Cisco 4507-R hang issue

[HCL Support]

Hi,

We have Cisco 4507-R installed at customer site which got hang twice and became normal after getting booted.

I have analyzed show tech-support for this switch after reboting but not found relevant logs for hang issue,

Attaching here show tech-support for this switch,

confirm us the issue in this case.

Regards,

Ashutosh

[Eugene Khabarov]

You IOS version is outdated (12.2.18-EW), I suggest you to upgrade to at least to 12.2.18-EW7.

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[Leo Laohoo]

Wow.  That's an old IOS.  What supervisor card are you using?

[HCL Support]

Hi,

This is having SUP V,

------------------ show module ------------------

　

Chassis Type : WS-C4507R

Power consumed by backplane : 40 Watts

Mod Ports Card Type Model Serial No.

---+-----+--------------------------------------+------------------+-----------

1 2 1000BaseX (GBIC) Supervisor(active) WS-X4516 JAB0818093U

2 2 1000BaseX (GBIC) Supervisor(standby) WS-X4516 JAB08180939

3 6 1000BaseX (GBIC) WS-X4306-GB JAE0822JXZA

4 6 1000BaseX (GBIC) WS-X4306-GB JAE0821JENT

5 24 10/100/1000BaseTX (RJ45) WS-X4424-GB-RJ45 JAB081704HN

6 24 10/100/1000BaseTX (RJ45) WS-X4424-GB-RJ45 JAB081704LG

7 6 1000BaseX (GBIC) WS-X4306-GB JAE085020KS

Also confirm if any other issue finding here other than IOS.

Ashutosh

[Leo Laohoo]

Upgrade your IOS.

[Eugene Khabarov]

That's exactly I've suggested :-)

[Leo Laohoo]

That's exactly I've suggested :-)

And you did. 

Unfortunately, "upgrade your IOS" doesn't really go down well to some.

I've got a strange feeling the issue was caused by an OLD IOS plus the switch has been running for years.

[nkarpysh]

Hey,

There are several possible causes for this:

SW ones:

- memory leak

- L2 loop affecting switch resource

- other SW defect

HW:

- some HW problem kicking switch to ROMMON and keeping there thus looking as it freezed

As Guys advised you - upgrade first. If reoccured on the newset IOS - consider replacement.

Nik,