F5 Hardware/TAC Support - TMOS 201

Question 1

What does EUD stand for?

Answer 1

End user diagnostics

Question 2

What is askf5.com?

Answer 2

1) Support from F5
2) Open TAC cases
3) iHealth
4) Knowledge center
5) Downloads
6) Licensing

Question 3

What is EUD?

Answer 3

A set of diagnostic tests that provides reports about various components in the F5 hardware.

Question 4

True or false: You can run EUD on a production box.

Answer 4

False
Only done if advised by F5 TAC.

Question 5

True or false: Running a lower EUD version is ok.

Answer 5

False, doing so may result in false positive results.

Question 6

Where is the EUD report results located?

Answer 6

Depending on F5 platform, it can be located:
1) Root directory /eud.log
2) /shared/log/eud.log
3) /shared/TestRPT.log

Question 7

What does a green solid light on the hardware LED mean?

Answer 7

F5 device is Active in an HA pair and operating normally.

Question 8

What does a yellow solid light on the hardware LED mean?

Answer 8

1) F5 device is Standby in an HA pair
or
2) Running in an impaired mode. This condition is not significant enough to to be considered an alarm.

Question 9

What is a yellow blinking light on the hardware LED mean?

Answer 9

The system is not under host control. Causes may be host is halted, software, or hardware problems.

Question 10

When opening a service request, what information is needed?

Answer 10

1) User login
2) Serial number of device
3) Choose severity level
4) Registration key*
*Not always needed.

Question 11

What information can be provided to TAC in troubleshooting?

Answer 11

1) qkview
2) /var/log files
3) core files - /shared/core
4) UCS archives
5) packet traces

Question 12

When opening a support ticket with F5 TAC, what are the severity levels?

Answer 12

1 - Urgent: site down
2 - High: site at risk
3 - Medium: performance degraded
4 - Low: general assistance

Question 13

What is the link to F5’s bug tracker?

Answer 13

support.f5.com/csp/bug-tracker

Question 14

Where can you view hardware statistices on the F5?

Answer 14

Statistics > Analytics

Question 15

What is the link to the iHealth portal?

Answer 15

https://login.f5.com/resource/login

Question 16

What is needed to run EUD?

Answer 16

1) Console access
2) A copy of the latest EUD code version
3) Boot from USB flash drive or USB cd/dvd drive

Question 17

What do the following messages mean?
60S unit going active
60M unit going active

Answer 17

The BIG-IP system transitioning from standby to active in 60 seconds (S) or 60 minutes (M).

Question 18

What do the following messages mean?
60S unit going standby
60M unit going standby

Answer 18

The BIG-IP system transitioning from active to standby in 60 seconds (S) or 60 minutes (M).

Question 19

Where in the configuration utility can you view/start/stop a daemon such as big3d or sshd?

Answer 19

System > Services

Question 20

Where in the configuration utility can you configure ntp, dns, etc?

Answer 20

System > Configuration > Device