Mac address and VLAns
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Posted by glen herrmannsfeldt on June 20, 2008, 4:06 am
Please log in for more thread options (snip) More specifically, exactly is in the post the name of the book is: "the switch book" which if put into almost any search engine comes up with the book in most of the hits. -- glen | ||||||||||||||||||||||||||||||||||||||||
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Posted by vicky on June 22, 2008, 8:41 am
Please log in for more thread options > On Thu, 19 Jun 2008 21:04:01 -0700 (PDT),
> > > Sir ...
>
> > =A0As u mentioned about a book .... The Switch Book...
> > can u plz ... give a full detail of this book =A0(publication, writer > > etc) > > so that it is easy for me to find it at book stores.... >
> > Vikrant.
>
..
> For example, see here: > > =A0http://www.amazon.com/Switch-Book-Complete-Switching-Technology/dp/04.= >
> Finding this cost me less than 10 seconds, even without using the > knowledge who the author is (which anyone regularly reading this group > knows). I don't know about you, but that is less than the time it took > me to write this followup posting. > > -- > =A0 j p d (at) d s b (dot) t u d e l f t (dot) n l . > =A0 This message was originally posted on Usenet in plain text. > =A0 Any other representation, additions, or changes do not have my > =A0 consent and may be a violation of international copyright law. ------------------- hello sir...glad to meet with u .... i really really feeling glad... please.... make my way lighten.....by sharing u'r knowledgable thoughts.......please.... my email id is --- vikrant.pandey@gmail.com | ||||||||||||||||||||||||||||||||||||||||
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Posted by vicky on June 23, 2008, 1:05 am
Please log in for more thread options wrote:
> In article
> > > Hi,
>
> > =A0 =A0 =A0 =A0Plz explain =A0...
>
> > =A0 =A0 =A0 =A0 A single mac address is able to be a member of multiple=
vlans.
>
lting
> A MAC address is not a "member" of a VLAN. It is *frames* (not MAC > addresses, ports, IP addresses, or anything else) that are associated > with particular VLANs. The rules for associating frames with VLANs can > be based on almost any characteristic of the frame, such as: > > -the switch port on which the frame arrived (port-based VLAN) > -the MAC source address in the frame (MAC address-based VLAN) > -the IP subnet identifier within the frame (IP subnet-based VLAN) > -the TCP/UDP port number within the frame (application-based VLAN), etc. > > While many people may *think* they are associating a port (or a MAC > address) with a VLAN, they are really specifying a VLAN-association rule > that is based on switch port (or MAC address); the distinction is > subtle, but important, particularly when end stations are VLAN-aware, > and perform the association themselves. > > Consider a multi-homed VLAN-aware end station (e.g., a server) that > associates frames with VLANs based on IP subnet identifiers. Since that > station has multiple IP addresses (that's what multi-homed means), it > will emit frames carrying different VLAN IDs, depending on the subnet to > which the frame is directed. However, that station may have the same MAC > address on all subnets (sidebar: I never said that the server had > multiple physical interfaces, and even if it did, it is permissible to > assign the same MAC address to multiple interfaces that are not on the > same LAN). Thus, this is a device that, according to *your* model, has a > MAC address that is a "member" of multiple VLANs. This dichotomy > disappears when one realizes that it is the *frames* that are associated > with the VLANs, and each frame is associated with one (and only one) > VLAN. > > If you don't like the multi-homed station example, the same phenomenon > arises in the case of a single-homed station that associates VLAN IDs > based on application streams; e.g., a video delivery server (think: > Intranet multicast delivery of training videos) that assigns a VLAN to > each video stream so that bandwidth can be conserved within an > enterprise. Another example is a VoIP conference-call server, > associating each conference call (multicast) to a VLAN. > > There is a complete explanation of this in Chapter 11 of "The Switch > Book." > > -- > Rich Seifert =A0 =A0 =A0 =A0 =A0 =A0 =A0Networks and Communications Consu= > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 21885 Bear Creek Way
> (408) 395-5700 =A0 =A0 =A0 =A0 =A0 =A0Los Gatos, CA 95033 > (408) 228-0803 FAX > > Send replies to: usenet at richseifert dot com ---------------------------------------------------------------------------= -------------------------------------------------------------- Hello Mr. Rich Seifert I want to discuss some of my queries with u as some are not totally asked by text so these also requires figures. but here its not possible to draw figure So can u give me u'r mail id so that i send the queries in files to U.... my mail id is -- vikrant.pandey@gmail.com regards Vikrant | ||||||||||||||||||||||||||||||||||||||||
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Posted by Rich Seifert on June 23, 2008, 11:21 am
Please log in for more thread options In article
> wrote:
> > --
> > Rich Seifert Networks and Communications Consulting > > 21885 Bear Creek Way > > (408) 395-5700 Los Gatos, CA 95033 > > (408) 228-0803 FAX > > > > Send replies to: usenet at richseifert dot com >
> ------------------------------------------------------------------------------ > ----------------------------------------------------------- > > Hello Mr. Rich Seifert > > I want to discuss some of my queries with u as some are not totally > asked by text so these also requires figures. > but here its not possible to draw figure > So can u give me u'r mail id so that i send the queries in files to > U.... Did you consider reading the signature on my posting? -- Rich Seifert Networks and Communications Consulting 21885 Bear Creek Way (408) 395-5700 Los Gatos, CA 95033 (408) 228-0803 FAX Send replies to: usenet at richseifert dot com ***************************** | ||||||||||||||||||||||||||||||||||||||||
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Posted by vicky on June 24, 2008, 12:46 am
Please log in for more thread options wrote:
> In article
> > > > > > > wrote:
> > > --
onsulting
> > > Rich Seifert =A0 =A0 =A0 =A0 =A0 =A0 =A0Networks and Communications C= > > > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 21885 Bear Creek =
Way
> > > (408) 395-5700 =A0 =A0 =A0 =A0 =A0 =A0Los Gatos, CA 95033
> > > (408) 228-0803 FAX >
> > > Send replies to: usenet at richseifert dot com
>
> > -----------------------------------------------------------------------=
----=AD---
> > -----------------------------------------------------------
>
> > Hello Mr. Rich Seifert
>
> > I want to discuss some of my queries with u as some are not totally
> > asked by text so these also requires figures. > > but here its not possible to draw figure > > So can u give me u'r mail id =A0so that i send the queries in files to > > U.... >
lting
> Did you consider reading the signature on my posting? > > -- > Rich Seifert =A0 =A0 =A0 =A0 =A0 =A0 =A0Networks and Communications Consu= > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 21885 Bear Creek Way
oted text -
> (408) 395-5700 =A0 =A0 =A0 =A0 =A0 =A0Los Gatos, CA 95033 > (408) 228-0803 FAX > > Send replies to: usenet at richseifert dot com > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0*****************************- Hide qu= >
> - Show quoted text - --------------------------------- No no, not signatures....... but much more than that............... Vikrant | ||||||||||||||||||||||||||||||||||||||||
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>
> http://www.amazon.com/Switch-Book-Complete-Switching-Technology/dp/0471345865
>
> Finding this cost me less than 10 seconds, even without using the
> knowledge who the author is (which anyone regularly reading this group
> knows). I don't know about you, but that is less than the time it took
> me to write this followup posting.