In this post, I am going to describe Routers and Modems in a much more simple way along with their core differences and their examples. We all have an internet connection at home, therefore, it’s correct to say that we would have heard the words router and modem at least...
Nowadays, optical network technologies are becoming more and more popular. When it comes to optical networks, EPON and GPON technologies are the most discussed. This post will briefly describe the differences between these two technologies. Technical apecification Ethernet Passive Optical Network (EPON) is an Ethernet-based PON technology. It adopts the point-to-multipoint...
Issue Description FAQ-How user without domain name could access to AR router? Solution FAQ-How user without domain name could access to AR router? A: The common configuration is as following. radius-server template domain_test radius-server shared-key cipher %@%@&N=i)rz0;DEvm/AAPN|*KVzI%@%@ radius-server authentication 172.1.1.10 1812 weight 80 radius-server accounting 172.1.1.10 1813 weight 80 undo radius-server user-name domain-included aaa authentication-scheme domain_test authentication-mode radius accounting-scheme domain_test accounting-mode radius accounting start-fail...
Issue Description IPsec tunnel not being up between AR router and other vendor router Handling Process 1) I checked the IPsec configuration on both AR router and other vendor router , and at first Phase 1 wasn’t up and after matching all parameters on both sides , phase1 was UP but still tunnel is still down 2) We checked the “...
Now, I will start to explain all problems with connecting ONU. Before this post, I explained the most common problems – ODN (drop optical cable) and ONU. But, generally, there are 3 big possible problems: OLT, ODN, and ONU. In the next posts, I will detail explain all of...
Passive Optical Network (PON) mainly uses passive optical power splitters (couplers) to send information to users. Since the optical power divider is used to reduce the power, it is more suitable for short-distance use. PON (Passive Optical Network) means that ODN (Optical Distribution Network) does not contain any electronic devices and...
Today I want to show commands for work with ONTs. This is the first article about commands for work with ONTs. With these commands, you can find, add and see many important and useful information about ONTs, and use it for troubleshooting. I will show you commands and examplers...
Have you heard of CWMP? But I think you must have heard of TR-069. As many optical network service providers now use different brands of ONT(optical network terminal), the “OMCI” protocol based on the same brand is no longer applicable to the management of ONTs, so we need the...
Issue Description Alarm Information We can not login on the NE after node had been configured. Handling Process 1. checked the current alarms on the optical level on the neighbors. The optical level was ok. 2. connect through Navigator on the one P.Victoriei node, checked NE configuration and collect the "oplog" 3. Checked in U2000 the...
Issue Description one node B is connected to OSN 500 slot EFS8 port 1 for Data service, the port type is Access with default VLAN x, and this port is assigned to ELAN service VCTrunk1 type access default vlan also x. customer want to add a vlan 1xx in the port of...
Issue Description As shown in the following figure, CE8860 is connected to NE and Juniper. The CE8860 has a CRC increase on the port 25GE 1/2/3,、25GE1/2/11 and the peer port in J device. The other CE8860 ports receive no CRC, but the ports of devices which connected to CE8860 receive...
Issue Description As shown in Figure, an S7706 that runs V200R001C00SPC300 and V200R001SPH007 functions as the aggregation switch in the server area and serves as the gateway of all servers. Multiple VLANs are assigned on the S7700, multiple servers are deployed in each VLAN, and servers in different VLANs need...
