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-rwxr-xr-xscripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_client.py51
1 files changed, 38 insertions, 13 deletions
diff --git a/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_client.py b/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_client.py
index c1833754..acedf24f 100755
--- a/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_client.py
+++ b/scripts/automation/trex_control_plane/stl/trex_stl_lib/trex_stl_client.py
@@ -1284,7 +1284,7 @@ class STLClient(object):
**total** and per port statistics contain dictionary with following format.
- Most of the bytes counters (unless specified otherwise) are in L2 layer including the FCS. e.g. minimum packet size in 64 bytes
+ Most of the bytes counters (unless specified otherwise) are in L2 layer, including the Ethernet FCS. e.g. minimum packet size is 64 bytes
=============================== ===============
key Meaning
@@ -1303,21 +1303,34 @@ class STLClient(object):
.. _flow_stats:
- **flow_stats** contains dictionaries per packet group id (pg id). Each one with the following structure.
+ **flow_stats** contains :ref:`global dictionary <flow_stats_global>`, and dictionaries per packet group id (pg id). See structures below.
+
+ **per pg_id flow stat** dictionaries have following structure:
================= ===============
key Meaning
================= ===============
- rx_bps Receivd bytes per second rate
- rx_bps_l1 Receivd bytes per second rate, including layer one
+ rx_bps Received bytes per second rate
+ rx_bps_l1 Received bytes per second rate, including layer one
rx_bytes Total number of received bytes
rx_pkts Total number of received packets
rx_pps Received packets per second
- tx_bps Transmitted bytes per second rate
- tx_bps_l1 Transmitted bytes per second rate, including layer one
+ tx_bps Transmit bytes per second rate
+ tx_bps_l1 Transmit bytes per second rate, including layer one
tx_bytes Total number of sent bytes
tx_pkts Total number of sent packets
- tx_pps Transmit packets per second
+ tx_pps Transmit packets per second rate
+ ================= ===============
+
+ .. _flow_stats_global:
+
+ **global flow stats** dictionary has the following structure:
+
+ ================= ===============
+ key Meaning
+ ================= ===============
+ rx_err Number of flow statistics packets received that we could not associate to any pg_id. This can happen if latency on the used setup is large. See :ref:`wait_on_traffic <wait_on_traffic>` rx_delay_ms parameter for details.
+ tx_err Number of flow statistics packets transmitted that we could not associate to any pg_id. This is never expected. If you see this different than 0, please report.
================= ===============
.. _global:
@@ -1340,7 +1353,9 @@ class STLClient(object):
.. _latency:
- **latency** contains dictionary per packet group id (pg id). Each one with the following structure.
+ **latency** contains :ref:`global dictionary <lat_stats_global>`, and dictionaries per packet group id (pg id). Each one with the following structure.
+
+ **per pg_id latency stat** dictionaries have following structure:
=========================== ===============
key Meaning
@@ -1394,7 +1409,16 @@ class STLClient(object):
total_min Minimum latency measured over the stream lifetime (in usec).
================= ===============
+ .. _lat_stats_global:
+ **global latency stats** dictionary has the following structure:
+
+ ================= ===============
+ key Meaning
+ ================= ===============
+ old_flow Number of latency statistics packets received that we could not associate to any pg_id. This can happen if latency on the used setup is large. See :ref:`wait_on_traffic <wait_on_traffic>` rx_delay_ms parameter for details.
+ bad_hdr Number of latency packets received with bad latency data. This can happen becuase of garbage packets in the network, or if the DUT causes packet corruption.
+ ================= ===============
:raises:
None
@@ -2274,6 +2298,8 @@ class STLClient(object):
@__api_check(True)
def wait_on_traffic (self, ports = None, timeout = 60, rx_delay_ms = 10):
"""
+ .. _wait_on_traffic:
+
Block until traffic on specified port(s) has ended
:parameters:
@@ -2284,12 +2310,11 @@ class STLClient(object):
timeout in seconds
rx_delay_ms : int
- time to wait until RX filters are removed
- this value should reflect the time it takes
- packets which were transmitted to arrive
+ Time to wait (in milliseconds) after last packet was sent, until RX filters used for
+ measuring flow statistics and latency are removed.
+ This value should reflect the time it takes packets which were transmitted to arrive
to the destination.
- after this time the RX filters will be removed
-
+ After this time, RX filters will be removed, and packets arriving for per flow statistics feature and latency flows will be counted as errors.
:raises:
+ :exc:`STLTimeoutError` - in case timeout has expired