VLAN Aggregation
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Posted by vicky on July 5, 2008, 5:54 am
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> > Hello
>
> > I 've a query related on the topic VLAN Aggregation is in my
> > shared web file folder >
> > named as : VLAN Aggregator.txt
>
> > I m giving u my web shared file link
>
> > http://vikrantpandey.diinoweb.com/files/
>
> > please give some of your time for watching my query and
> > plz reply . >
> In RFC 3069, Table 2, followed by Section 6, are what really matters. > > It's obvious that you can aggregate IP addressed among LANs. You do > this anytime you connect two Ethernet hosts to an Ethernet layer 2 > switch (i.e. bridge), and assign those two to the same IP subnet. So > it should be clear that the same can be done between VLANs. > > RFC 3069 says that implementation details are not considered in the > RFC. Seems to me, you can create a single spanning tree, then use IP > addresses to determine who the various members are in each VLAN. This > is a valid way to create VLANs. > > Also, pay attention to this text in Section 6: > > "That is, when an address or range of addresses is allocated to a > given sub-VLAN, reception of IP or ARP packets on a sub-VLAN with a > source IP address that isn't allocated to the sub-VLAN should be > discarded, ..." > > So, the way I'd set this up, a single broadcast domain, and only IP > addresses used to differentiate between VLANs. > > Bert ---------------------------------------------------- Hello Sir i 've one more question related to promiscuous port as i know the defination of this promiscuous port .. it can talk to all other types of ports But my question is how we make a port promiscuous means becaming a port promiscuous is only done by when the switch controller gives the capability for promiscuous or making a port promiscuous is done by something else please clearify this ..... Thanks in advance Vikrant | |||||||||||||||||||||||||||||||||||||
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Posted by Walter Roberson on July 5, 2008, 10:52 am
Please log in for more thread options >But my question is how we make a port promiscuous
>means becaming a port promiscuous is only done by when the switch >controller gives the capability for promiscuous >or making a port promiscuous is done by something else >please clearify this .....
Whether a port is promiscuous or not is controlled on the switch. That control may be by switch software or by switch hardware. Making a port promiscuous is *not* done by the contents of any data packet. You cannot, for example, set a particular bit in the layer 2 headers to signal to the switch that it needs to switch into promiscuous mode. There is no requirement that any switch (of any Layer of operation) support promiscuous ports. | |||||||||||||||||||||||||||||||||||||
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Posted by vicky on July 6, 2008, 11:40 am
Please log in for more thread options On Jul 5, 7:52=A0pm, rober...@hushmail.com (Walter Roberson) wrote:
> In article <8ffa1849-f3a7-47bb-8fd0-ec53c52fc...@j22g2000hsf.googlegroups=
.com>, > > >But my question is how we make a port promiscuous
> >means becaming a port promiscuous is only done by =A0when the switch > >controller gives the capability for promiscuous > >or making a port promiscuous is done by something else > >please clearify this ..... >
> Whether a port is promiscuous or not is controlled on the switch. > That control may be by switch software or by switch hardware. > > Making a port promiscuous is *not* done by the contents of any > data packet. You cannot, for example, set a particular bit in the > layer 2 headers to signal to the switch that it needs to switch > into promiscuous mode. > > There is no requirement that any switch (of any Layer of operation) > support promiscuous ports. ------------------------------------------------------------------ Ok Sir, I m thinking some about a promiscuous port .... i m writing it you please tell me is it correct or not I think when we set some ports or any one port to primary vlan (default vlan 1) and allocate a l3 device to this port then this port or ports are termed as promiscuous port.... Is it correct................ regards Vikrant | |||||||||||||||||||||||||||||||||||||
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Posted by Albert Manfredi on July 6, 2008, 7:20 pm
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> I think when we set some ports or any one port to primary vlan
> (default vlan 1) and allocate a l3 device to this port =A0then this port > or ports =A0are termed as promiscuous port.... > > Is it correct................ What are you asking? Are you asking what a promiscuous port is, or are you asking how the existence of VLANs in a given L2 network affects the definition of promiscuous port? Bert | |||||||||||||||||||||||||||||||||||||
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Posted by Albert Manfredi on July 6, 2008, 7:34 pm
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> =A0I m thinking some about a promiscuous port .... i m writing it =A0you
> please tell me is it correct or not > > I think when we set some ports or any one port to primary vlan > (default vlan 1) and allocate a l3 device to this port =A0then this port > or ports =A0are termed as promiscuous port.... I just did a quick search under "promiscuous port," as opposed to the more general "promiscuous mode," and came up with this definition: --------------------------------------- http://www.examguides.com/ccnp-switching-7.htm 39.0 The following are true about PVLANs: 1. There are three types of private VLAN ports: promiscuous, isolated, and community. 1.1 Promiscuous port: A promiscuous port communicates with all other PVLAN ports, and is the port typically used to communicate with external routers, servers, administrative workstations, etc. [ ... ] 4. In a PVLAN, promiscuous ports are called the primary VLAN, while community and isolated ports are called secondary VLANs. 5. A PVLAN will only have one primary VLAN, but may have several secondary VLANS. ---------------------------------------------------------- Bert | |||||||||||||||||||||||||||||||||||||
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