From: Muthu Mohanasundaram (mmsundar@xxxxxxxxx)
Date: Wed May 24 2000 - 13:09:00 GMT-3
Hi,
It is still not clear to me about what makes a
LIS (Logical IP Subnet):-(
Let's consider 10 ports on 3900. I want to have 5
ports (1-5) on one VLAN (172.16.1.0/24) and the other
5 ports (6-10) on another VLAN (172.16.2.0/24). I will
route between these two VLAN using an external router.
How to acheive this?
Mohan.
--- Earl Aboytes <earl@linkline.com> wrote:
> If you source-route bridge them together, you want
> them in the same TrBRF.
> If you don't (like dlsw) you want separate TrBRF's.
> That has always worked
> for me.
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Earl Aboytes
> Senior Technical Conultant
> GTE Managed Solutions
> 805-381-8817
> earl.aboytes@telops.gte.com
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> jpritcha@csc.com
> Sent: Wednesday, May 24, 2000 7:14 AM
> To: kgalusha@cisco.com
> Cc: mmsundar@yahoo.com; ccielab@groupstudy.com
> Subject: Re: TokenRing Switching Configs.
>
>
> So, I want to create two separate vlan's on a 3900
> and route between them
> with
> an external router. Each vlan would support two
> workstations plus the
> router
> connection. Would I need to create two separate
> Brf's? And would each Brf
> support one Crf? And would each Crf have 3 ports
> assigned?
>
> Jim
>
>
>
>
> kgalusha@cisco.com on 05/24/2000 05:40:06
>
> Please respond to kgalusha@cisco.com
>
> To: mmsundar@yahoo.com, ccielab@groupstudy.com
> cc: (bcc: James F Pritchard/TMG/CSC)
> Subject: Re: TokenRing Switching Configs.
>
>
>
>
> The Brf (bridge relay function) can be thought of
> the as the parent and the
> Crf
> (concentrator function) are children associated with
> the parent Brf. The
> Brf
> is associated most closely with the logical
> subnet/vlan, but the physical
> ports
> are associated/concentrated on the Crf which, as I
> mentioned, is associated
> with its parent Brf. This concept (Brf, Crf) is
> also used on the token ring
> blades used on the CAT5000 family.
> Kyle
>
> At 07:20 PM 5/23/2000 -0700, Muthu Mohanasundaram
> wrote:
> >Hi,
> >
> >I am studying Catalyst 3900 TokenRing switches.
> >
> >What forms a TokenRing VLAN?
> >
> >1) A TrCRF with many ports attached to it.
> >2) One or more TrCRFs with a parent TrBRF.
> >
> >I am confused about which one will be a Logical IP
> >subnet. The config giude of 3900 does not explain
> >this.
> >
> >Can anyone give me some sample configs. I could't
> find
> >any examples on the DOC CD.
> >
> >Any help would be appreciated.
> >
> >Thanks,
> >
> >Mohan.
> >
> >
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