Cisco Cisco Nexus 5010 Switch Installation Guide
37
Cisco Nexus 5500 Series NX-OS Software Upgrade and Downgrade Guide, Release 7.0(8)N1(1)
Minimizing the Impact of a Disruptive Upgrade
Minimizing the Impact of a Disruptive Upgrade
A non-ISSU upgrade is a disruptive upgrade that results in the reload of the Cisco Nexus device and the
Cisco Nexus Fabric Extenders. The reload is a cold reboot that brings down the control plan and the data
plane. The reload causes disruptions to the connected servers and hosts. When a vPC is deployed in the
access layer, it is possible to minimize the impact of a non-ISSU upgrade. When one of the vPC switches
is being reset during the upgrade process, all the server traffic can flow through its vPC peer.
Cisco Nexus Fabric Extenders. The reload is a cold reboot that brings down the control plan and the data
plane. The reload causes disruptions to the connected servers and hosts. When a vPC is deployed in the
access layer, it is possible to minimize the impact of a non-ISSU upgrade. When one of the vPC switches
is being reset during the upgrade process, all the server traffic can flow through its vPC peer.
Upgrading a Direct vPC or a Single-Homed FEX Access Layer
through
show topologies in which the access layer includes a vPC configuration to
hosts or downstream switches.
Figure 16
Hosts Directly Connected Directly to vPC Peers
Nexus 5020
Nexus 5010
Nexus 2000
Nexus 2000
Aggregation
237883