diff options
Diffstat (limited to 'scripts/automation/trex_control_plane/stl/trex_stl_lib')
| -rwxr-xr-x | scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_packet_builder_scapy.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_packet_builder_scapy.py b/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_packet_builder_scapy.py index a868dbe8..aa002d59 100755 --- a/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_packet_builder_scapy.py +++ b/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_packet_builder_scapy.py @@ -782,10 +782,12 @@ class STLVmFixChecksumHw(CTRexVmDescBase): def __init__(self, l3_offset,l4_offset,l4_type): """ Fix Ipv4 header checksum and TCP/UDP checksum using hardware assist. - Use this if the packet header has changed or data payload has changed as it is necessary to change the checksum. - This instruction won't work on virtual interfaces only on Physical ports + Use this if the packet header has changed or data payload has changed as it is necessary to fix the checksums. + This instruction works on NICS that support this hardware offload. - Support the following packets + For fixing only IPv4 header checksum use STLVmFixIpv4. This instruction should be used if both L4 and L3 need to be fixed. + + example for supported packets Ether()/(IPv4|IPv6)/(UDP|TCP) Ether()/(IPv4|IPv6)/(UDP|TCP) @@ -802,6 +804,7 @@ class STLVmFixChecksumHw(CTRexVmDescBase): l4_type : CTRexVmInsFixHwCs.L4_TYPE_UDP or CTRexVmInsFixHwCs.L4_TYPE_TCP + see full example stl/syn_attack_fix_cs_hw.py .. code-block:: python |