Description

Monitors the hits, misses and failures for small, big, medium, large and huge buffers.

Prerequisites

SNMP should be enabled in end device and device should support OLD-CISCO-MEMORY-MIB OIDs and SNMP credentials should be attached against the device in portal.

Metric Parameters

Metric Parameters
ParameterDescription
Frequency
  • Frequency is the interval in which you want to probe and collect metric data from the target device/resource
  • Frequency is defined in minutes (min).
  • Warning ThresholdIf the metric value satisfies the condition defined along with Warning Threshold value, then a notification is sent to the user.
    Critical ThresholdIf the metric value satisfies the condition defined along with Critical Threshold value, then a notification is sent to the user.
    AlertThe alert value can be set to either Yes or No. If it is Yes, then an alert message is sent to the user.

    Metrics

    small.buffer.hit.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.18.0
    ExpressionNULL
    DescriptionHit rate is the number of times buffers were successfully allocated from the free list. Small buffer size is around 104 bytes each. [OID:1.3.6.1.4.1.9.2.1.18.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    small.buffer.miss.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.19.0
    ExpressionNULL
    DescriptionMiss rate is the number of times a buffer has been requested, but no buffers are available in the free list, or when there are fewer than min buffers in the free list. Small buffer size is around 104 bytes each. [OID: 1.3.6.1.4.1.9.2.1.19.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    small.buffer.miss.percent

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.18.0, 1.3.6.1.4.1.9.2.1.19.0
    ExpressionbufferSmMissRate * 100 / (bufferSmMissRate + bufferSmHitRate)
    DescriptionIt represents the percentage of Small buffer misses with respect to the hit rate and miss rate.
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unit%

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Warning Threshold50-100
    Warning Repeat Count11-12
    Critical OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Critical Threshold100-100
    Critical Repeat Count11-12
    AlertYesYes/No
    Graph (Yes/No)NoYes/No

    Sample Output

    No graph

    medium.buffer.hit.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.26.0
    ExpressionNULL
    DescriptionHit rate is the number of times buffers were successfully allocated from the free list. Medium buffer size is around 600 bytes each. [OID: 1.3.6.1.4.1.9.2.1.26.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    medium.buffer.miss.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.27.0
    ExpressionNULL
    DescriptionMiss rate is the number of times a buffer has been requested, but no buffers are available in the free list, or when there are fewer than min buffers in the free list. Medium buffer size is around 600 bytes each. [OID: 1.3.6.1.4.1.9.2.1.27.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    medium.buffer.miss.percent

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.26.0, 1.3.6.1.4.1.9.2.1.27.0
    ExpressionbufferMdMissRate * 100 / (bufferMdMissRate + bufferMdHitRate)
    DescriptionIt represents the percentage of Medium buffer misses with respect to the hit rate and miss rate.
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unit%

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Warning Threshold50-100
    Warning Repeat Count11-12
    Critical OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Critical Threshold100-100
    Critical Repeat Count11-12
    AlertYesYes/No
    Graph (Yes/No)NoYes/No

    Sample Output

    No graph

    big.buffer.hit.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.34.0
    ExpressionNULL
    DescriptionHit rate is the number of times buffers were successfully allocated from the free list. Big buffer size is around 1524 bytes each. [OID: 1.3.6.1.4.1.9.2.1.34.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    big.buffer.miss.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.35.0
    ExpressionNULL
    DescriptionMiss rate is the number of times a buffer has been requested, but no buffers are available in the free list, or when there are fewer than min buffers in the free list. Big buffer size is around 1524 bytes each. [OID: 1.3.6.1.4.1.9.2.1.35.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    big.buffer.miss.percent

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.34.0, 1.3.6.1.4.1.9.2.1.35.0
    ExpressionbufferBgMissRate * 100 / (bufferBgMissRate + bufferBgHitRate)
    DescriptionIt represents the percentage of Big buffer misses with respect to the hit rate and miss rate.
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unit%

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Warning Threshold50-100
    Warning Repeat Count11-12
    Critical OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Critical Threshold100-100
    Critical Repeat Count11-12
    AlertYesYes/No
    Graph (Yes/No)NoYes/No

    Sample Output

    No graph

    large.buffer.hit.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.42.0
    ExpressionNULL
    DescriptionHit rate is the number of times buffers were successfully allocated from the free list.Large buffer size is around 5024 bytes each.[OID:1.3.6.1.4.1.9.2.1.42.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    large.buffer.miss.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.43.0
    ExpressionNULL
    DescriptionMiss rate is the number of times a buffer has been requested, but no buffers are available in the free list, or when there are fewer than min buffers in the free list. Large buffer size is around 5024 bytes each.[OID: 1.3.6.1.4.1.9.2.1.43.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    large.buffer.miss.percent

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.42.0, 1.3.6.1.4.1.9.2.1.43.0
    ExpressionbufferLgMissRate * 100 / (bufferLgMissRate + bufferLgHitRate)
    DescriptionIt represents the percentage of Large buffer misses with respect to the hit rate and miss rate.
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unit%

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Warning Threshold50-100
    Warning Repeat Count11-12
    Critical OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Critical Threshold100-100
    Critical Repeat Count11-12
    AlertYesYes/No
    Graph (Yes/No)NoYes/No

    Sample Output

    No graph

    huge.buffer.hit.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.66.0
    ExpressionNULL
    DescriptionHit rate is the number of times buffers were successfully allocated from the free list.Huge buffer size is around 18024 bytes each. [OID: 1.3.6.1.4.1.9.2.1.66.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    huge.buffer.miss.rate

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.67.0
    ExpressionNULL
    DescriptionMiss rate is the number of times a buffer has been requested, but no buffers are available in the free list, or when there are fewer than min buffers in the free list. Huge buffer size is around 18024 bytes each. [OID: 1.3.6.1.4.1.9.2.1.67.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical Operator
    Critical Threshold
    Critical Repeat Count
    AlertNoYes/No
    Graph (Yes/No)YesYes/No

    Note: As Alert is not enabled on the above metric, the fields are left blank.

    Sample Output

    No graph

    huge.buffer.miss.percent

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.66.0, 1.3.6.1.4.1.9.2.1.67.0
    ExpressionbufferHgMissRate * 100 / (bufferHgMissRate + bufferHgHitRate)
    DescriptionIt represents the percentage of Huge buffer misses with respect to the hit rate and miss rate.
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unit%

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Warning Threshold50-100
    Warning Repeat Count11-12
    Critical OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Critical Threshold100-100
    Critical Repeat Count11-12
    AlertYesYes/No
    Graph (Yes/No)NoYes/No

    Sample Output

    No graph

    buffer.alloc.fails

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.46.0
    ExpressionNULL
    DescriptionBuffer Failures - The number of failures to grant a buffer to a requester under interrupt time (remember that the router can create new buffers at process switching level, so "failure" does not occur unless there is "no memory"). The number of "failures" represents the number of packets that have been dropped due to buffer shortage. [OID: 1.3.6.1.4.1.9.2.1.46.0]
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Warning Threshold200-2147483647
    Warning Repeat Count11-12
    Critical OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Critical Threshold1000-2147483647
    Critical Repeat Count11-12
    AlertYesYes/No
    Graph (Yes/No)NoYes/No

    Sample Output

    No graph

    buffer.creation.fails

    Metric Details

    Metric Details
    Applicable forDevice
    SNMP OID1.3.6.1.4.1.9.2.1.47.0
    ExpressionNULL
    DescriptionMonitors rate of buffer create failures due to no free memory.
    CategorySNMP monitors
    Collector TypeGateway
    Monitor NameCisco Buffer Usage Statistics
    Unitpsec

    Possible Inputs

    Possible Inputs
    MetricInput ValueRange of Values
    Frequency101 – 1440 (mins)
    Filter
    Warning Operator
    Warning Threshold
    Warning Repeat Count
    Critical OperatorGREATER_THANEnds with, ==, !=, >=, <=, >, <, In Range, Out of range, Equals, Not equals, Equals Ignore Case, Not Equals Ignore Case, Contains, Not contains, Regex match, Regex no match, In string list, Not in string list, In List, Not in list, Starts with
    Critical Threshold00-2147483647
    Critical Repeat Count11-12
    AlertYesYes/No
    Graph (Yes/No)NoYes/No

    Sample Output

    No graph