Algorithm Principle: UPCC MS/UE IP Address Manual Part Three

carryout  Silver  (1)
1 year 3 months ago  View: 4054  Reply: 10

In the second issue, we have introduced roles of each module of the UPCC in processing IP addresses. In this issue, we will introduce the specific algorithms applied in the main modules that process MS/UE IP addresses: SDU (session distribution) and SPU (session binding).

In addition to the MS/UE IP address, other parameters such as the APN and PCEF group ID can also be used as keywords for session distribution and binding or conflict judgment. At present, the UPCC supports multiple combinations of IP addresses and these parameters, as shown in Figure 1:

20161029085941021001.png

As shown in figure above, every solution has its own algorithm for session distribution and binding and different application scenarios and configurations. The following uses the simplest IP-based session distribution and binding solution as an example to illustrate its algorithm, application scenario, and configuration:

Description:

Only MS/UE IP addresses are used as the condition for session binding.

Constraints:

The MS/UE IP addresses of sessions must be unique in all the PCEFs. To be specific, an IP address can be assigned to only one Gx session. See Figure 1.

20161029090120228001.png

Related Configuration:

20161029090200819001.png
Algorithm:

For Gx sessions: If both the IPv6 address prefix length and value of two sessions are the same, the two sessions are considered to be matched.

For example, the following IPv6 addresses are assigned to Gx sessions:
20161029090304076001.png

For other solutions, download the attachments.

 

This post was last edited by Tony.Cheng at 2016-10-29 09:10.

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Saravanan.S  Gold 
1 year 2 months ago
You have a winner’s attitude.
carryout  Silver 
1 year 2 months ago
Saravanan.S 发表于 2016-11-28 22:14 You have a winner’s attitude.
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Saravanan.S  Gold 
1 year 2 months ago
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Arvi  Silver 
1 year 2 months ago
Very good topic on session binding
Nesapriyan  Junior 
1 year 2 months ago
Nice
carryout  Silver 
1 year 2 months ago
Thank you for your attention, my new friend
yasir  Junior 
1 year 26 days ago
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carryout  Silver 
1 year 18 days ago
yasir 发表于 2017-1-26 15:22 very interesting and helpful
Thank you. It's my pleasure to help you!
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10 months 9 days ago
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