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Author VLAN question
Nick

2002-12-14, 4:24 am

Can you have more than 1 subnet per VLAN?


Geoff Bell

2002-12-14, 9:24 am

yup.


"Nick" <twiggy@thegrid.net> wrote in message
news:uvlubuhrio3ge8@corp.supernews.com...
> Can you have more than 1 subnet per VLAN?
>
>



Millimeter

2002-12-14, 10:24 am

On Sat, 14 Dec 2002 01:27:38 -0800, "Nick" <twiggy@thegrid.net> wrote:

>Can you have more than 1 subnet per VLAN?
>


uhmm,
a Subnet is layer 3 and a Vlan is Layer 1, so
Yes.
Andy Barkl

2002-12-14, 12:24 pm

"Millimeter" <millimeter.NOMOSPAM@sympatico.ca> wrote in message
news:lfhmvus8d4r3jerltcamul2va
r2mj0acjf@4ax.com...
> On Sat, 14 Dec 2002 01:27:38 -0800, "Nick" <twiggy@thegrid.net> wrote:
>
> >Can you have more than 1 subnet per VLAN?
> >

>
> uhmm,
> a Subnet is layer 3 and a Vlan is Layer 1, so
> Yes.


You need to do your research Millimeter before attempting to answer these
types of questions just like the SCSI question in the A+ group.
VLANs are created at layer 2.


steve harris

2002-12-14, 12:24 pm

Andy Barkl wrote:

> "Millimeter" <millimeter.NOMOSPAM@sympatico.ca> wrote in message
> news:lfhmvus8d4r3jerltcamul2va
r2mj0acjf@4ax.com...
>> On Sat, 14 Dec 2002 01:27:38 -0800, "Nick" <twiggy@thegrid.net> wrote:
>>
>> >Can you have more than 1 subnet per VLAN?
>> >

>>
>> uhmm,
>> a Subnet is layer 3 and a Vlan is Layer 1, so
>> Yes.

>
> You need to do your research Millimeter before attempting to answer these
> types of questions just like the SCSI question in the A+ group.
> VLANs are created at layer 2.


Are you sure?
VLANs are configured by physical switch port, thus layer 1.
Gareth

2002-12-14, 12:24 pm


"steve harris" < steveharris1@REMOVECAPShotmail
.com> wrote in message
news:BZJK9.1456$Pm2.94264@feed2.centurytel.net...
> Are you sure?
> VLANs are configured by physical switch port, thus layer 1.


Yes, but they don't physically disconnect the ports from communicating with
each other .. the switch simply refuses to forward any MAC frames (= data
link layer, no 2) between different VLANs, in effect creating disjoint
(virtual) LANs.

G.


Andy Barkl

2002-12-14, 12:24 pm

"steve harris" < steveharris1@REMOVECAPShotmail
.com> wrote in message
news:BZJK9.1456$Pm2.94264@feed2.centurytel.net...
> Are you sure?
> VLANs are configured by physical switch port, thus layer 1.


I'm positive steve!


Nick

2002-12-14, 1:24 pm

So you guys are positive this configuration would work

VLAN1 - 254 Hosts
172.16.1.0

VLAN2 - 1270 Hosts
172.16.2.0
172.16.3.0
172.16.4.0
172.16.5.0


VLAN3 - 2032 Hosts
172.16.6.0
172.16.7.0
172.16.8.0
172.16.9.0
172.16.10.0
172.16.11.0
172.16.12.0
172.16.13.0
172.16.14.0


steve harris

2002-12-14, 2:24 pm

Nick wrote:

> So you guys are positive this configuration would work
>
> VLAN1 - 254 Hosts
> 172.16.1.0
>
> VLAN2 - 1270 Hosts
> 172.16.2.0
> 172.16.3.0
> 172.16.4.0
> 172.16.5.0
>
>
> VLAN3 - 2032 Hosts
> 172.16.6.0
> 172.16.7.0
> 172.16.8.0
> 172.16.9.0
> 172.16.10.0
> 172.16.11.0
> 172.16.12.0
> 172.16.13.0
> 172.16.14.0


Manufacturer of switches?
Nick

2002-12-14, 2:24 pm

Cisco
"steve harris" < steveharris1@REMOVECAPShotmail
.com> wrote in message
news:0JLK9.1468$Pm2.95188@feed2.centurytel.net...
> Nick wrote:
>
> > So you guys are positive this configuration would work
> >
> > VLAN1 - 254 Hosts
> > 172.16.1.0
> >
> > VLAN2 - 1270 Hosts
> > 172.16.2.0
> > 172.16.3.0
> > 172.16.4.0
> > 172.16.5.0
> >
> >
> > VLAN3 - 2032 Hosts
> > 172.16.6.0
> > 172.16.7.0
> > 172.16.8.0
> > 172.16.9.0
> > 172.16.10.0
> > 172.16.11.0
> > 172.16.12.0
> > 172.16.13.0
> > 172.16.14.0

>
> Manufacturer of switches?



steve harris

2002-12-14, 2:24 pm

Nick wrote:

> Cisco
> "steve harris" < steveharris1@REMOVECAPShotmail
.com> wrote in message
> news:0JLK9.1468$Pm2.95188@feed2.centurytel.net...
>> Nick wrote:
>>
>> > So you guys are positive this configuration would work
>> >
>> > VLAN1 - 254 Hosts
>> > 172.16.1.0
>> >
>> > VLAN2 - 1270 Hosts
>> > 172.16.2.0
>> > 172.16.3.0
>> > 172.16.4.0
>> > 172.16.5.0
>> >
>> >
>> > VLAN3 - 2032 Hosts
>> > 172.16.6.0
>> > 172.16.7.0
>> > 172.16.8.0
>> > 172.16.9.0
>> > 172.16.10.0
>> > 172.16.11.0
>> > 172.16.12.0
>> > 172.16.13.0
>> > 172.16.14.0

>>
>> Manufacturer of switches?


I found a google search post of someone running 15 subnets and 2600 hosts on
one vlan.

A 2900 shows to be able to handle 16000 MAC addresses.

Broadcast domain with > 500 hosts will be the only point I see working on.

comp.dcom.sys.cisco
Will be able to answer your question.
Millimeter

2002-12-14, 3:24 pm

On Sat, 14 Dec 2002 17:28:01 GMT, "Andy Barkl"
<abarkl@NOSPAM.wetrainit.com> wrote:

>"Millimeter" <millimeter.NOMOSPAM@sympatico.ca> wrote in message
> news:lfhmvus8d4r3jerltcamul2va
r2mj0acjf@4ax.com...
>> On Sat, 14 Dec 2002 01:27:38 -0800, "Nick" <twiggy@thegrid.net> wrote:
>>
>> >Can you have more than 1 subnet per VLAN?
>> >

>>
>> uhmm,
>> a Subnet is layer 3 and a Vlan is Layer 1, so
>> Yes.

>
>You need to do your research Millimeter before attempting to answer these
>types of questions just like the SCSI question in the A+ group.
>VLANs are created at layer 2.
>


Your absolutely right, and as with the scsi issue I have no problem
admitting my error.

Time will tell if I can improve my track record. :-)
Mm
thecomeons

2002-12-16, 3:49 am

track record - 100m sprint?
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