policy the packet match criteria and set action are
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provided using 'class-maps'. Internally the device maintains
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useful state, including counters, for each class-map.
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However, a simple match criteria along with a set
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action can be provided without the class-map construct as well. In
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this case, the device will automatically construct an internal/unique
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class-map for this specific match/set configuration.
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As mentioned above, counters are maintained for matched packets.
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However, this requires explicit configuration so that the counter
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resources in the hardware can be enabled.
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There will be a conceptual row in this table for every class-map
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configured inside a policy."
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::= { aristaTapaggMibObjects 2 }
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aristaTapaggPolicyClassEntry OBJECT-TYPE
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SYNTAX AristaTapaggPolicyClassEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"A single conceptual row containing information about a
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specific class-map within a policy.
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A conceptual row is identified by the following components:
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1. A bounded-length identifier that corresponds to the name of
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the policy.
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2. An index that identifies the sequence in which match
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criteria are evaluated at run time. The index values may not be
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consecutive."
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INDEX { aristaTapaggPolicyId,
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aristaTapaggPolicyClassIndex
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}
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::= { aristaTapaggPolicyClassTable 1 }
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AristaTapaggPolicyClassEntry ::= SEQUENCE {
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aristaTapaggPolicyClassIndex Integer32,
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aristaTapaggPolicyClassName DisplayString,
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aristaTapaggPolicyPktsMatched Counter64,
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aristaTapaggPolicyBytesMatched Counter64
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}
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aristaTapaggPolicyClassIndex OBJECT-TYPE
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SYNTAX Integer32 (1..2147483647)
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"An index that identifies the sequence in which match criteria are
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evaluated in the device hardware. An index with a smaller value
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will be evaluated first. The index values themselves may not be
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consecutive."
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::= { aristaTapaggPolicyClassEntry 1 }
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aristaTapaggPolicyClassName OBJECT-TYPE
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SYNTAX DisplayString (SIZE (0..255))
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The name of the class-map within the policy that corresponds
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to this conceptual row.
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As described earlier, a simple match/set configuration is possible
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without creating a class-map construct. In that the case, the
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device manages relevant state by maintaining an internal/unique
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class-map name."
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::= { aristaTapaggPolicyClassEntry 2 }
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aristaTapaggPolicyPktsMatched OBJECT-TYPE
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SYNTAX Counter64
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of packets that matched the specific packet
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classification criteria that corresponds to this conceptual row."
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::= { aristaTapaggPolicyClassEntry 3 }
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aristaTapaggPolicyBytesMatched OBJECT-TYPE
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SYNTAX Counter64
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of bytes that matched the specific packet
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classification criteria that corresponds to this conceptual row."
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::= { aristaTapaggPolicyClassEntry 4 }
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-- Compliance and conformance
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aristaTapaggMibCompliances OBJECT IDENTIFIER
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::= { aristaTapaggMibConformance 1 }
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aristaTapaggMibGroups OBJECT IDENTIFIER
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::= { aristaTapaggMibConformance 2 }
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aristaTapaggMibCompliance MODULE-COMPLIANCE
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STATUS current
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DESCRIPTION
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"The compliance statement for Arista switches that implement
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the ARISTA-TAPAGG-MIB."
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MODULE -- this module
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MANDATORY-GROUPS {
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aristaTapaggPolicyGroup
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}
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::= { aristaTapaggMibCompliances 1 }
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aristaTapaggPolicyGroup OBJECT-GROUP
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OBJECTS {
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aristaTapaggPolicyName,
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aristaTapaggPolicyClassName,
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aristaTapaggPolicyPktsMatched,
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aristaTapaggPolicyBytesMatched
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}
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STATUS current
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DESCRIPTION
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"The collection of objects that provide tapagg policy information
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in the system."
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::= { aristaTapaggMibGroups 1 }
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END
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