1. Import cacti_data_query_mikrotik_simple_queue.xml (login cacti as administrator)
2. Import cacti_data_template_mikrotik_simple_queue.xml
3. Import cacti_graph_template_mikrotik_simple_queue.xml
4. Import cacti_host_template_mikrotik_queue.xml
5. Copy ipacmikro.xml to /usr/share/cacti/resource/snmp_queries/ on the Cacti server (ubuntu server).
6. and ser permission 0755

Files

http:/www.rmalekghasemi.ir/file/mikrotik queue.rar

Reference

http://www.kurniawan.staff.ugm.ac.id/index.php?page=14

http://srijit.com/how-to-add-in-prtg-mikrotik-static-queues-for-monitoring-bandwidth-utilisation/

http://www.rmalekghasemi.ir/file/SXT_lite_repair_instructions.pdf

Mtu IP and Frame Size

I am a little bit confused about one fact. According to the specification, the ethernet frame maximum size is 1518 bytes, and the IPv4 packet size Length field in an IPv4 header can be up to 65535 bytes.

So my question is: how is it possible to have an IP packet maximum length larger than an ethernet frame, as everyone knows IPv4 packets encapsulated into ethernet frames

How Router Works

Typically size of the packet sent over PPP link is reduced due to overhead. MP can be used to transmit and receive full frame over single ppp link. To make it work the Multilink Protocol uses additional LCP configuration options Multilink Maximum Received Reconstructed Unit (MRRU)

To enable Multi-link PPP over single link you must specify MRRU (Maximum Receive Reconstructed Unit) option. If both sides support this feature there are no need for MSS adjustment (in firewall mangle). Study shows that MRRU is less CPU expensive that 2 mangle rules per client. MRRU allows to divide packet to multiple channels therefore increasing possible MTU and MRU (up to 65535 bytes)

Under Windows it can be enabled in Networking tag, Settings button, “Negotiate multi-link for single link connections”. Their MRRU is hard coded to 1614.

http://www.rmalekghasemi.ir/file/700px-IP_final.png