Read the equation
Divides used bandwidth by available bandwidth. The two values need compatible units and the available value must be nonzero.
Terms & definitions
The recovered passage does not supply a separate symbol table. Read the source context for the notation used in this version; familiar letters may carry different meanings in other builds.
How it works
Read U_2 as the quantity being defined or updated by this relation.
Forms a ratio or division. A zero denominator needs an explicit exclusion or handling rule.
Use this version’s variable definitions and update order. The same symbol may be assigned a different meaning in another build.
Assumptions & limits
Source recovery establishes that the expression appears in this record. Its mathematical validity, implementation behavior, and interpretation must be assessed separately. See the linked source and research notes for the checks available for this version.
Original context
Read the surrounding source passage
Frames, MAC, error correction.
1. Frame Loss:
FL = \frac{F_{\text{lost}}}{F_{\text{sent}}}
2. Link Utilization:
U_2 = \frac{B_{\text{used}}}{B_{\text{avail}}}
3. Cost:
\text{Cost}_2 = a_2 FL + b_2 U_2
4. Full-layer global update applies here identically.
⸻
Layer 3 — Network Layer (N3)Exact original notation
U_2 = \frac{B_{\text{used}}}{B_{\text{avail}}}Related builds
Sources & provenance
U_2 = \frac{B_{\text{used}}}{B_{\text{avail}}}