How does a modular Cisco Nexus 9000 Series Switch handle an in-service software (ISSU) upgrade as compared to a nonmodular switch?

The correct answer is C. An ISSU on modular switches can be done without traffic disruption due to dual supervisor. Modular Cisco Nexus 9000 Series Switches typically include dual supervisor engines, enabling In-Service Software Upgrades (ISSU) with minimal or no traffic disruption. One supervisor can remain active while the other is upgraded, supporting high availability. In contrast…

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Question

Options

AModular switches need manual intervention for an ISSU, and nonmodular switches upgrade
BModular switches require a complete halt of traffic on all modules during an ISSU.
CAn ISSU on modular switches can be done without traffic disruption due to dual supervisor
DNonmodular switches support rolling upgrades, and modular switches do not.

How the community answered

(35 responses)

A
3% (1)
B
3% (1)
C
94% (33)

Explanation

Modular Cisco Nexus 9000 Series Switches typically include dual supervisor engines, enabling In-Service Software Upgrades (ISSU) with minimal or no traffic disruption. One supervisor can remain active while the other is upgraded, supporting high availability. In contrast, nonmodular switches often lack dual supervisors, making ISSU either unsupported or requiring traffic disruption.

Topics

#ISSU#Cisco Nexus 9000#Modular Switch Architecture#High Availability

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