Switch stack monitoring in OpManager

A switch stack is a method of grouping or bridging several switches in a way that they act as one single switch, with the aim of delivering maximum scalability and performance. This manner of stacking is generally regarded as the most effective way of scaling up the capacity of a network.

OpManager's Switch stack monitoring feature helps you discover and monitor your switch stacks for their health and optimum performance and receive alarms. This helps you initiate corrective actions at the earliest, enabling faster troubleshooting.

NOTE: OpManager now supports Cisco switch stack monitoring for versions 125300 and above, and HP switch stack monitoring for versions 127133 and above. Huawei and Juniper switch stack monitoring is supported from version 128235 and above.

Adding a switch stack in OpManager

You can discover stack switches via Add Device or Network Discovery page just like every other device. Click here to learn more about device discovery in OpManager.

Once the switch stack is discovered by using the management IP, OpManager starts monitoring it using SNMP protocol. Furthermore, the switch stacks will be polled at regular intervals to know if there has been any changes made.

Supported Models

Vendor Name Stack Type Supported Models Supported MIB
Cisco Normal Stack Cisco Catalyst 37xx Switch Stack CISCO-STACKWISE-MIB
Cisco Catalyst 29xx Switch Stack
Cisco Catalyst 9200L Fixed Switch Stack
Cisco Catalyst 9200R Switch Stack
Cisco Catalyst 9300L Switch Stack
Cisco Catalyst 36xx Switch Stack
Cisco Catalyst 38xx Switch Stack
Cisco Catalyst 93xx Switch Stack
Cisco Catalyst 35xx Switch Stack
HP Aruba Normal Stack Hewlett-Packard 3800 48G-PoE+-4SFP+ (J9574A) HP-STACK-MIB
HP Aruba2920-48G-POE+
HP Aruba3810M
HP ARUBA 2930F 24G 4SFP (L253A)
HP Aruba5400R
HP Aruba 2930M Switch Stack
Huawei Normal Stack Huawei S Series: S1720, S2700, S5700, and S6720
The SysOID starts with .*
Juniper Normal Stack EX Series: EX2200, EX3300, EX4200, EX4500, EX4550, EX8200 Virtual Chassis
QFX Series: QFX3500, QFX3600, QFX5100, QFX5110, QFX5120, and QFX5200 switches
The SysOID starts with .*

Note: Switches other than the ones mentioned above, will be discovered and classified as a normal switch for switch monitoring. Apart from the above-mentioned switches, users can also customize their supported models by providing the SysOID and the device type of their preferred stack switch.

Various states of a switch stack in OpManager

Listed below are the various member states displayed in OpManager. This can be viewed under the Stack switch details widget in the stack switch snapshot page.

State Description
Waiting Waiting for a limited time on other switches in the stack to come online
Progressing Master election or mismatch checks in progress
Added The switch is added to the stack
Ready The switch is operational
Removed The switch is removed from the stack
Provisioned The switch is not an active member of the stack.
Invalid The switch's state machine is in invalid state.
SDM Mismatch The SDM template configured on the master is not supported by the new member
Version Mismatch The OS version running on the master is different from the on this member
Feature Mismatch Some of the features configured on the master are not supported by this member
Master Re-Init Waiting for the new master to finish initialization after master switchover

Frequently asked questions

Why is my switch not discovered as a stack switch?


Why is data collection not happening in my stack switch?


Why is the switch sensor details widget empty?


Can I customize alert severity for monitoring my switch stacks?


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