According to RFC 791, every internet module must be able to forward a datagram of 68 octets without further fragmentation. This is because an internet header may be up to 60 octets, and the minimum fragment is 8 octets. The maximum size of IP packets is 65535 bytes. The range of MTU values allowes for the MTU configuration parameter is 68 to 65535.
Signed-off-by: nickcooper-zhangtonghao <[email protected]> --- vswitchd/vswitch.ovsschema | 5 +++-- vswitchd/vswitch.xml | 6 +++++- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/vswitchd/vswitch.ovsschema b/vswitchd/vswitch.ovsschema index b04d360..f63ebfc 100644 --- a/vswitchd/vswitch.ovsschema +++ b/vswitchd/vswitch.ovsschema @@ -1,6 +1,6 @@ {"name": "Open_vSwitch", "version": "7.14.0", - "cksum": "3374030633 22987", + "cksum": "4218713702 23028", "tables": { "Open_vSwitch": { "columns": { @@ -326,7 +326,8 @@ "mtu_request": { "type": { "key": {"type": "integer", - "minInteger": 1}, + "minInteger": 68, + "maxInteger": 65535}, "min": 0, "max": 1}}, "error": { diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml index d10fc1d..15ef954 100644 --- a/vswitchd/vswitch.xml +++ b/vswitchd/vswitch.xml @@ -2392,7 +2392,11 @@ type='{"type": "integer", "minInteger": 1}'> <p> Requested MTU (Maximum Transmission Unit) for the interface. A client - can fill this column to change the MTU of an interface. + can fill this column to change the MTU of an interface. According to + RFC 791, every internet module must be able to forward a datagram of + 68 octets without further fragmentation. The maximum size of IP packets + is 65535 bytes. The range of MTU values allowes for the mtu_request + parameter is 68 to 65535. </p> <p> -- 1.8.3.1 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
