From Bouncer (from a previous thread, now deceased)
"here's a return question. IPv6 numbering is not decimal based. What is it based on and why does that present a huge challenge?"
Thanks for the new topic, Bouncer. It looks like the challenge you refer to would be the hardware compatability. How are they handling it overseas, with wholesale equipment changeover or "bandaid" conversion gear?
As to the addressing scheme, it's 128 bit as opposed to IPv4's 32 bit.
What are some good sites to visit to learn more? From what little I read so far, it looks like it will make some breakneck throughput possible as well as ensuring superior packet integrity. Not to mention the increase in available IP addresses, twice the square of the number possible with current IPv4!
IPv6
Yes, it is 128bit based, but the numbering system itself is hexadecimal. Specifically 8 16bit hexidecimal addressing values.
So a subnetwork address might look like this:
3ffe
0:f000::/52
(and indeed that is an active subnetwork address at MIT.)
It's even less intuitive than the current subnetting system, and means that the hardware vendors must either implement a workaround to do a 32 bit to 128 bit interpretation or add more memory registers.
Either way it's going to affect a huge number of deployed systems, basically every major interconnect there is.
Regards,
-Bouncer-
So a subnetwork address might look like this:
3ffe
0:f000::/52 (and indeed that is an active subnetwork address at MIT.)
It's even less intuitive than the current subnetting system, and means that the hardware vendors must either implement a workaround to do a 32 bit to 128 bit interpretation or add more memory registers.
Either way it's going to affect a huge number of deployed systems, basically every major interconnect there is.
Regards,
-Bouncer-
This has been brewing for while since we are runnign out of ip addresses, i applaud you for adding something new and interesting to this site, that is all i wanted to accomplich here and it took pulling some teeth to get it done. As for the info you requested......
Definition and features:
1. Larger addresses of 128 bits in length
2. Extended address hierarchy
3. flexible header format
4. improved options
5. provision for protocol extension
6. Support for autoconfiguration and re-numbering
7. support for the allocation of resources
One new feature is the improved option mechanism which seperates optional headers between the ipv6 header and transport layer header. with this you will get improved speed and simpler router processing because most are not examined by intermediate routes.
I know this reply is getting long so if i must go one to prove my knowledge in this area just say the word...
I was also able to read up on some addressign schemes proposed for isp's, check this out.
|FP+RegID| Provider ID | Subscriber ID | Intra-Sub |
| | PRID | RPID | | |
| 8 bit | 7 bit | n bit | (49 - n) | 64 bit |
Definition and features:
1. Larger addresses of 128 bits in length
2. Extended address hierarchy
3. flexible header format
4. improved options
5. provision for protocol extension
6. Support for autoconfiguration and re-numbering
7. support for the allocation of resources
One new feature is the improved option mechanism which seperates optional headers between the ipv6 header and transport layer header. with this you will get improved speed and simpler router processing because most are not examined by intermediate routes.
I know this reply is getting long so if i must go one to prove my knowledge in this area just say the word...
I was also able to read up on some addressign schemes proposed for isp's, check this out.
|FP+RegID| Provider ID | Subscriber ID | Intra-Sub |
| | PRID | RPID | | |
| 8 bit | 7 bit | n bit | (49 - n) | 64 bit |
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PhyberOptix
- Regular Member
- Posts: 158
- Joined: Wed Jul 11, 2001 1:39 pm
- Location: Dallas
"One new feature is the improved option mechanism which seperates optional headers between the ipv6 header and transport layer header. with this you will get improved speed and simpler router processing because most are not examined by intermediate routes."
I don't get what you are saying here...There are no options "between" the IP and transport header, they must be located in one or the other. I assume you are referring to the IP header options, but I still don't see how seperating these is going to produce simpler route processing. Most routers make forwarding decisions soley on the basis of destination IP address. The only routers that would examine the IP options field are ones using some sort of QOS - and your statement still doesn't tell me how IPv6 is going to make this more efficient...Care to elaborate on this?
I don't get what you are saying here...There are no options "between" the IP and transport header, they must be located in one or the other. I assume you are referring to the IP header options, but I still don't see how seperating these is going to produce simpler route processing. Most routers make forwarding decisions soley on the basis of destination IP address. The only routers that would examine the IP options field are ones using some sort of QOS - and your statement still doesn't tell me how IPv6 is going to make this more efficient...Care to elaborate on this?
IP options are placed in separate extension headers that are located between the IP header and the transport-layer header in a packet. Most IP extension headers are not examined or processed by any router along a packet's delivery path until it arrives at its final destination. This facilitates a major improvement in router performance for packets containing options. In IPv4 the presence of any options requires the router to examine all options.
The other improvement is that unlike IPv4 options, IP extension headers can be of arbitrary length and the total amount of options carried in a packet is not limited to 40 bytes. This feature plus the manner in which they are processed, permits IP options to be used for functions which were not practical in IPv4. A good example of this is the IP Authentication and Security Encapsulation options.
The other improvement is that unlike IPv4 options, IP extension headers can be of arbitrary length and the total amount of options carried in a packet is not limited to 40 bytes. This feature plus the manner in which they are processed, permits IP options to be used for functions which were not practical in IPv4. A good example of this is the IP Authentication and Security Encapsulation options.
Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity.
You can go here for an expanded explanation, which is an interesting read, if a few years old.
http://cra.org/Policy/NGI/papers/millerWP
Regards,
-Bouncer-
PS: Syclone_A+, be careful about sourcing material if you didn't write it and it's not common knowledge. It's only polite to give credit where due, and afford others the opportunity to verify your references. If you DID write it, then obviously you should source it for verification.
http://cra.org/Policy/NGI/papers/millerWP
Regards,
-Bouncer-
PS: Syclone_A+, be careful about sourcing material if you didn't write it and it's not common knowledge. It's only polite to give credit where due, and afford others the opportunity to verify your references. If you DID write it, then obviously you should source it for verification.
thats not the same site i am using for my research, looks like someone copied to my site or vice versa, and i replied to this topic in the other thread. As i stated there, when i quote some text online or read in a book i like to make it just that, a quote, i don't like to paraphrase and take credit for someone else's ideas or views. Thats why it is a quote and not my own words. If its wished i will state when i am quoting a book or web site so as not confuse anyone on when i am talking and when i am quoting. I also like when ppl respond to things i quote to see what they take from it and see if maybe they can offer a better or at least different explanation. No need to do any accusing here unless you yourself ar insecure with your amount of knowledge in comparison to mine.
Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity.
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PhyberOptix
- Regular Member
- Posts: 158
- Joined: Wed Jul 11, 2001 1:39 pm
- Location: Dallas
"No need to do any accusing here unless you yourself ar insecure with your amount of knowledge in comparison to mine."
Whoa....You may want to take a step back and rethink that statement. First, it's common knowledge that you should absolutely point out when your statements are quotes from other sources and you should certainly reveal those sources. People often take statements from publicized books / web sites and attempt to pass it off as their own words in an attempt to sound knowledgable. The truth is, if you truly understand the subject matter you should have no trouble explaining things in your own words.
Second, you certainly aren't in a place to boast about knowledge. I realize you have your A+ and I commend you for taking the time to explore new technologies, but you have a *long* way to go. As you move up in the networking world you will discover a simple truth - the more you learn, the more you realize you have to learn.
Whoa....You may want to take a step back and rethink that statement. First, it's common knowledge that you should absolutely point out when your statements are quotes from other sources and you should certainly reveal those sources. People often take statements from publicized books / web sites and attempt to pass it off as their own words in an attempt to sound knowledgable. The truth is, if you truly understand the subject matter you should have no trouble explaining things in your own words.
Second, you certainly aren't in a place to boast about knowledge. I realize you have your A+ and I commend you for taking the time to explore new technologies, but you have a *long* way to go. As you move up in the networking world you will discover a simple truth - the more you learn, the more you realize you have to learn.
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Phantom-Vortex
- Advanced Member
- Posts: 552
- Joined: Mon Apr 16, 2001 12:00 am
- Location: Where im at
Syclone_A+,
To be a quote, you need to either source it, or use quotations. Preferably both. Without either it's not a quote, it's basically plagarization since there is no way of telling whether you're trying to pass it off as your knowledge or writings. It was a gentle heads up, not an attack.
Fact is, that that 1997 white paper from Dr.Miller at Lawrence Livermore Labs is probably the original source of the material.
The way I found it was by taking part of a sentence in the first paragraph, since I was pretty confident you didn't write it, and run it through a google search. Poof. Up came a variety of sites using that language. The Livermore Labs was identical almost word for word to the quote (I believe there were two words changed plus a punctuation differential). It was also the oldest document with the paragraphs that I found.
The problem with not sourcing or using quotes is that in the end it can be YOUR credibility that is damaged, even unintentionally.
As to technical skills...
I am not concerned about my level of technical knowledge versus yours.
At all.
Feel free to click on the Editorials link at the top of the page sometime for some of my original works.
Regards,
-Bouncer-
To be a quote, you need to either source it, or use quotations. Preferably both. Without either it's not a quote, it's basically plagarization since there is no way of telling whether you're trying to pass it off as your knowledge or writings. It was a gentle heads up, not an attack.
Fact is, that that 1997 white paper from Dr.Miller at Lawrence Livermore Labs is probably the original source of the material.
The way I found it was by taking part of a sentence in the first paragraph, since I was pretty confident you didn't write it, and run it through a google search. Poof. Up came a variety of sites using that language. The Livermore Labs was identical almost word for word to the quote (I believe there were two words changed plus a punctuation differential). It was also the oldest document with the paragraphs that I found.
The problem with not sourcing or using quotes is that in the end it can be YOUR credibility that is damaged, even unintentionally.
As to technical skills...
I am not concerned about my level of technical knowledge versus yours.
At all.
Feel free to click on the Editorials link at the top of the page sometime for some of my original works.
Regards,
-Bouncer-
First of all i would think by now ppl on here could tell byt the way i talk that certain things i post aren't my words. Second i didn't know this was english class, i don't mean to be a smartass but i really thought that by now ppl could tell a difference in a quote and something i say. I guess in the future i can just post the website like i did with the linksys docs and then no one can down what i am trying to do. I even admitted in one of my replies to phyberoptix that there is alot fo this i don't fully understand yet, but the only gain i see from people accusing me of plagiarizing is to down a threat publically to boost there own standing. I mean how hard would it have been to ask hey where are you getting this from. Then if someone says, oh yea thats all me, then you can come down on them. Again, i am not trying to start another argument i just wanna be heard and understood, i have had enough of the arguing on here unless its over something interesting and the people bring up good logical points to support what they are saying. And please quit dwelling on my a+, yall talk about it more than I do!
Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity.
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PhyberOptix
- Regular Member
- Posts: 158
- Joined: Wed Jul 11, 2001 1:39 pm
- Location: Dallas
Syclone
It's cool, just understand that it's common knowledge to quote your source. The gain for accusing you of plagerizing isn't to boost my standing (I hardly see how it does that anyway), but rather to get you to stop taking credit for other peoples original thoughts. Regardless of whether it is intentional or not, when you don't specify what you are saying is a quote from another source, you are taking credit for it. On top of this, you weren't only quoting w/out credit, you were beginning sentences with your own words and then flowing straight into a quote. This *really* makes it appear as though you were attempting to pass it off as your own thought....But I digress...The point is, you shouldn't get defensive when you got caught doing something that 99.9% of people know is wrong.
"And please quit dwelling on my a+, yall talk about it more than I do!"
If you don't want people to bring it up then why do you advertise it so blatently?
It's cool, just understand that it's common knowledge to quote your source. The gain for accusing you of plagerizing isn't to boost my standing (I hardly see how it does that anyway), but rather to get you to stop taking credit for other peoples original thoughts. Regardless of whether it is intentional or not, when you don't specify what you are saying is a quote from another source, you are taking credit for it. On top of this, you weren't only quoting w/out credit, you were beginning sentences with your own words and then flowing straight into a quote. This *really* makes it appear as though you were attempting to pass it off as your own thought....But I digress...The point is, you shouldn't get defensive when you got caught doing something that 99.9% of people know is wrong.
"And please quit dwelling on my a+, yall talk about it more than I do!"
If you don't want people to bring it up then why do you advertise it so blatently?
the name Syclone by itself was already taken. My fav truck is the GMC Syclone so thats where that comes from. I don't mid ppl mentioning it i just hate how everybody downs it like its some kinda label. For those of you interested to know what it is and why i like it so much here's a link. By the way, it runs 12's stock in the quarter mile!
http://members.aol.com/HMah414055/
http://members.aol.com/HMah414055/
Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity.