, Telecom Tigers

Monday, February 24, 2020

IPv6 Features !!!

Hi All,
          Greeting from TelecomTigers Team,
Today, let discuss some features in IPv6, which makes it differ from IPv4,
Below are some basic information for IPv6,
  • Its a 128 Bit Address
  • Divided into 8 Segments
  • Each Segment is of 16 Bits
  • Each Segment is separated by ":" Sign
  • IPv6 Address Example - ACDF : 0A39 : 412F : B5E2 : 00FF : FF21 : 79EA : 0001
Features :-
  1. Longer Address Range - 2⌃128 Bits (3.4 x 10⌃38 Addresses)
  2. No Broadcast - It has (Unicast, Multicast, AnyCast)
  3. Single IP can be used by specific user at all places i.e. no need to assign new IP every time, as user changes his location,
  4. Single IP can be used for End to End Connectivity i.e. NAT feature not required
  5. IP Security (IPSec) - Optional but Available
  6. Quick Routing - All important information is at starting of Header which help in quick decision for routing
  7. Reduced Complexity in Header w.r.t IPv4,
                 IPv6 - Address Length (40 Byte with 8 Fields)
                 IPv4 - Address Length (20 Byte with 13 Fields)

Comments are most Welcomed,
Telecom Tigers Team

For Clean & Green Future !!!

Tuesday, January 31, 2017

IPv6 (Internet Protocol Version 6)

Hi All,

   Greeting from TelecomTigers Team,

Today let discuss about IPv6 Protocol Overview,

           As we all know, that currently millions/billions of users are connected via Internet around the world, & there is continuous growth of Internet usage in Future too, which includes connection of various devices like mobiles/smartphone, vehicles, other devices, etc., which requires more n more unique IP's,

but there is certain amount of Unique IP's i.e. 2⌃32 Addresses (4,294,967,296 which is around 4 Billions Addresses) available with current IP Version i.e. IPv4 (Internet Protocol Version 4 which we normally call as - IP),

So, as the User Devices are Increasing day-by-day, we are running out of these unique IP's, & hence we need some other way & to overcome the issue, before all IP's are Utilized, our researchers came up with IPv6 i.e. Internet Protocol Version 6.

Note :- Its NOT a New Protocol but a New/Modified version of IPv4 (which was having limitation of Unique IP's).

In IPv6, we have Overcome the limitation of Unique IP's by Increasing it Bits Limit from 32 to 128 i.e IPv6 has 2⌃128  Addresses (3.4 x 10⌃38 Addresses), & also making it Hexa-Decimal which overall makes longer address location,

lets see some comparison between IPv6 over IPv4,

Advantage of Using IPv6 Over IPv4,
  • Provides More Addresses w.r.t IPv4.
  • Supporting Growth of Internet.
  • Provides Better Security.
  • Better Handling of IP's for All Devices. 

Comments are most Welcomed,

Telecom Tigers Team

Friday, October 14, 2016

Roaming Call Flow

Hi All,

   Greeting from TelecomTigers Team,

As per request from many of our readers,
Here is a MT Call Flow, When Subscriber is in Roaming,
Following parameters are not taken here for simplicity i.e. Authentication, Ciphering, Paging, etc.

Postpaid Subscriber MT Call Flow :-

  • Mobile (MS A) dials Mobile (MS B) Number (which is of Circle 2 but currently in roaming at Circle 1).
  • "Connect" msg is sent from MS A to MSC A, which analyse B-Number & found it's of different circle, so it route the call to GMSC A.
  • After receiving IAM from GMSC A, GMSC B initiates the SRI request to HLR B.
  • In Normal Scenario, i.e. Postpaid MT call flow, GMSC B will initiate the SRI query to HLR B & HLR B will ask for PRN from MSC B (in which MS B currently present), & MSC B will respond to that query by providing MSRN number to GMSC B via HLR B, but here,
  • Since MS B is in Roaming at Circle 1, so HLR B will ask for PRN from MSC C, via GMSC B & GMSC C.
  • MSC C provides the MSRN to GMSC A via GMSC C & GMSC B
  • After receiving MSRN by GMSC A, MSC A routes the call to MSC C.
  • Now, ISUP msgs (IAM, ACM, ANM, REL, RLC) is sent from MSC A to MSC B, to complete the call.

Comments are most Welcomed,

Telecom Tigers Team
Template design by Amanda @ Blogger Buster