Serpentine Grid Wide Bundle
A two-line bundle folds through a 3x2 section grid: each row flows left to right, and the bundle wraps from the right of one row to the left of the next. The wrap spans more than one column, so its return run loops through the clear inter-row gap with both lines kept fanned around every corner.
Mermaid source
%%metro title: Serpentine Grid Wide Bundle%%metro style: dark%%metro line: a | Line A | #4a90d9%%metro line: b | Line B | #e63946%%metro grid: s1 | 0,0%%metro grid: s2 | 1,0%%metro grid: s3 | 2,0%%metro grid: s4 | 0,1%%metro grid: s5 | 1,1%%metro grid: s6 | 2,1
graph LR subgraph s1 [Sec 1] %%metro exit: right | a, b n1[Alpha] n2[Beta] n1 -->|a,b| n2 end subgraph s2 [Sec 2] %%metro entry: left | a, b %%metro exit: right | a, b n3[Gamma] n4[Delta] n3 -->|a,b| n4 end subgraph s3 [Sec 3] %%metro entry: left | a, b %%metro exit: right | a, b n5[Epsilon] n6[Zeta] n5 -->|a,b| n6 end subgraph s4 [Sec 4] %%metro entry: left | a, b %%metro exit: right | a, b n7[Eta] n8[Theta] n7 -->|a,b| n8 end subgraph s5 [Sec 5] %%metro entry: left | a, b %%metro exit: right | a, b n9[Iota] n10[Kappa] n9 -->|a,b| n10 end subgraph s6 [Sec 6] %%metro entry: left | a, b n11[Lambda] n12[Mu] n11 -->|a,b| n12 end n2 -->|a,b| n3 n4 -->|a,b| n5 n6 -->|a,b| n7 n8 -->|a,b| n9 n10 -->|a,b| n11CLI command
nf-metro render examples/topologies/serpentine_grid_wide_bundle.mmd -o serpentine_grid_wide_bundle.svg