Shahed Israr

Shahed Israr is a Network Engineer specializing in GPON, FTTH, and telecom access network technologies. With hands-on experience in Huawei OLT and ONT configuration, U2000 NMS deployment, iMaster NCE-FAN Lite management systems, firmware upgrades, and advanced network troubleshooting, he helps Internet Service Providers (ISPs) and network professionals deploy, manage, and optimize fiber optic networks efficiently. Through GPON Solution, he shares practical technical guides, real-world solutions, and professional knowledge to support engineers working in modern GPON infrastructure.

PON Advantages

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PON Advantages: Shared infrastructure translates to lower cost per customer  minimal number of optical transceivers  feeder fiber and transceiver costs divided by N customers  greenfield per-customer cost similar to UTP [boxads] Passive splitters translate to lower cost can be installed anywhere no power needed essentially unlimited MTBF Fiber data-rates can be upgraded as technology improves … Read more

How to stop repeat Ping command ?

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How to stop repeat Ping command ? Which command you are trying to stop/Break repeat ping when you face problem cisco Switch/Router. [bodyads] Don’t worry please try bellow command, it’s work successfully. Hold down Ctrl+shift+6, release and then press x immediately. This may work depending on your IOS.

Which types of command used to ping a host continuously?

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Which types of command used to ping a host continuously? You can ping from cmd by typing: c:\>ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS] [-r count] [-s count] [[-j host-list] | [-k host-list]] [-w timeout] target_ip/name [boxads] Source(s): Options: -t Ping the specified host until stopped. To see statistics and … Read more

MPLS VPN Components basic knowledge

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MPLS VPN Components:

Today I will discuss about MPLS VPN Components. It is same as MP-BGP Components. only extra Label component are added with MPLS VPN Components. [boxads]

  • RD: Route Distinguisher
  • VPNv4 routes
  • RT: Route Target
  • Label
MPLS VPN Components
MPLS VPN Components

VPNv4 address:

  • To convert an IPv4 address into a VPNv4 address, RD is appended to the IPv4 address i.e 1:1:10.1.1.0 Makes the customer’s IPv4 route globally unique.
  • Each VRF must be configured with an RD at the PE. RD is what that defines the VRF   [adsense]

Example:

ip vrf v1
rd 1:1

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Virtual Routing and Forwarding basics (VRF)

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Virtual Routing and Forwarding basics (VRF):

Today i will discuss about Virtual Routing and Forwarding basics (VRF). VRF is a Layer 3 VPN technique. VRF can be use with or without MPLS.  If we look bellow diagram we see here two VRF one is green VRF and another is blue VRF. [boxads]

Virtual Routing and Forwarding basics (VRF) Diagram:

Virtual Routing and Forwarding basics (VRF)
Virtual Routing and Forwarding basics (VRF)

Now one question what is VRF ?

  • VRF associates to one or more interfaces on PE.
  • Privatize an interface. [i.e. coloring of the interface in diagram]
  • Has its own routing table and forwarding table (CEF)
  • VRF has its own instance for the routing protocol (static ,RIP,BGP,EIGRP,OSPF)
  • CE router runs standard routing software
  • PE installs the routes, learned from CE routers, in the appropriate VRF routing table(s)
  • Also PE installs the IGP (backbone) routes in the global routing table
  • VPN customers can use overlapping IP addresses.

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MPLS VPN Connectivity diagram

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MPLS VPN Connectivity diagram:

Today i will discuss about MPLS VPN Connectivity diagram or how a MPLS VPN domain buildup in service provider environment. [boxads]

MPLS VPN domain are consist mainly P & PE router.  P router means provider router, and PE router means provider edge router. P router are only forwarded Level & PE router collect & distribute customer prefixes. If we look bellow diagram we see P & PE router how connected.

MPLS VPN Connectivity diagram:

MPLS VPN Connectivity diagram
MPLS VPN Connectivity diagram

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