Configuring Port Buffering
Port buffering allocates storage for packets that cannot be immediately forwarded or processed on a port.
To display port buffer information (in percentages and bytes), use the port-buffer-show command. This command displays ingress and egress buffer utilization for each port:
CLI (network-admin@switch) > port-buffer-show
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port-buffer-show |
Display port buffer information. |
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time date/time: yyyy-mm-ddThh:mm:ss |
Time to start statistics collection. |
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start-time date/time: yyyy-mm-ddThh:mm:ss |
Start time of statistics collection |
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end-time date/time: yyyy-mm-ddThh:mm:ss |
End time of statistics collection |
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duration duration: #d#h#m#s |
Duration of statistics collection |
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interval duration: #d#h#m#s |
Interval between statistics collection. |
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since-start |
Specify to display port buffering since start. |
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older-than duration: #d#h#m#s |
Specify an older-than time to display port buffering. |
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within-last duration: #d#h#m#s |
Specify a within-last time to display port buffering. |
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port port-list |
The list of ports. |
CLI (network-admin@switch*) > port-buffer-show
port ingress-used-buf ingress-used-buf-val egress-used-buf egress-used-buf-val
---- ---------------- -------------------- --------------- -------------------
5 2% 150K 0% 0
9 0% 0 0% 0
13 0% 0 0% 0
17 0% 22.5K 0% 0
21 0% 0 0% 0
25 0% 0 0% 0
29 0% 0 0% 0
33 0% 0 0% 0
34 0% 0 0% 0
35 0% 0 18% 1.12M
37 0% 0 0% 0
41 0% 0 0% 0
45 6% 405K 0% 0
49 0% 0 0% 0
61 0% 0 0% 0
69 0% 0 0% 0
121 8% 567K 0% 0
129 0% 0 0% 0
130 0% 0 0% 0
Use the port-buffer-settings-modify command to enable the collection of port buffer information and to modify the logging interval and the internal storage space (called disk-space) allocated for the data collected for the command output above:
CLI (network-admin@switch) > port-buffer-settings-modify
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port-buffer-settings-modify |
Modify port buffer settings. |
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enable|disable |
Specify if you want to enable or disable the collection of port buffer information. |
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interval duration: #d#h#m#s |
Specify the interval for the logging of port buffer information. |
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disk-space disk-space-number |
Specify the amount of memory to be allotted for the collection of port buffering information. The default value is 50MB. |
For example, to set an interval of 2 minutes for logging port buffer information, use the command:
CLI (network-admin@switch) > port-buffer-settings-modify interval 2m
To display the port buffering settings, use the port-buffer-settings-show command:
CLI (network-admin@switch) > port-buffer-settings-show
switch: switch
enable: yes
interval: 2m
disk-space: 50M