This feature adds support for adjustment of MSS of TCP packets with SYN flag according to access/aggregation network in order to prevent fragmentation of upstream and downstream TCP packets using ISA-BB.
There are two modes of adjustment operations supported: TCP MSS Adjustment for ESM Hosts, and TCP MSS Adjustment for NAT Services.
This feature adds support for adjustment of the MSS size of TCP packets with SYN flag according to the access/aggregation network in order to prevent fragmentation of upstream and downstream TCP packets using ISA-BB diverted by IP/IPv6 filter actions.
The following ESM host types are supported:
Configuration steps
This feature provides MSS adjustment for TCP packets to be translated by NAT services.
Configuration steps
This command associate the MSS adjust group consisting of multiple ISAs with the routing context in which the application requiring TCP MSS adjust resides.
This command activates the adjustment of the TCP Maximum Segment Size (MSS) option of TCP packets matching the entry.
This command configures the Maximum Segment Size (MSS) adjustment for TCP packets.
The no form of the command disables adjusting tcp-mss values.