Home > Cisco, Hardware, N5K, Nexus > HOWTO: Nexus 5548UP Upgrade Process – v5.x to v7.x

HOWTO: Nexus 5548UP Upgrade Process – v5.x to v7.x

This will cover how to upgrade a Cisco Nexus 55548UP switch from NX-OS v5.2.1.N1.6 to v7.0.1.N1.1. 

The following assumptions are made:

  • The N5K in question is connected via “mgmt0” port to your management network
  • You have downloaded the appropriate files from Cisco, namely:
    • n5000-uk9-kickstart.7.0.1.N1.1.bin
    • n5000-uk9.7.0.1.N1.1.bin
  • You have a tFTP server such as tFTPd available and configured, with the above files in the fTFTP folder.

1) Login to the switch in question:

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2) Run a “dir” to verify there is sufficient free space for the new files.  We show about 1.2GB free based on the above information. 

3) Ensure that “mgmt0” has an IP as well as vrf “management” has a working route:

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vrf context management

  ip route 0.0.0.0/0 mgmt0 172.21.201.10

interface mgmt0

  ip address 172.21.201.202/24

Then verify your tftp host is reachable.  Ensure you specify the “vrf management” context:

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4) Copy the files to the bootflash:

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CDR-NEXUS5K-01# copy tftp://172.21.201.50/n5000-uk9-kickstart.7.0.1.N1.1.bin bootflash:n5000-uk9-kickstart-7.0.1.N1.1.bin vrf management

Trying to connect to tftp server……

Connection to Server Established.

TFTP get operation was successful

Copy complete, now saving to disk (please wait)…

clip_image012

CDR-NEXUS5K-01# copy tftp://172.21.201.50/n5000-uk9.7.0.1.N1.1.bin bootflash:n5000-uk9.7.0.1.N1.1.bin vrf management

Trying to connect to tftp server……

Connection to Server Established.

TFTP get operation was successful

Copy complete, now saving to disk (please wait)…

5) Run “install all” on the kickstart file:

clip_image014

CDR-NEXUS5K-01# install all kickstart bootflash:n5000-uk9-kickstart-7.0.1.N1.1.bin system bootflash:n5000-uk9.7.0.1.N1.1.bin

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After answering YES to continue, the switch will finish and then reboot.  As you’re connected via the mgmt0 IP and not the console, your PuTTY session will disconnect, and you won’t see the boot process. 

6) Log back into the switch:

7) Verify the upgrade with a “show version”:

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Note we’re now on v7.0(1)N1(1) as expected. 

I do not have a second unit in my test environment to confirm any dual switch / vPC configurations and how they upgrade.  My assumptions to watch for would be:

    • You may not be able to jump from v5.x to v7.x directly and reboot one  node at a time.  You may have to go to v5.x/v6.x/v7.x
    • You may need to perform your upgrade in a particular way. 

Theoretically though, you would simply login to the second switch after everything settles (maybe give it 5-15 minutes) and upgrade the other switch. 

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Categories: Cisco, Hardware, N5K, Nexus
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