aluFabricDeviceStatsIndex serves as the index that uniquely identify the fabric device counter. R2.x and R3.x of Nokia 7705 support two entries of fabric device counters as followed: 1) Entry with aluFabricDeviceStatsIndex = 0 is a global device counter which counts all egress traffic from the fabric. This is the sum of all fabric port traffic, including ports to all MDAs and ports to any other intalled cards such as inactive CSM. 2) Entry with aluFabricDeviceStatsIndex = 1 is a fabric port counter which counts all egress traffic toward the MDA that has aluExtTmnxMDAFabricStatsEnabled being TRUE in AluExtTmnxMDAEntry. Starting with R4.0, Nokia 7705 system supports multiple fabric port counters. One entry for each MDA, plus one entry for the global counters. aluFabricDeviceStatsIndex is numbered as followed: - Entry with aluFabricDeviceStatsIndex = 0 is a global device counter which counts all egress traffic from the fabric. This is the sum of all fabric port traffic, including ports to all MDAs and ports to any other intalled cards such as inactive CSM. - Otherwise aluFabricDeviceStatsIndex > 0 indicates the MDA slot number tmnxMDASlotNum. These entries contain fabric port counters of egress traffic from the fabric device to the MDA with slot number specified by aluFabricDeviceStatsIndex. aluExtTmnxMDAFabricStatsEnabled must be TRUE on the MDA for the stats to be valid. If aluExtTmnxMDAFabricStatsEnabled is FALSE, all stats in the entry are set to 0. Starting with release 7.0 Nokia 7705 uses entry with aluFabricDeviceStatsIndex = 0xff = 255 to contain counts of all firewall security traffic egress from the fabric.