ECS4310-18T/26T Hard Reset (b4 v1.1.1.8)

Use ES3528M, ES3528Mv2 console cable

Rate Limiting Burst Rate Calculation

This command has configured the rate to 50Mb, the burst is 327680

But, if we only know the rate we want, and how to decide the burst for this rate? So we need the formula as below...

burst = (inrate/8) *(5%~10%). (divided by 8 for bit to bytes conversion)

For the example of command line, the rate is 50Mb, so...

50(Mb)*1024 = 51,200(Kb)
51,200(Kb)*1024 = 5,242,800(bits)
5,242,800(bits)/8 = 6,553,600(Bytes)

6,553,600(Bytes) * 0.05 = 327,680

MPPS Calculation

Our product ES4524M-PoE, the port count is 22 x 10/100/1000 Base-T + 2 Gigabit Combo (RJ-45/SFP) = 24-port GE
1. Switching fabric: 24-port GE * 2 (duplex) = 48Gbps
2. Throughput: 24GE * 1,488,100 = 35.7Mpps
* Throughput @ 1000Base: 1,488,100 pps (64-byte packets)

And the key IC itself, the capability is 48Gbps. So it shows our product is wire-speed/non-blocking.

SNR descriptio

SNR or Signal to Noise Ratio:
Describes the ratio of usable data-signals on your line. You can associate the "signal" with the data traveling across your ADSL-line and the "noise" as the unwanted interference affecting the signal. The higher the number the better for this measurement.

6dB or below is bad and will experience no synch or intermittent synch problems
7dB-10dB is fair but does not leave much room for variances in conditions
11dB-20dB is good with little or no synch problems
20dB-28dB is excellent
29dB or above is outstanding

Besides, the downstream/upstream more higher, the snr value will more lower.

SMC289X Reset to Factory Default Setting

1. Reboot AP
2. Then input ESC key
3. [Boot]: c

'.' = clear field; '-' = go to previous field; ^D = quit

boot device : tffs:0
processor number : 0
host name :
file name : /fl/zz-img.bin /fl/aaa-img.bin <-- change it to other names
inet on ethernet (e) : 192.168.1.20:0xffffff00
inet on backplane (b):
host inet (h) : 192.168.1.123
gateway inet (g) :
user (u) : anonymous
ftp password (pw) (blank = use rsh): a@
flags (f) : 0x0
target name (tn) :
startup script (s) : factory
other (o) : ae

4. [Boot]:@ (Reboot)
5. when seeing the following message, open the IE and type the IP address 192.168.1.20

Attached TCP/IP interface to ae0.
Warning: no netmask specified.
Attaching network interface lo0... done.
Attaching to TFFS... Attaching to TFFS... done.

Wait for reset , 4..3..2..1..0

Loading /fl/aaa-img.bin...
Cannot open "/fl/aaa-img.bin".
Boot web up ...

6. Using FTP or TFTP to uplod the firmware again (Firmware file name is smc-img.bin)
7. Then input ESC
8. [Boot]: c

'.' = clear field; '-' = go to previous field; ^D = quit

boot device : tffs:0
processor number : 0
host name :
file name : /fl/aaa-img.bin /fl/smc-img.bin <-- change to the firmware file that uploaded
inet on ethernet (e) : 192.168.1.20:0xffffff00
inet on backplane (b):
host inet (h) : 192.168.1.123
gateway inet (g) :
user (u) : anonymous
ftp password (pw) (blank = use rsh): a@
flags (f) : 0x0
target name (tn) :
startup script (s) : factory
other (o) : ae


9. [Boot]:@ (Reboot)

10. It is the best to set the outdoor bridge to factory default system
command: reset configuration

Power Rating for EAP

SMC2552W -
20 dBm = ~ 100mW

SMC2555W -
11a, 17dBm= ~ 50mW
11g, 20dBm= ~ 100mW

SMC2552W-G2 -
20dBm= ~ 100mW

SMC2555W-AG2
11a, 17dBm= ~ 50mW
11g, 20dBm= ~ 100mW

SMC2890/91W -
11a, 18dBm = ~ 63.1mW
11g, 20dBm= ~ 100mW

SMCE21011
11b/g/n, 21dBm =~ 125.9mW
11a/n, 18dBm =~63.1mW

SMC2891 HPBW

Vertical: 24 degree

Horizontal: 18 degree