Archive for April, 2012

Indonesian AirFighter – HUT TNI AU 2012

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Indonesian AirFighter  – HUT TNI AU 2012 (C)2012
– F16 Figting Falcon
– Su 27 Flanker
– Hawk 100 /200
– CN235
– Hercules
PhotoCompetition dalam rangka HUT TNI AU 2012 by PAF Bandung

Location : Squadron Teknik 021 Halim Perdanakusuma
D300s | 80-200mm f/2.8 | 17-70mm f/2.8-4.5 | SB700

Heli Super PUMA – The Mighty One – HUT TNI AU 2012

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Heli Super PUMA – The Mighty One – HUT TNI AU 2012 (C)2012

PhotoCompetition dalam rangka HUT TNI AU 2012 by PAF Bandung

Location : Squadron Teknik 021 Halim Perdanakusuma
D300s | 80-200mm f/2.8 | 17-70mm f/2.8-4.5 | SB700

 

The Beauty Runaway Officer – Miss Dirgantara 2012

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Miss Dirgantara 2012 – HUT TNI AU 2012 (C)2012

PhotoCompetition dalam rangka HUT TNI AU 2012 by PAF Bandung

Tallent : Shelly Febrianty Nur Prahmi | Sandra
Location : Squadron Teknik 021 Halim Perdanakusuma
D300s | 80-200mm f/2.8 | 17-70mm f/2.8-4.5 | SB700

 

Control Plane vs Data Plane

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Control Plane (Routing Engine, Supervisor Engine) and Data Plane (Forwarding Plane, Forwarding Engine, Switch Fabric), in routing / switching technology always hard to explain the difference.

In new architecture of routing/switching hardware (router / L3 switch), we always found control plane module an data plane module attach, or maybe there is always routing engine and ASIC processor in one box router/switch.

Control Plane have role to take responsibility handle routing processing, from route update, exchange routing information, exchange label, update cost/weight in routing path and make routing table/routing cache. it’s usually consist of high power cpu to handle all the routing calculation.

Data Plane or Forwarding Plane have role to take responsibility handle forwarding traffic/packet based on label and lookup the routing information from routing table/cache, because of this large packet handle an ASIC processor needed to do packet forwarding.

 

Fun Photo Hunt with Lightshare Photography @Epicentrum

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Photo Fun Session with new friends from Lightshare Photography, thanx to Om Anto Dharsono and Om Andi Rasad for the invitation.

Tallent : Hans (male), Om Jack (male), Mayang, Eza, Dhea, Ani

Location : Epicentrum Epiwalk Rasuna

Nikon D300s | 55-200mm f/4.5 – 5.6 | SB700

Beauty Angel

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Talent : Wullan Ci ShInaya
Location : Studio Cafe Romeo de Brontos, Tebet Barat IX No. 18
Nikon D300s – 17 – 70mm f/2.8 – 4.5
5 Light Setup
2 Bowens Lamp
3 Golden Eagle Lamp
(2 Softbox – 1 Toplight Softbox – 2 Big Umbrella Reflector – 2 Beautydish – Barndoor w/ Gel)

Extending L2 Domain Switch using VPLS

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When you need a service from Network Operator to connecting 2 or more of your diferent sites in different location, you can request for this kind of services called VPLS / L2VPN.

VPLS (Virtual Private LAN Services) known as Metro Ethernet Services for Point to Multipoint Sites. what technology behind this kind of services? and for what this services actually defined?

VPLS / MetroEthernet can be used to expand and extending L2 Domain over L3 Routing. the basic technology that empowered this services is MPLS (MultiProtocolLabelSwitching), the MPLS technology can produce a services in L2 Domain and L3 Domain with separation of forwarding table into many of virtual forwarding table called VRF. MPLS topology consist of many PE (Provider Equipment) and several Core router called P Router. in MPLS Cloud, it’s used an IGP (internal gateway protocol) dynamic routing technology to connected all PE & P Router all together, and wrap it all using LDP or BGP Signalling. each path from one router to another router is created for label distribution and label switching which is called LSP (Label Switch Path). the LSP used to delivered the data from one router to another router, using vrf from one router can connected many of customer to use the same resources n clouds.

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VSAT Technology

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Typically a VSAT station consist of 2 major equipment – ODU(Outdoor Unit) which is consist of an antenna – feed horn – rft (buc – lnb) and pedestal (antenna mounting) and IDU (modem).

When a remote VSAT transmits data, first the modem will convert digital signal become a radio frequency signal, then it will convert to designated RF Band then Amplify using BUC. At reverse, when receive data the RF Signal receive using feed horn n pre amplify using LNB then convert to low frekuensi RF (IF) and decode using modem.

in Point 2 Point Topology, 2 Earth VSAT Station will communicate each other trough a transponder in satellite, one channel (carrier) frequency used to transmit and one channel (carrier) frequency used to receive. this topology used to call SCPC (Single Channel Per Carrier), one channel for receive and one channel to transmit.

 

in advance configuration commonly used today is VSAT IP, itu consist of one sentral earth station called HUB VSAT and many remotes site. this kind of topology called VSAT Star Topology, one as central and many remotes connected to the central. usually, for central earth station (HUB VSAT) it’s consist of a big antenna, a high power RFT (BUC/HPA – LNB/LNA), modem and several devices to organize and controlling all remotes connected. in the remotes side, it’s just like common vsat remote, it’s consist of small antenna, feed horn, RFT (BUC – LNB) and a modem.

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