Cisco 7606-s IOS upgrade from 12.x to 15.x

[nellkoni]

Greetings!

My client wants to upgrade IOS.

Since I havent done any "major version upgrades", I would like to get some advice on this.

Cisco 7606-s with 2 SUP modules(RSP720-3C-GE)

Current OS Ver. is 12.2(33)SRE1

Cisco's suggested IOS version is "15.5.3S9a"

Can I jump straight to suggested version?

or

Do I have to do some steps of upgrade?

Thanks.

Kwang Young Ko

[balaji.bandi · Accepted solution]

I believe yes you can go direct upgrade to 15.X (hope is this single Sup card ?)

here are the upgrade and release  notes document ( read carefully for the requirement)

https://www.cisco.com/c/en/us/td/docs/routers/7600/Hardware/15_0s/7600_hwd.html

upgrade document :

https://www.cisco.com/c/en/us/td/docs/routers/7600/ios/15S/configuration/guide/7600_15_0s_book/efsuovrw.html#82005

[nellkoni]

6 moduels are installed but only using mod. 1, 5, and 6

Mod  Ports  Card Type                                                           Model

---   ----   ---------------------------------------    ---------------------

   1     48     48-port 10/100/1000 RJ45 EtherModule            WS-X6148A-GE-TX

   2       0     2 port adapter Enhanced FlexWAN                      WS-X6582-2PA

   3       0     2 port adapter Enhanced FlexWAN                      WS-X6582-2PA

   4       0     2 port adapter Enhanced FlexWAN                      WS-X6582-2PA

   5       2     Route Switch Processor 720 (Active)                   RSP720-3C-GE

   6       2     Route Switch Processor 720 (HOT)                     RSP720-3C-GE

[balaji.bandi]

suggest the procedure should be good for your upgrade.

Backup the config out of the box. collect the information as much you can before the upgrade. - so it will be useful for compare post-upgrade,

as suggested read the caveats in the release notes and requirement.

[nellkoni]

Thank you for your advice!!

I think it all went smooth from 12.2(33)SRE1 to 15.53S10.

"show version" shows that the OS had been upgraded.

but as for the modules, I am not quite sure that I have upgraded everything fine.

because Module 1's SW showed "(sierra_main)" and I have no clue what is means.

(Due to security reasons, I couldn't copy and paste it. So I had to type it out)

7606-S# show mod

Mod  Ports  Card Type                                                           Model                              

---   ----   ---------------------------------------    --------------------- 

   1     48     48-port 10/100/1000 RJ45 EtherModule            WS-X6148A-GE-TX       

   2       0     2 port adapter Enhanced FlexWAN                      WS-X6582-2PA               

   5       2     Route Switch Processor 720 (Active)                   RSP720-3C-GE               

Mod       HW       FW                      SW                     Status

-----    -----    -------------    -------------   --------

   1         4.1        8.4(1)                  (sierra_main       OK

   2         2.3        15.5(3)S10          15.5(3)S10         OK

   5         5.2        12.2(33r)SRB       15.5(3)S1           OK

7606-S# show module version

Mod  Ports  Model                              Versions

---   ----   -------------------     -------------------------------------

   1     48     WS-X6148A-GE-TX        HW : 4.1

                                                          FW : 8.4(1)

                                                          SW : (sierra_main_dev)1.3.28

   2       0     WS-X6582-2PA              HW : 2.3

                                                          FW : 15.5(3)S10

                                                          SW : 15.5(3)S10

   5       2     RSP720-3C-GE              HW : 5.2

                                                          FW : 12.2()33r)SRB

                                                          SW : 15.5(3)S1

                                                          SW1 : (sierra_main_dev)1.3.28

Questions

1) Did I upgrade the OS right?

2) What does (sierra_main_dev) mean?

3) If that is a problem, What do I have to do?

Thanks,

Nell

[balaji.bandi]

As per my knowledge that is one of SW versions released, ( you do not need to worry as long as the device working as expected as before) - I mean before the upgrade and after the upgrade .

Do you see any issue after the upgrade?

Another note to understand myself, was before you have 2 Sup, but now I only see 1 Sup ? are you sure the upgrade has taken a good path and installed correctly on all SUP?

[nellkoni]

All the modules are working fine as they were before. I guess "Sierra_main_dev" is a dev. OS i assume.

I didn't experience any issue after the upgrade. (Actually there was one but wan't a big deal)

   - IOS file from slavebootdisk was deleted some how

As for the missing modules, since I couldn't copy and paste,  I omitted to type it out. 

All the modules from 1 to 6 came up just fine :D

thank you for your advise! :D

[balaji.bandi]

In that, you not required to worry much.. all good here.