IOS Upgrade- eFSU

[Praveen Kumar]

I upgraded the 6509 V-E in the lab from 122-33.SXI3 to 122-33.SXI9. There was a 4 minute outage on the line card, after I ran the commannd "

issu runversion". I wanted to know why this happened and if there is a way to upgrade seamlessly (no outage on the line card) Thanks

[Reza Sharifi]

Are the Sups configured in SSO mode?  There should not that much of down time if SSO is configured.  The fail over from one Sup to the other is sub-seconds

HTH

[Praveen Kumar]

Thanks for your response.

Yes SSO is enabled.

[Reza Sharifi]

With eFSU the upgrade is usually seamless (sub-second).  Now I am wondering if there was an issue with the IOS.

[krahmani323 · Accepted solution]

Hi Praveen, Reza,

From the 6500 conf guide - eFSU part there is some outage time considerations depending on the nature of the module and its memory (if the module supports eFSU preload or not).   

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/issu_efsu.html#wp1095791

=============================

The following modules support eFSU preload:

–WS-X67xx modules

–SIP-400 and SIP-600

All other modules undergo a hard reset at switchover, and the software image loads after the module restarts. 

Before the "issu runversion" the below command should then gives an indication about the impact...

Router# show issu outage slot all 

Slot # Card Type                               MDR Mode    Max Outage Time

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

     1 CEF720 8 port 10GE with DFC   WARM_RELOAD        300 secs

     2 96-port 10/100 Mbps RJ45          RELOAD             360 secs

           .....

=======================================

It is just an idea...In my for all the eFSU (especially in VSS) I perfromed, I always had a minimal impact..

As asked by Reza, the 6500 sups were in SSO configured/operational mode..So maybe the model of your line card impacted by the 4-minutes impact was not supporting eFSU preload ?

Best regards.

Karim

[Reza Sharifi]

Good points Karim (+5)

Thanks,

Praveen,

Can you post "sh module"?

Reza

[Praveen Kumar]

I'll post show module output tomorrow.

[Praveen Kumar]

Mod Ports Card Type                                   Model             

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

  1   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-TX    

  2   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-45AF  

  3   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-45AF

  4   16  CEF720 16 port 10GE                    WS-X6716-10GE

  5    5  Supervisor Engine 720 10GE (Active)    VS-S720-10G 

  6    5  Supervisor Engine 720 10GE (Hot)       VS-S720-10G

  7   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-45AF

[Reza Sharifi]

Since all your modules are in the 65xx series, most likely as per the link Karim provided, the went under a hard reset