Go Somewhere

Tak ada jam 8
Tak ada deadline pekerjaan
Tak ada laporan
Tak ada telpon
Tak ada jam 5
Tak ada Jakarta

Dan diantara kita juga masih tak ada jawaban

Pulau Sempu
21 Nov 2014

Melankolia Kupang

Aku ingin engkau mengingatku...

Seperti Pulai Semau melindungi teluk kupang dari gelombang pasang

Memelukmu erat seperti bibir pantai Lasiana sampai Tenau mengait erat Laut Sawu

Membuatmu tertawa lepas seperti bocah Oesapa bermain sepakbola pantai

Menyelimutimu sehangat matahari timor

Dan memaafkanmu seperti melupakan untuk pergi ke kupang barat untuk melihat fajar

Viva Frans Seda

Rate Limit in Cisco Router (include explanation)

     This week, i've been really busy with my own backhaul. It because i had to  simpelize my network and routing policy. It sounds easy, but it is a bit difficult to organize my network. Once you make changes, it will spread massive affect to the whole network. So, i need to make my step really carefully and it have to like "one shoot one goal" or you can call it an efective way.

     The former network engineer, didn't leave me with even single one data. So, I have to analyze it first before i make any changes. Once upon a time, i had to change the bandwidth capacity for my internal user, which is my own office. Cause the network being deploy, and the bandwidth capacity was not enough to handle the network, it makes the internet slower. So, i decided to increase the bandwidth capacity. Since i use the cisco router, i prefer to use the rate-limit.

So, i have to increase my office bandwidth capacity 7,5 Mbps for download and upload. Here are the command line :

First you have to make access-list to catch the ip address,

access-list 8 permit ip any 192.168.1.1 0.0.0.255


Inbound

Router(config-subif)#rate-limit input access-group 8 ?
<8000-2000000000>  Bits per second
 ------------------------------------------------------------------------------------

Router(config-subif)#rate-limit input access-group 8 7500000 ?
<1000-512000000>  Normal burst bytes

normal burst = configured rate * (1 byte)/(8 bits) * 1.5 seconds 
normal burst = 7500000 * (1 byte)/(8 bits ) * 1,5 = 1406250 bytes
 --------------------------------------------------------------------------------------

Router(config-subif)#rate-limit input access-group 8 7500000 1406250 ?
<2000-1024000000>  Maximum burst bytes 

extended burst = 2 * normal burst 
extended burst = 2 * 1406250 = 2812500 bytes
-------------------------------------------------------------------------------------------------------------

Router(config-subif)#rate-limit input access-group 8 7500000 1406250 2812500 conform-action transmit exceed-action drop


Outbound

Router(config-subif)#rate-limit output access-group 8 7500000 1406250 2812500 conform-action transmit exceed-action drop


What is burst ?

"Any relatively high-bandwidth transmission over a short period. For example, a download might use 2 Mbit/s on average, while having "peaks" bursting up to, say, 2.4 Mbit/s". 




- Wikipedia.org -
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