Thursday, June 14, 2012

All SCTP RFCs Chart


All the up-to-date RFCs can be found at : http://www.rfc-editor.org/rfc-index2.html
Here, I have listed only the current SCTP RFCs and their inter-dependencies (As on June 14, 2012).
As the name implies, INFORMATIONAL RFCs are better than the PROPOSED STANDARD RFCs to understand the protocol !
RFC 4960 is the latest SCTP PROPOSED STANDARD RFC.

Definitions :
--------------
RFC  = Request For Comments
SCTP = Stream Control Transmission Protocol
...........> Extended by RFC
--------> Obsoleted by RFC

'PROPOSED STANDARD' RFCs CHART
````````````````````````````````````````````````````

    |
---+---- June 14, 2012     
    |              
    |        .....>  6526 (IP Flow Information Export (IPFIX) Per SCTP Stream - Mar 2012)
    |        .
    |        .
    |        .....>  6525 (SCTP Stream Reconfiguration - Feb 2012)
    |        .
    |        .
    |        .....>  6096 (SCTP chunk flags registration - Jan 2011)
    |        .
    |        .
    |        .....>  6083 (Datagram Transport Layer Security (DTLS) for SCTP)
    |        .                      
- Jan 2011)
    |        .
    |        .....>  5811 (SCTP-Based Transport Mapping Layer (TML) for Forwarding
    |        .             and Control Element Separation (ForCES) Protocol - Mar 2010)
    |        .
    |        .
    |        .....>  5043 (SCTP Direct Data Placement (DDP) Adaptation - Oct 2007)
    |        .
    |        .
    |        .....>  5061 (SCTP Dynamic Address Reconfiguration - Sep 2007)
    |        .
    |        .
  4960 (SCTP - Sep 2007)
    ^
    |
    |        .....>  4895 (Authenticated Chunks for the SCTP - Aug 2007)
    |        .
    |        .
    |        .....>  4820 (Padding Chunk and Parameter for the SCTP - Mar 2007)
    |        .
    |        .
    |        .....>  4168 (SCTP as Transport for Session Initiation Protocol (SIP)
    |        .                      
- Oct 2005)
    |        .
    |        .....>  3873 (SCTP Management Information Base (MIB) - Sep 2004)
    |        .
    |        .
    |        .....>  3758 (SCTP Partial Reliability Extension - May 2004)
    |        .
    |        .
    |        .....>  3554 (On the Use of SCTP with IPsec - July 2003)
    |        .
    |        .
  2960 (SCTP - Oct 2000)


[Note : RFC 3309 (SCTP Checksum change - Sep 2002) updates RFC 2960, is not showed in the above chart as it is Obsoleted by RFC 4960. ]

INFORMATIONAL RFCs
```````````````````
6458 (Sockets API Extensions for the SCTP - Dec 2011)
5062 (Security Attacks Found Against SCTP and Current Countermeasures - Sep 2007)
4460 (SCTP Specification Errata and Issues - Apr 2006)
4166 (Telephony Signalling Transport over SCTP Applicability Statement - Feb 2006)
3286 (An Introduction to the SCTP) - May 2002)

EXPERIMENTAL RFCs
``````````````````
6084 (General Internet Signaling Transport (GIST) over SCTP and Datagram Transport Layer Security (DTLS) - Jan 2011)
5827 (Early Retransmit for TCP and SCTP - May 2010)
4138  (Forward RTO-Recovery (F-RTO): An Algorithm for Detecting Spurious Retransmission Timeouts with TCP and the SCTP - Aug 2005)
3708 (Using TCP Duplicate Selective Acknowledgement (DSACKs) and SCTP Duplicate Transmission Sequence Numbers (TSNs) to Detect Spurious Retransmissions - Feb 2004)

BEST CURRENT PRACTICE
``````````````````````
6335 Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry - Aug 2011

Saturday, June 9, 2012

India's top books selling websites

Nowadays, I buy books mostly through online shopping.  This saves me a great deal of time and money.
So far, I bought atleast 10 books through Flipkart, and their service is simply superb.
The online books retailing space is seeing an increased competition in recent times.
This is good for the customers as they would get better deals.
Here, I list some of the leading online books retailing websites in India which I used to check for prices before placing an order.

1.) indiabookstore
         - Here, you can compare the price of your book across many book stores. Excellent, isn't it !

2.) Flipkart
         - My first choice. Excellent service, price, customer support.  Now, the prices are not competitive enough.

3.) Junglee
        - Amazon's Indian wing.  Competitive prices.  Don't forget to check here, else you will miss big deals !

4.) Homeshop18
       - Competitive prices.

5.)  Google books & Google library
       - To see the preview and prices across leading websites around the world.

6.) Landmark
       - Good collection. Prices may not be competitive.

7.) uRead
       - Competitive prices.  Google preview option available.

8.) Infibeam

9.) Bookadda

10.) nbc india

11.) Rediff books

12.) Penguin books


13.) amegabooks
         - Ordered one book; Not received the book since the book is unavailable; Amount got refunded.

Spiritual books :

vedic books

zen publications