Maximum number of sessions on a firewall

For the USG2000&5000 series, it supports a maximum of 2 million concurrent sessions in firewall mode or 1 million concurrent sessions in UTM mode.
For the USG6000 series, the maximum number of sessions varies with models:
USG6310/6320/6510-SJJ: 500,000
USG6330/6350/6360/6530: 3,000,000
USG6370/6380/6390/6550/6570: 4,000,000
USG6650/6660/6670: 10,000,000
USG6680: 12,000,000
NGFW Module: 10,000,000

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