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| author |   Kerim Gokarslan <kgokarsl@cisco.com> | 2018-04-02 16:38:24 -0700 |
|---|---|---|
| committer | Kerim Gokarslan <kgokarsl@cisco.com> | 2018-04-03 11:44:03 -0700 |
| commit | 5d582aada32e1c5f43601015660b7936013f5b30 (patch) | |
| tree | c5f5a7d0365b165284c6caa73d394a91b9286128 /nfvbench/traffic_gen/trex.py | |
| parent | 34c00544f7f7dbfa49bbdcd83eca2936b60826c7 (diff) | |
NFVBENCH-79 TRex latency stats requires at least 18B payload size
Change-Id: I4add34e853d5b5a37efc877eb183a1fdc622d78a
Signed-off-by: Kerim Gokarslan <kgokarsl@cisco.com>
Diffstat (limited to 'nfvbench/traffic_gen/trex.py')
| -rw-r--r-- | nfvbench/traffic_gen/trex.py | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/nfvbench/traffic_gen/trex.py b/nfvbench/traffic_gen/trex.py index 4c9f492..7d64f0f 100644 --- a/nfvbench/traffic_gen/trex.py +++ b/nfvbench/traffic_gen/trex.py @@ -142,14 +142,13 @@ class TRex(AbstractTrafficGenerator): def create_pkt(self, stream_cfg, l2frame_size): pkt_base = Ether(src=stream_cfg['mac_src'], dst=stream_cfg['mac_dst']) - # TRex requires minimum payload size 16B if stream_cfg['vlan_tag'] is not None: # 50 = 14 (Ethernet II) + 4 (Vlan tag) + 4 (CRC Checksum) + 20 (IPv4) + 8 (UDP) pkt_base /= Dot1Q(vlan=stream_cfg['vlan_tag']) - l2payload_size = max(max(64, int(l2frame_size)) - 50, 16) + l2payload_size = int(l2frame_size) - 50 else: # 46 = 14 (Ethernet II) + 4 (CRC Checksum) + 20 (IPv4) + 8 (UDP) - l2payload_size = max(max(64, int(l2frame_size)) - 46, 16) + l2payload_size = int(l2frame_size) - 46 payload = 'x' * l2payload_size udp_args = {} if stream_cfg['udp_src_port']: @@ -205,6 +204,8 @@ class TRex(AbstractTrafficGenerator): idx_lat = None streams = [] if l2frame == 'IMIX': + min_size = 64 if stream_cfg['vlan_tag'] is None else 68 + self.adjust_imix_min_size(min_size) for t, (ratio, l2_frame_size) in enumerate(zip(self.imix_ratios, self.imix_l2_sizes)): pkt = self.create_pkt(stream_cfg, l2_frame_size) streams.append(STLStream(packet=pkt, |