GTP performance
There are independent Receive and Transmit queues for gtp-u process. These queues are and their associated resources are initialized when the gtp-enhance-mode is enabled.
CLI changes under system npu
gtp-enhance-mode
config system npu
set gtp-enhance-mode {enable|disable}
end
|
This configuration requires a reboot of the device to initialize the changes. |
gtp-enhance-cpu-range
This is used to set the CPUs which can process the GTP-U packet inspection.
config system npu
set gtp-enhance-cpu-range {0|1|2}
end
| Option | Description |
|---|---|
| 0 | Inspect GTPU packets by all CPUs |
| 1 | Inspect GTPU packets by primary CPUs |
| 2 | Inspect GTPU packets by secondary CPUs |
Diagnose commands
diagnose npu np6 hbq-stats {all|np xx}
Used to see the GTP-U packet counter by all NP or the corresponding np.
diagnose npu np6 hbq-stats-clear all /np xx
Used to clear the GTP-U packet counter by all NP or the corresponding np.
Verifying the enhance-mode is disabled
Before execute the test or enable/disable the gtp enhance, first check the gtp-enhance-mode status as in the example below:
config system npu
get
gtp-enhance-mode: disable
gtp-enhance-cpu-range: 0
end
If the gtp-enhance-mode is disable, use the command diagnose npu np6 hbq-stats all.
The output will be similar to below:
# diagnose npu np6 hbq-stats all
Total :0
If the gtp-enhance-mode is enable, use the command diagnose npu np6 hbq-stats all
The output will be similar to below:
# diagnose npu np6 hbq-stats all
cpu_ 0:0
cpu_ 1:0
cpu_ 2:0
cpu_ 3:0
cpu_ 4:0
cpu_ 5:0
cpu_ 6:0
cpu_ 7:0
cpu_ 8:0
cpu_ 9:0
cpu_10:0
cpu_11:0
cpu_12:0
cpu_13:0
cpu_14:0
cpu_15:0
cpu_16:0
cpu_17:0
cpu_18:0
cpu_19:0
cpu_20:0
cpu_21:0
cpu_22:0
cpu_23:0
cpu_24:0
cpu_25:0
cpu_26:0
cpu_27:0
cpu_28:0
cpu_29:0
cpu_30:0
cpu_31:0
cpu_32:0
cpu_33:0
cpu_34:0
cpu_35:0
cpu_36:0
cpu_37:0
cpu_38:0
cpu_39:0
Total :0
Sometimes, when loading the new configure file, and the new configure file does not match the old configure file,
the gtp-enhance-mode status will be confused.
You can see :
#config system npu
#get
gtp-enhance-mode: enable
but you can also see that
diagnose npu np6 hbq-stats all
Total :0
This means the gtp-enhance-mode is actually set to disable.
The inverse is also possible, when you see
#config system npu
#get
gtp-enhance-mode: disable
but you also see that
# diagnose npu np6 hbq-stats all
cpu_ 0:0
...
cpu_39:0
Total :0
This means the gtp-enhance-mode is actually set to enable.
If these combinations occur, just run the command below:
config system npu
set gtp-enhance-mode enable
end
or
config system npu
set gtp-enhance-mode disable
end
Once this is done, reboot the device to let the 2 statuses match.