Upgrade Nexus 7k

[CSCO12550173]

Hi there experts,

we have to upgrade from 6.2(14) to NX 8.2(3)

and it's big leap between the version

there is a option to do it via ISSU or it has to be via cold boot

because this are dual sup devices so we want the less impact for the production environment

there is a document to follow or time to take to make this update?

or any recommendation prior to do this?

best regards

[Pronoy Dasgupta · Accepted solution]

Hello,

You might want to check out the release notes for this:

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/release/notes/cisco_nexus7000_release_notes_8x.html#pgfId-1505139

The lowest release from where you can do an ISSU to 8.2.(3) is 7.3(2)D1(1) version. From here you would need to track backwards:

7.2(0)D1(1) --> 7.3(2)D1(1):

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/7_x/nx-os/release/notes/7x_nx-os_release_note.html#pgfId-1329248

6.2(14) --> 7.2(0)D1(1):

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/7_x/nx-os/release/notes/72_nx-os_release_note.html#pgfId-1238260

As such your entire upgrade path (ISSU) would become:

6.2(14) --> 7.2(0)D1(1)7.2(0)D1(1) --> 7.3(2)D1(1) --> 8.2(3)

It is also advisable to review the release notes before making the decision to go through the multi-hop upgrade.

Thanks

HTH

Pronoy

[CSCO12550173]

thanks a lot for the guide to make the upgrade, very appreciated 

can i ask a last question, when someone make ISSU

it shows that sup standby is upgraded and then comes the switch to the primary

but what happens to the line cards of the chassis?

this linecards are reboot it or some kind of firmware upgraded, or going to reboot the linecard?

and what happens to the orphan ports vpc, some devices that are not dual attached, this devices are going to be down for a while?