https://community.extremenetworks.com/t5/data-center-mlx-cer-ces/gre-tcp-mss-adjustment-on-mlx/m-p/52306#M5 Hello all. How can i adjust tcp mss on gre tunnel with MLX?<BR /> In documentation states:<BR /> Modifying the TCP MSS value based on the GRE tunnel MTU configuration<BR /> <BR /> For example, on ethernet interface 1/1 the TCP MSS value is configured to 1400 bytes. The ethernet interface 1/1 is a tunnel source for the GRE tunnel 100. If you configure the GRE tunnel MTU value to 700 bytes on ethernet interface 1/1, the software internally modifies the TCP MSS value to 660 bytes.<BR /> <BR /> So as i understand if i need mss 1360 i should just adjust mtu on a gre interface to 1400 and mss will be changed too.<BR /> <BR /> interface tunnel 1<BR /> tunnel mtu 1400<BR /> <BR /> Am i right?<BR /> Thanks in advance.<BR /> <BR /> Wed, 10 Oct 2018 18:42:00 GMT Mikhail_Elchin 2018-10-10T18:42:00Z https://community.extremenetworks.com/t5/data-center-mlx-cer-ces/gre-tcp-mss-adjustment-on-mlx/m-p/52306#M5 Hello all. How can i adjust tcp mss on gre tunnel with MLX?<BR /> In documentation states:<BR /> Modifying the TCP MSS value based on the GRE tunnel MTU configuration<BR /> <BR /> For example, on ethernet interface 1/1 the TCP MSS value is configured to 1400 bytes. The ethernet interface 1/1 is a tunnel source for the GRE tunnel 100. If you configure the GRE tunnel MTU value to 700 bytes on ethernet interface 1/1, the software internally modifies the TCP MSS value to 660 bytes.<BR /> <BR /> So as i understand if i need mss 1360 i should just adjust mtu on a gre interface to 1400 and mss will be changed too.<BR /> <BR /> interface tunnel 1<BR /> tunnel mtu 1400<BR /> <BR /> Am i right?<BR /> Thanks in advance.<BR /> <BR /> Wed, 10 Oct 2018 18:42:00 GMT https://community.extremenetworks.com/t5/data-center-mlx-cer-ces/gre-tcp-mss-adjustment-on-mlx/m-p/52306#M5 Mikhail_Elchin 2018-10-10T18:42:00Z https://community.extremenetworks.com/t5/data-center-mlx-cer-ces/gre-tcp-mss-adjustment-on-mlx/m-p/52307#M6 Yes,hope it worked.. Tue, 27 Nov 2018 08:32:00 GMT https://community.extremenetworks.com/t5/data-center-mlx-cer-ces/gre-tcp-mss-adjustment-on-mlx/m-p/52307#M6 Padmashree_Naga 2018-11-27T08:32:00Z