The document discusses the implementation of a new property management system at eBay for improving visibility and control in network engineering. It addresses business needs such as measuring cache performance, caching dynamic responses, and securely connecting SSL certificates. It emphasizes the benefits of enhanced management capabilities, conditional behaviors, and improved performance metrics.

1. Increasing Control with
Property Manager
Steve Lerner, Senior Member of Technical Staff, Network Engineering
10/8/2014

2. The eBay Inc. Portfolio
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PLATFORM

3. The Old Days:
Config Manager
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Stuck With Old
Configs
No Activation
Manager
No Links To
Edge Hostnames
Flat Rules
Engine

4. Business Need #0: Visibility And Control
• Many new services being onboarded
• Constant config changes
• Demand for granular measurement
• Migration to HTTPS
• Want to keep reliance on Akamai pro-serve at a minimum
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5. Property Manager
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Clear List Of
Properties And
Edge Hostnames
Hierarchical Rules
Engine
Real Time Config
Validation And Error
Reporting

6. Get Property Manager!
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Upgrade Old
Service Order To
Get Property
Manager

7. Property Creation Assistant
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8. Key Default Settings
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Trueclient IP: Can
Your Netsec Group
Use This Layer 7
Header With User’s
IP?
Be Very Specific
About How Akamai
Caches, And Set
Downstream
Headers As Well

9. Review Defaults
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Compression- Do
You Want To Gzip
These Default
Content Types?
Do You Want To
Cache Objects With
These File
Extensions For Only
1 Day If Unable To
Validate?
If Cache Headers
Indicate Non-cacheable,
Do You
Want To Pass
Cache Headers
From Origin?

10. Top Tip: Use Blank Rule As Named Divider Bar
Insert Blank Rule
With Category Title
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11. Tiered Rulesets
Divider Bar Allows
Tiered Rulesets
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12. Business Need #1: Measure Cache Performance Of Webp
How can we measure performance of infrastructure strategy changes via Akamai?
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13. Webp #1: Main CP Code
Parent Rule:
First CP Code
Traffic Managed By
Property
IF File Extension = Webp
THEN Assign To CP
Code 318356
Child Rules Inherit
Parent Rule
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14. Webp #2: Mobile Apps
Child Rule:
User Agent = eBay Mobile
App
THEN
Assign to CP Code 318357
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15. Webp #3: Bots
Child Rule:
User Agent = bot
THEN
Assign to CP Code 318358
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16. Business Need #2: Cache A Dynamic Response
How can we improve performance of a dynamic object like an ad package,
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shopping cart, etc. via caching?

17. Caching Dynamic Responses
URL
• https://tms.paypal.com/RTPS?c=e9ef6176d2a6fb28f6ed4115a283a163&m=
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bcef2e6f0ed504b8dc9d6033346c0e13&f=myfunc
What It Does
• Creates a unique object for the session that is part of the transaction, ad,
or shopping experience
• Linked to a specific cookie
• The response object is able to change if the application changes the
query string variables c, m, or f
Business Goal
• Reduce origin database load
• Improve performance for end-user

18. Caching Dynamic Responses
Add Cookie Name To Cache
Key If Its There
Add Query String Data From
Named Query Strings To
Cache Key
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19. Caching Dynamic Responses
In Our Config Use Origin
Cache Control
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Example Dynamic Object:
/**/myfunc({"ETag":"09a947c2c45a714c296706b28ad010bf8"})

20. Business Need #3: Importing SSL Cert To Config
When building a secure configuration, how can I ensure that Akamai connects
securely and properly to my origin server with the new Akamai settings?
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21. SSL Certs: Option 1
Default
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22. SSL Certs: Option 2
Set These Correctly
Make Sure Your Cert Authority Is On
Akamai
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23. SSL Certs: Option 3-The Magic “Add” Button
Custom
Click “Add”
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24. SSL Certs: Option 3-The Magic “Add” Button
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Enter Your Https Origin URL
Click “Add Certificates”

25. SSL Certs: Option 3-The Magic “Add” Button
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Akamai Pulls Cert
Into Config

26. Business Need #4: Caching 100% Dynamic Things With
NO CERTAIN URL
“Image URL? We are no longer so primitive. We are 100% dynamic, there is no
image URL, our images come from an algorithm, there is no path.
However our domain is used to do lots of things: images, JSON, etc.
We want to cache JSON 5 mins and images 45 days”
https://image.edpn.ebay.com/tools/dap/resize.php?img=http%3A//i.ebayimg.com/00
/s/MzAwWDMwMA%3D%3D/z/tp0AAOSwq7JUDfqf/%24_35.JPG&size=85
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27. JSON
JSON Arrives File
Extension PHP In
This Application
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28. Dynamic Images
Match Off The
resize.php
Command
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29. Results?
Content
Download
58%
Reduction
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DSA
Enabled
Connect Time
78%
Reduction

30. eBay RUM View
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> 20th Percentile =
Significant
Performance Impact
Also Proof
That Image
Caching
Works!
View of All
Samples
Separated By
Deciles

31. Summary
Property Manager Benefits
• Increased visibility and control
• Conditional Behavior
• Activation Process
• SSL Setup
• A gazillion other things- check out the list
of Behaviors available
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32. THANK YOU
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Steve Lerner
Senior Member of Technical Staff, Network Engineering
slerner@ebay.com
212-495-9212
@lerner