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fix(nvlink): Multicast group limit attribute, when creating a partiti… #2681

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rtamma-nv merged 1 commit into from
Jun 18, 2026
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fix(nvlink): Multicast group limit attribute, when creating a partiti… #2681

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7 changes: 4 additions & 3 deletions crates/nvlink-manager/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -62,9 +62,10 @@ use tracing::Instrument;
/// Default NMX-M instance identifier for credentials and client lookup when none is specified.
pub const DEFAULT_NMX_M_NAME: &str = "default";

/// Multicast groups limit for new NMX-C partitions. Assuming at most 2 partitions per tray and
// 18 tray default partitions, this is set to floor(1024 / (36+18)).
const NMX_C_PARTITION_MULTICAST_GROUPS_LIMIT: u32 = 1024 / (36 + 18);
/// Multicast groups limit for new NMX-C partitions. Must be a multiple of 4. Assuming at most 2
/// partitions per tray and 18 tray default partitions, this is floor(1024 / (36+18)) rounded down
/// to the nearest multiple of 4.
const NMX_C_PARTITION_MULTICAST_GROUPS_LIMIT: u32 = 16;

fn rack_id_from_chassis_snapshots(
chassis_snapshots: &[&ManagedHostStateSnapshot],
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