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[baseimage]: fix mac address calculation on mellanox and centec platform #1166

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merged 1 commit into from
Nov 20, 2017
Merged

[baseimage]: fix mac address calculation on mellanox and centec platform #1166

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2 changes: 1 addition & 1 deletion files/image_config/platform/rc.local
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Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,7 @@ if [ -f /host/image-$sonic_version/platform/firsttime ]; then
SYSTEM_MAC_ADDRESS=$(ip link show eth0 | grep ether | awk '{print $2}')

# Align last byte of MAC if necessary
if [ "$SONIC_ASIC_TYPE" == "mellanox" -o "$SONIC_ASIC_TYPE" == "centec" ]; then
if [ "$SONIC_ASIC_TYPE" = "mellanox" ] || [ "$SONIC_ASIC_TYPE" = "centec" ]; then
last_byte=$(python -c "print '$SYSTEM_MAC_ADDRESS'[-2:]")
aligned_last_byte=$(python -c "print format(int(int('$last_byte', 16) & 0b11000000), '02x')") # put mask and take away the 0x prefix
SYSTEM_MAC_ADDRESS=$(python -c "print '$SYSTEM_MAC_ADDRESS'[:-2] + '$aligned_last_byte'") # put aligned byte into the end of MAC
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