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README.md

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Cisco Catalyst 3750V2-48PS by SNMP

Overview

Courtesy of Cisco Systems, Inc. Unauthorized use not permitted.

The Cisco Catalyst 3750 Series switches are a premier line of enterprise-class, stackable, multilayer switches that provide high availability, security, and quality of service (QoS) to enhance the operation of the network. Its innovative unified stack management raises the bar in stack management, redundancy, and failover.

https://www.cisco.com/c/en/us/support/switches/catalyst-3750v2-48ps-switch/model.html

Requirements

Zabbix version: 7.0 and higher.

Tested versions

This template has been tested on:

Cisco Catalyst 3750V2-48PS

Configuration

Zabbix should be configured according to the instructions in the Templates out of the box section.

Setup

Refer to the vendor documentation.

Macros used

Name	Description	Default
{$CPU.UTIL.CRIT}		`90`
{$ICMP_LOSS_WARN}		`20`
{$ICMP_RESPONSE_TIME_WARN}		`0.15`
{$IF.ERRORS.WARN}		`2`
{$IF.UTIL.MAX}		`90`
{$IFCONTROL}		`1`
{$MEMORY.UTIL.MAX}		`90`
{$NET.IF.IFADMINSTATUS.MATCHES}		`^.*`
{$NET.IF.IFADMINSTATUS.NOT_MATCHES}	Ignore down(2) administrative status	`^2$`
{$NET.IF.IFALIAS.MATCHES}		`.*`
{$NET.IF.IFALIAS.NOT_MATCHES}		`CHANGE_IF_NEEDED`
{$NET.IF.IFDESCR.MATCHES}		`.*`
{$NET.IF.IFDESCR.NOT_MATCHES}		`CHANGE_IF_NEEDED`
{$NET.IF.IFNAME.MATCHES}		`^.*$`
{$NET.IF.IFNAME.NOT_MATCHES}	Filter out loopbacks, nulls, docker veth links and docker0 bridge by default	`Macro too long. Please see the template.`
{$NET.IF.IFOPERSTATUS.MATCHES}		`^.*$`
{$NET.IF.IFOPERSTATUS.NOT_MATCHES}	Ignore notPresent(6)	`^6$`
{$NET.IF.IFTYPE.MATCHES}		`.*`
{$NET.IF.IFTYPE.NOT_MATCHES}		`CHANGE_IF_NEEDED`
{$SNMP.TIMEOUT}		`5m`
{$TEMP_CRIT}		`60`
{$TEMP_CRIT_LOW}		`5`
{$TEMP_WARN}		`50`

Items

Name	Description	Type	Key and additional info
Cisco Catalyst 3750V2-48PS: ICMP ping		Simple check	icmpping
Cisco Catalyst 3750V2-48PS: ICMP loss		Simple check	icmppingloss
Cisco Catalyst 3750V2-48PS: ICMP response time		Simple check	icmppingsec
Cisco Catalyst 3750V2-48PS: SNMP traps (fallback)	Item is used to collect all SNMP traps unmatched by other snmptrap items	SNMP trap	snmptrap.fallback
Cisco Catalyst 3750V2-48PS: System contact details	MIB: SNMPv2-MIB The textual identification of the contact person for this managed node, together with information on how to contact this person. If no contact information is known, the value is the zero-length string.	SNMP agent	system.contact Preprocessing Discard unchanged with heartbeat: `1d`
Cisco Catalyst 3750V2-48PS: System description	MIB: SNMPv2-MIB A textual description of the entity. This value should include the full name and version identification of the system's hardware type, software operating-system, and networking software.	SNMP agent	system.descr Preprocessing Discard unchanged with heartbeat: `1d`
Cisco Catalyst 3750V2-48PS: Hardware model name	MIB: ENTITY-MIB	SNMP agent	system.hw.model Preprocessing Discard unchanged with heartbeat: `1d`
Cisco Catalyst 3750V2-48PS: Hardware serial number	MIB: ENTITY-MIB	SNMP agent	system.hw.serialnumber Preprocessing Discard unchanged with heartbeat: `1d`
Cisco Catalyst 3750V2-48PS: System location	MIB: SNMPv2-MIB The physical location of this node (e.g., `telephone closet, 3rd floor'). If the location is unknown, the value is the zero-length string.	SNMP agent	system.location Preprocessing Discard unchanged with heartbeat: `1h`
Cisco Catalyst 3750V2-48PS: System name	MIB: SNMPv2-MIB An administratively-assigned name for this managed node.By convention, this is the node's fully-qualified domain name. If the name is unknown, the value is the zero-length string.	SNMP agent	system.name Preprocessing Discard unchanged with heartbeat: `1h`
Cisco Catalyst 3750V2-48PS: System object ID	MIB: SNMPv2-MIB The vendor's authoritative identification of the network management subsystem contained in the entity. This value is allocated within the SMI enterprises subtree (1.3.6.1.4.1) and provides an easy and unambiguous means for determining`what kind of box' is being managed. For example, if vendor`Flintstones, Inc.' was assigned the subtree1.3.6.1.4.1.4242, it could assign the identifier 1.3.6.1.4.1.4242.1.1 to its `Fred Router'.	SNMP agent	system.objectid Preprocessing Discard unchanged with heartbeat: `1h`
Cisco Catalyst 3750V2-48PS: Operating system	MIB: SNMPv2-MIB	SNMP agent	system.sw.os Preprocessing Regular expression: `Version (.+), RELEASE \1` Discard unchanged with heartbeat: `1d`
Cisco Catalyst 3750V2-48PS: Uptime (network)	MIB: SNMPv2-MIB The time (in hundredths of a second) since the network management portion of the system was last re-initialized.	SNMP agent	system.net.uptime Preprocessing Custom multiplier: `0.01`
Cisco Catalyst 3750V2-48PS: Uptime (hardware)	MIB: HOST-RESOURCES-MIB The amount of time since this host was last initialized. Note that this is different from sysUpTime in the SNMPv2-MIB [RFC1907] because sysUpTime is the uptime of the network management portion of the system.	SNMP agent	system.hw.uptime Preprocessing Check for not supported value ⛔️Custom on fail: Set value to: `0` Custom multiplier: `0.01`
Cisco Catalyst 3750V2-48PS: SNMP agent availability		Zabbix internal	zabbix[host,snmp,available]

Triggers

Name	Description	Expression	Severity	Dependencies and additional info
Cisco Catalyst 3750V2-48PS: Unavailable by ICMP ping	Last three attempts returned timeout. Please check device connectivity.	`max(/Cisco Catalyst 3750V2-48PS by SNMP/icmpping,#3)=0`	High
Cisco Catalyst 3750V2-48PS: High ICMP ping loss		`min(/Cisco Catalyst 3750V2-48PS by SNMP/icmppingloss,5m)>{$ICMP_LOSS_WARN} and min(/Cisco Catalyst 3750V2-48PS by SNMP/icmppingloss,5m)<100`	Warning	Depends on: Cisco Catalyst 3750V2-48PS: Unavailable by ICMP ping
Cisco Catalyst 3750V2-48PS: High ICMP ping response time		`avg(/Cisco Catalyst 3750V2-48PS by SNMP/icmppingsec,5m)>{$ICMP_RESPONSE_TIME_WARN}`	Warning	Depends on: Cisco Catalyst 3750V2-48PS: High ICMP ping loss Cisco Catalyst 3750V2-48PS: Unavailable by ICMP ping
Cisco Catalyst 3750V2-48PS: Device has been replaced	The device serial number has changed. Acknowledge to close the problem manually.	`last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.serialnumber,#1)<>last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.serialnumber,#2) and length(last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.serialnumber))>0`	Info	Manual close: Yes
Cisco Catalyst 3750V2-48PS: System name has changed	The name of the system has changed. Acknowledge to close the problem manually.	`last(/Cisco Catalyst 3750V2-48PS by SNMP/system.name,#1)<>last(/Cisco Catalyst 3750V2-48PS by SNMP/system.name,#2) and length(last(/Cisco Catalyst 3750V2-48PS by SNMP/system.name))>0`	Info	Manual close: Yes
Cisco Catalyst 3750V2-48PS: Operating system description has changed	The description of the operating system has changed. Possible reasons are that the system has been updated or replaced. Acknowledge to close the problem manually.	`last(/Cisco Catalyst 3750V2-48PS by SNMP/system.sw.os,#1)<>last(/Cisco Catalyst 3750V2-48PS by SNMP/system.sw.os,#2) and length(last(/Cisco Catalyst 3750V2-48PS by SNMP/system.sw.os))>0`	Info	Manual close: Yes Depends on: Cisco Catalyst 3750V2-48PS: System name has changed
Cisco Catalyst 3750V2-48PS: Host has been restarted	Uptime is less than 10 minutes.	`(last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.uptime)>0 and last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.uptime)<10m) or (last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.uptime)=0 and last(/Cisco Catalyst 3750V2-48PS by SNMP/system.net.uptime)<10m)`	Warning	Manual close: Yes
Cisco Catalyst 3750V2-48PS: No SNMP data collection	SNMP is not available for polling. Please check device connectivity and SNMP settings.	`max(/Cisco Catalyst 3750V2-48PS by SNMP/zabbix[host,snmp,available],{$SNMP.TIMEOUT})=0`	Warning

LLD rule CPU discovery

Name	Description	Type	Key and additional info
CPU discovery	If your IOS device has several CPUs, you must use CISCO-PROCESS-MIB and its object cpmCPUTotal5minRev from the table called cpmCPUTotalTable , indexed with cpmCPUTotalIndex . This table allows CISCO-PROCESS-MIB to keep CPU statistics for different physical entities in the router, like different CPU chips, group of CPUs, or CPUs in different modules/cards. In case of a single CPU, cpmCPUTotalTable has only one entry.	SNMP agent	cpu.discovery

Name

Description

Type

Key and additional info

CPU discovery

If your IOS device has several CPUs, you must use CISCO-PROCESS-MIB and its object cpmCPUTotal5minRev from the table called cpmCPUTotalTable ,

indexed with cpmCPUTotalIndex .

This table allows CISCO-PROCESS-MIB to keep CPU statistics for different physical entities in the router,

like different CPU chips, group of CPUs, or CPUs in different modules/cards.

In case of a single CPU, cpmCPUTotalTable has only one entry.

SNMP agent

cpu.discovery

Item prototypes for CPU discovery

Name	Description	Type	Key and additional info
#{#SNMPINDEX}: CPU utilization	MIB: CISCO-PROCESS-MIB Object name: cpmCPUTotal5minRev The cpmCPUTotal5minRev MIB object provides a more accurate view of the performance of the router over time than the MIB objects cpmCPUTotal1minRev and cpmCPUTotal5secRev . These MIB objects are not accurate because they look at CPU at one minute and five second intervals, respectively. These MIBs enable you to monitor the trends and plan the capacity of your network. The recommended baseline rising threshold for cpmCPUTotal5minRev is 90 percent. Depending on the platform, some routers that run at 90 percent, for example, 2500s, can exhibit performance degradation versus a high-end router, for example, the 7500 series, which can operate fine. Reference: http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15215-collect-cpu-util-snmp.html	SNMP agent	system.cpu.util[{#SNMPINDEX}]

Name

Description

Type

Key and additional info

#{#SNMPINDEX}: CPU utilization

MIB: CISCO-PROCESS-MIB

Object name: cpmCPUTotal5minRev

The cpmCPUTotal5minRev MIB object provides a more accurate view of the performance of the router over time than the MIB objects cpmCPUTotal1minRev and cpmCPUTotal5secRev . These MIB objects are not accurate because they look at CPU at one minute and five second intervals, respectively. These MIBs enable you to monitor the trends and plan the capacity of your network. The recommended baseline rising threshold for cpmCPUTotal5minRev is 90 percent. Depending on the platform, some routers that run at 90 percent, for example, 2500s, can exhibit performance degradation versus a high-end router, for example, the 7500 series, which can operate fine.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15215-collect-cpu-util-snmp.html

SNMP agent

system.cpu.util[{#SNMPINDEX}]

Trigger prototypes for CPU discovery

Name	Description	Expression	Severity	Dependencies and additional info
#{#SNMPINDEX}: High CPU utilization	The CPU utilization is too high. The system might be slow to respond.	`min(/Cisco Catalyst 3750V2-48PS by SNMP/system.cpu.util[{#SNMPINDEX}],5m)>{$CPU.UTIL.CRIT}`	Warning

LLD rule Entity Serial Numbers discovery

Name	Description	Type	Key and additional info
Entity Serial Numbers discovery		SNMP agent	entity_sn.discovery

Item prototypes for Entity Serial Numbers discovery

Name Description Type Key and additional info

{#ENT_NAME}: Hardware serial number

Name	Description	Type	Key and additional info
{#ENT_NAME}: Hardware serial number	MIB: ENTITY-MIB Object name: entPhysicalSerialNum	SNMP agent	system.hw.serialnumber[{#SNMPINDEX}] Preprocessing Discard unchanged with heartbeat: `1d`

MIB: ENTITY-MIB

Object name: entPhysicalSerialNum

SNMP agent

system.hw.serialnumber[{#SNMPINDEX}]

Preprocessing

Discard unchanged with heartbeat: 1d

Trigger prototypes for Entity Serial Numbers discovery

Name	Description	Expression	Severity	Dependencies and additional info
{#ENT_NAME}: Device has been replaced	Device serial number has changed. Acknowledge to close the problem manually.	`last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.serialnumber[{#SNMPINDEX}],#1)<>last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.serialnumber[{#SNMPINDEX}],#2) and length(last(/Cisco Catalyst 3750V2-48PS by SNMP/system.hw.serialnumber[{#SNMPINDEX}]))>0`	Info

LLD rule FAN discovery

Name	Description	Type	Key and additional info
FAN discovery	The table of fan status maintained by the environmental monitor.	SNMP agent	fan.discovery

Item prototypes for FAN discovery

Name	Description	Type	Key and additional info
{#SNMPVALUE}: Fan status	MIB: CISCO-ENVMON-MIB Object name: ciscoEnvMonFanState	SNMP agent	sensor.fan.status[{#SNMPINDEX}]

Name

Description

Type

Key and additional info

{#SNMPVALUE}: Fan status

MIB: CISCO-ENVMON-MIB

Object name: ciscoEnvMonFanState

SNMP agent

sensor.fan.status[{#SNMPINDEX}]

Trigger prototypes for FAN discovery

Name	Description	Expression	Severity	Dependencies and additional info
{#SNMPVALUE}: Fan is in critical state	Please check the fan unit	`last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.fan.status[{#SNMPINDEX}])=3 or last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.fan.status[{#SNMPINDEX}])=4`	Average
{#SNMPVALUE}: Fan is in warning state	Please check the fan unit	`last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.fan.status[{#SNMPINDEX}])=2`	Warning	Depends on: {#SNMPVALUE}: Fan is in critical state

LLD rule Memory discovery

Name	Description	Type	Key and additional info
Memory discovery	Discovery of ciscoMemoryPoolTable, a table of memory pool monitoring entries. http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15216-contiguous-memory.html	SNMP agent	memory.discovery

Name

Description

Type

Key and additional info

Memory discovery

Discovery of ciscoMemoryPoolTable, a table of memory pool monitoring entries.

http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15216-contiguous-memory.html

SNMP agent

memory.discovery

Item prototypes for Memory discovery

Name	Description	Type	Key and additional info
{#SNMPVALUE}: Free memory	MIB: CISCO-MEMORY-POOL-MIB Object name: ciscoMemoryPoolFree Indicates the number of bytes from the memory pool that are currently unused on the managed device. Note that the sum of ciscoMemoryPoolUsed and ciscoMemoryPoolFree is the total amount of memory in the pool Reference: http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15216-contiguous-memory.html	SNMP agent	vm.memory.free[{#SNMPINDEX}]
{#SNMPVALUE}: Used memory	MIB: CISCO-MEMORY-POOL-MIB Object name: ciscoMemoryPoolUsed Indicates the number of bytes from the memory pool that are currently in use by applications on the managed device. Reference: http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15216-contiguous-memory.html	SNMP agent	vm.memory.used[{#SNMPINDEX}]
{#SNMPVALUE}: Memory utilization	Memory utilization in %	Calculated	vm.memory.util[{#SNMPINDEX}]

Name

Description

Type

Key and additional info

{#SNMPVALUE}: Free memory

MIB: CISCO-MEMORY-POOL-MIB

Object name: ciscoMemoryPoolFree

Indicates the number of bytes from the memory pool that are currently unused on the managed device. Note that the sum of ciscoMemoryPoolUsed and ciscoMemoryPoolFree is the total amount of memory in the pool

Reference: http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15216-contiguous-memory.html

SNMP agent

vm.memory.free[{#SNMPINDEX}]

{#SNMPVALUE}: Used memory

MIB: CISCO-MEMORY-POOL-MIB

Object name: ciscoMemoryPoolUsed

Indicates the number of bytes from the memory pool that are currently in use by applications on the managed device.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/15216-contiguous-memory.html

SNMP agent

vm.memory.used[{#SNMPINDEX}]

{#SNMPVALUE}: Memory utilization

Memory utilization in %

Calculated

vm.memory.util[{#SNMPINDEX}]

Trigger prototypes for Memory discovery

Name	Description	Expression	Severity	Dependencies and additional info
{#SNMPVALUE}: High memory utilization	The system is running out of free memory.	`min(/Cisco Catalyst 3750V2-48PS by SNMP/vm.memory.util[{#SNMPINDEX}],5m)>{$MEMORY.UTIL.MAX}`	Average

LLD rule Network interfaces discovery

Name	Description	Type	Key and additional info
Network interfaces discovery	Discovering interfaces from IF-MIB.	SNMP agent	net.if.discovery

Item prototypes for Network interfaces discovery

Name	Description	Type	Key and additional info
Interface {#IFNAME}({#IFALIAS}): Inbound packets discarded	MIB: IF-MIB The number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher-layer protocol. One possible reason for discarding such a packet could be to free up buffer space. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.	SNMP agent	net.if.in.discards[{#SNMPINDEX}] Preprocessing Change per second:
Interface {#IFNAME}({#IFALIAS}): Inbound packets with errors	MIB: IF-MIB For packet-oriented interfaces, the number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or fixed-length interfaces, the number of inbound transmission units that contained errors preventing them from being deliverable to a higher-layer protocol. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.	SNMP agent	net.if.in.errors[{#SNMPINDEX}] Preprocessing Change per second:
Interface {#IFNAME}({#IFALIAS}): Bits received	MIB: IF-MIB The total number of octets received on the interface, including framing characters. This object is a 64-bit version of ifInOctets. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.	SNMP agent	net.if.in[{#SNMPINDEX}] Preprocessing Change per second: Custom multiplier: `8`
Interface {#IFNAME}({#IFALIAS}): Outbound packets discarded	MIB: IF-MIB The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher-layer protocol. One possible reason for discarding such a packet could be to free up buffer space. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.	SNMP agent	net.if.out.discards[{#SNMPINDEX}] Preprocessing Change per second:
Interface {#IFNAME}({#IFALIAS}): Outbound packets with errors	MIB: IF-MIB For packet-oriented interfaces, the number of outbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or fixed-length interfaces, the number of outbound transmission units that contained errors preventing them from being deliverable to a higher-layer protocol. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.	SNMP agent	net.if.out.errors[{#SNMPINDEX}] Preprocessing Change per second:
Interface {#IFNAME}({#IFALIAS}): Bits sent	MIB: IF-MIB The total number of octets transmitted out of the interface, including framing characters. This object is a 64-bit version of ifOutOctets.Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.	SNMP agent	net.if.out[{#SNMPINDEX}] Preprocessing Change per second: Custom multiplier: `8`
Interface {#IFNAME}({#IFALIAS}): Speed	MIB: IF-MIB An estimate of the interface's current bandwidth in units of 1,000,000 bits per second. If this object reports a value of `n' then the speed of the interface is somewhere in the range of` n-500,000' to`n+499,999'. For interfaces which do not vary in bandwidth or for those where no accurate estimation can be made, this object should contain the nominal bandwidth. For a sub-layer which has no concept of bandwidth, this object should be zero.	SNMP agent	net.if.speed[{#SNMPINDEX}] Preprocessing Custom multiplier: `1000000` Discard unchanged with heartbeat: `1h`
Interface {#IFNAME}({#IFALIAS}): Operational status	MIB: IF-MIB The current operational state of the interface. - The testing(3) state indicates that no operational packet scan be passed - If ifAdminStatus is down(2) then ifOperStatus should be down(2) - If ifAdminStatus is changed to up(1) then ifOperStatus should change to up(1) if the interface is ready to transmit and receive network traffic - It should change todormant(5) if the interface is waiting for external actions (such as a serial line waiting for an incoming connection) - It should remain in the down(2) state if and only if there is a fault that prevents it from going to the up(1) state - It should remain in the notPresent(6) state if the interface has missing(typically, hardware) components.	SNMP agent	net.if.status[{#SNMPINDEX}] Preprocessing Discard unchanged with heartbeat: `6h`
Interface {#IFNAME}({#IFALIAS}): Interface type	MIB: IF-MIB The type of interface. Additional values for ifType are assigned by the Internet Assigned Numbers Authority (IANA), through updating the syntax of the IANAifType textual convention.	SNMP agent	net.if.type[{#SNMPINDEX}] Preprocessing Discard unchanged with heartbeat: `6h`

Trigger prototypes for Network interfaces discovery

Name	Description	Expression	Severity	Dependencies and additional info
Interface {#IFNAME}({#IFALIAS}): High input error rate	It recovers when it is below 80% of the `{$IF.ERRORS.WARN:"{#IFNAME}"}` threshold.	`min(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.in.errors[{#SNMPINDEX}],5m)>{$IF.ERRORS.WARN:"{#IFNAME}"}`	Warning	Depends on: Interface {#IFNAME}({#IFALIAS}): Link down
Interface {#IFNAME}({#IFALIAS}): High inbound bandwidth usage	The utilization of the network interface is close to its estimated maximum bandwidth.	`(avg(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.in[{#SNMPINDEX}],15m)>({$IF.UTIL.MAX:"{#IFNAME}"}/100)*last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.speed[{#SNMPINDEX}])) and last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.speed[{#SNMPINDEX}])>0`	Warning	Depends on: Interface {#IFNAME}({#IFALIAS}): Link down
Interface {#IFNAME}({#IFALIAS}): High output error rate	It recovers when it is below 80% of the `{$IF.ERRORS.WARN:"{#IFNAME}"}` threshold.	`min(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.out.errors[{#SNMPINDEX}],5m)>{$IF.ERRORS.WARN:"{#IFNAME}"}`	Warning	Depends on: Interface {#IFNAME}({#IFALIAS}): Link down
Interface {#IFNAME}({#IFALIAS}): High outbound bandwidth usage	The utilization of the network interface is close to its estimated maximum bandwidth.	`(avg(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.out[{#SNMPINDEX}],15m)>({$IF.UTIL.MAX:"{#IFNAME}"}/100)*last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.speed[{#SNMPINDEX}])) and last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.speed[{#SNMPINDEX}])>0`	Warning	Depends on: Interface {#IFNAME}({#IFALIAS}): Link down
Interface {#IFNAME}({#IFALIAS}): Ethernet has changed to lower speed than it was before	This Ethernet connection has transitioned down from its known maximum speed. This might be a sign of autonegotiation issues. Acknowledge to close the problem manually.	change(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.speed[{#SNMPINDEX}])<0 and last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.speed[{#SNMPINDEX}])>0 and ( last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.type[{#SNMPINDEX}])=6 or last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.type[{#SNMPINDEX}])=7 or last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.type[{#SNMPINDEX}])=11 or last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.type[{#SNMPINDEX}])=62 or last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.type[{#SNMPINDEX}])=69 or last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.type[{#SNMPINDEX}])=117 ) and (last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.status[{#SNMPINDEX}])<>2)	Info	Depends on: Interface {#IFNAME}({#IFALIAS}): Link down
Interface {#IFNAME}({#IFALIAS}): Link down	This trigger expression works as follows: 1. It can be triggered if the operations status is down. 2. `{$IFCONTROL:"{#IFNAME}"}=1` - a user can redefine context macro to value - 0. That marks this interface as not important. No new trigger will be fired if this interface is down.	`{$IFCONTROL:"{#IFNAME}"}=1 and (last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.status[{#SNMPINDEX}])=2)`	Average

LLD rule EtherLike discovery

Name	Description	Type	Key and additional info
EtherLike discovery	Discovering interfaces from IF-MIB and EtherLike-MIB. Interfaces with up(1) Operational Status are discovered.	SNMP agent	net.if.duplex.discovery

Item prototypes for EtherLike discovery

Name	Description	Type	Key and additional info
Interface {#IFNAME}({#IFALIAS}): Duplex status	MIB: EtherLike-MIB Object name: dot3StatsDuplexStatus The current mode of operation of the MAC entity. 'unknown' indicates that the current duplex mode could not be determined. Management control of the duplex mode is accomplished through the MAU MIB. When an interface does not support autonegotiation, or when autonegotiation is not enabled, the duplex mode is controlled using ifMauDefaultType. When autonegotiation is supported and enabled, duplex mode is controlled using ifMauAutoNegAdvertisedBits. In either case, the currently operating duplex mode is reflected both in this object and in ifMauType. Note that this object provides redundant information with ifMauType. Normally, redundant objects are discouraged. However, in this instance, it allows a management application to determine the duplex status of an interface without having to know every possible value of ifMauType. This was felt to be sufficiently valuable to justify the redundancy. Reference: [IEEE 802.3 Std.], 30.3.1.1.32,aDuplexStatus.	SNMP agent	net.if.duplex[{#SNMPINDEX}]

Name

Description

Type

Key and additional info

Interface {#IFNAME}({#IFALIAS}): Duplex status

MIB: EtherLike-MIB

Object name: dot3StatsDuplexStatus

The current mode of operation of the MAC

entity. 'unknown' indicates that the current

duplex mode could not be determined.

Management control of the duplex mode is

accomplished through the MAU MIB. When

an interface does not support autonegotiation,

or when autonegotiation is not enabled, the

duplex mode is controlled using

ifMauDefaultType. When autonegotiation is

supported and enabled, duplex mode is controlled

using ifMauAutoNegAdvertisedBits. In either

case, the currently operating duplex mode is

reflected both in this object and in ifMauType.

Note that this object provides redundant

information with ifMauType. Normally, redundant

objects are discouraged. However, in this

instance, it allows a management application to

determine the duplex status of an interface

without having to know every possible value of

ifMauType. This was felt to be sufficiently

valuable to justify the redundancy.

Reference: [IEEE 802.3 Std.], 30.3.1.1.32,aDuplexStatus.

SNMP agent

net.if.duplex[{#SNMPINDEX}]

Trigger prototypes for EtherLike discovery

Name	Description	Expression	Severity	Dependencies and additional info
Interface {#IFNAME}({#IFALIAS}): In half-duplex mode	Please check autonegotiation settings and cabling	`last(/Cisco Catalyst 3750V2-48PS by SNMP/net.if.duplex[{#SNMPINDEX}])=2`	Warning

LLD rule PSU discovery

Name	Description	Type	Key and additional info
PSU discovery	The table of power supply status maintained by the environmental monitor card.	SNMP agent	psu.discovery

Item prototypes for PSU discovery

Name	Description	Type	Key and additional info
{#SNMPVALUE}: Power supply status	MIB: CISCO-ENVMON-MIB Object name: ciscoEnvMonSupplyState	SNMP agent	sensor.psu.status[{#SNMPINDEX}]

Name

Description

Type

Key and additional info

{#SNMPVALUE}: Power supply status

MIB: CISCO-ENVMON-MIB

Object name: ciscoEnvMonSupplyState

SNMP agent

sensor.psu.status[{#SNMPINDEX}]

Trigger prototypes for PSU discovery

Name	Description	Expression	Severity	Dependencies and additional info
{#SNMPVALUE}: Power supply is in critical state	Please check the power supply unit for errors	`last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.psu.status[{#SNMPINDEX}])=3 or last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.psu.status[{#SNMPINDEX}])=4`	Average
{#SNMPVALUE}: Power supply is in warning state	Please check the power supply unit for errors	`last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.psu.status[{#SNMPINDEX}])=2`	Warning	Depends on: {#SNMPVALUE}: Power supply is in critical state

LLD rule Temperature discovery

Name	Description	Type	Key and additional info
Temperature discovery	Discovery of ciscoEnvMonTemperatureTable (ciscoEnvMonTemperatureDescr), a table of ambient temperature status maintained by the environmental monitor.	SNMP agent	temperature.discovery

Name

Description

Type

Key and additional info

Temperature discovery

Discovery of ciscoEnvMonTemperatureTable (ciscoEnvMonTemperatureDescr), a table of ambient temperature status

maintained by the environmental monitor.

SNMP agent

temperature.discovery

Item prototypes for Temperature discovery

Name	Description	Type	Key and additional info
{#SNMPVALUE}: Temperature status	MIB: CISCO-ENVMON-MIB Object name: ciscoEnvMonTemperatureState The current state of the test point being instrumented.	SNMP agent	sensor.temp.status[{#SNMPINDEX}]
{#SNMPVALUE}: Temperature	MIB: CISCO-ENVMON-MIB Object name: ciscoEnvMonTemperatureValue The current measurement of the test point being instrumented.	SNMP agent	sensor.temp.value[{#SNMPINDEX}]

Name

Description

Type

Key and additional info

{#SNMPVALUE}: Temperature status

MIB: CISCO-ENVMON-MIB

Object name: ciscoEnvMonTemperatureState

The current state of the test point being instrumented.

SNMP agent

sensor.temp.status[{#SNMPINDEX}]

{#SNMPVALUE}: Temperature

MIB: CISCO-ENVMON-MIB

Object name: ciscoEnvMonTemperatureValue

The current measurement of the test point being instrumented.

SNMP agent

sensor.temp.value[{#SNMPINDEX}]

Trigger prototypes for Temperature discovery

Name	Description	Expression	Severity	Dependencies and additional info
{#SNMPVALUE}: Temperature is in critical state	This trigger uses temperature sensor state	`last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.temp.status[{#SNMPINDEX}])=3 or last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.temp.status[{#SNMPINDEX}])=4`	High
{#SNMPVALUE}: Temperature is in warning state	This trigger uses temperature sensor state	`last(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.temp.status[{#SNMPINDEX}])=2`	Warning	Depends on: {#SNMPVALUE}: Temperature is in critical state
{#SNMPVALUE}: Temperature is above critical threshold	This trigger uses temperature sensor values as well as temperature sensor status if available	`avg(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.temp.value[{#SNMPINDEX}],5m)>{$TEMP_CRIT:"{#SNMPVALUE}"}`	High
{#SNMPVALUE}: Temperature is above warning threshold	This trigger uses temperature sensor values as well as temperature sensor status if available	`avg(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.temp.value[{#SNMPINDEX}],5m)>{$TEMP_WARN:"{#SNMPVALUE}"}`	Warning	Depends on: {#SNMPVALUE}: Temperature is above critical threshold
{#SNMPVALUE}: Temperature is too low		`avg(/Cisco Catalyst 3750V2-48PS by SNMP/sensor.temp.value[{#SNMPINDEX}],5m)<{$TEMP_CRIT_LOW:"{#SNMPVALUE}"}`	Average

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Cisco Catalyst 3750V2-48PS by SNMP

Overview

Requirements

Tested versions

Configuration

Setup

Macros used

Items

Triggers

LLD rule CPU discovery

Item prototypes for CPU discovery

Trigger prototypes for CPU discovery

LLD rule Entity Serial Numbers discovery

Item prototypes for Entity Serial Numbers discovery

Trigger prototypes for Entity Serial Numbers discovery

LLD rule FAN discovery

Item prototypes for FAN discovery

Trigger prototypes for FAN discovery

LLD rule Memory discovery

Item prototypes for Memory discovery

Trigger prototypes for Memory discovery

LLD rule Network interfaces discovery

Item prototypes for Network interfaces discovery

Trigger prototypes for Network interfaces discovery

LLD rule EtherLike discovery

Item prototypes for EtherLike discovery

Trigger prototypes for EtherLike discovery

LLD rule PSU discovery

Item prototypes for PSU discovery

Trigger prototypes for PSU discovery

LLD rule Temperature discovery

Item prototypes for Temperature discovery

Trigger prototypes for Temperature discovery

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README.md

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