What is NSI5 (nonstandard I5)

Unfortunately, there isn't a standardized term "NSI5" (Non-standard I5) defined within the official 3GPP specifications for 5G mobile networks or any other relevant technical domain. Here are some possible interpretations based on available information:

1. Misinterpretation of NSI ID:

It's possible that "NSI5" is a misinterpretation or misspelling of "NSI ID" (Network Slice Instance Identifier). As explained earlier, NSI ID is a unique identifier assigned to a specific Network Slice Instance (NSI) in 5G networks. The number "5" might be mistakenly appended due to a typo or a misunderstanding.

2. Vendor-Specific Terminology:

There's a chance that "NSI5" is a vendor-specific term used by a particular network equipment vendor. Some vendors might utilize internal identifiers or naming conventions for network slice instances that differ from the standardized terminology employed in 3GPP specifications. Without additional context about the source where you encountered "NSI5," it's difficult to pinpoint the exact meaning.

3. Alternative Interpretation:

In the absence of a clear connection to 5G networks, there's a remote possibility that "NSI5" refers to something entirely different depending on the context. For instance, it could be an internal code or identifier used in a specific software application or system completely unrelated to network slicing.

Recommendations for Further Investigation:

If you're looking to understand the meaning of "NSI5," here are some suggestions:

• Review Source Material: If you encountered "NSI5" in a specific document or technical discussion, revisit the source material and see if there's any explanation or context clues that might shed light on its meaning.
• Vendor Inquiry: If "NSI5" is related to a particular network equipment vendor's solution, try contacting their technical support or referring to their documentation to see if they use such terminology for network slice instances.
• Search Networking Forums: Online forums or communities focused on networking technologies might offer insights if "NSI5" is a less common term used in a specific networking domain.