The set tcp-mss-sender and set tcp-mss-receiver commands in a firewall policy allow an administrator to adjust the Maximum Segment Size (MSS) of TCP packets.
This setting controls the largest payload size that a device can handle in a single TCP segment, ensuring that packets do not exceed the allowed MTU (Maximum Transmission Unit) along the network path.
● set tcp-mss-sender adjusts the MSS value for outgoing TCP traffic.
● set tcp-mss-receiver adjusts the MSS value for incoming TCP traffic.
This helps prevent issues with fragmentation and MTU mismatches, improving network performance and avoiding retransmissions.
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