From: Brian Lodwick (xpranax@xxxxxxxxxxx)
Date: Tue Mar 19 2002 - 12:32:29 GMT-3
I just remember this to keep it straight in my head.
On the CAT3920 numbers are in hex.
On a router the numbers are in decimal.
If you set your TrCRF to 0xA and port 1 is in this virtual ring, then the
source-bridge command on the router interface connected into port 1 needs to
have 10 set as the local ring number.
The numbers withing the pseudo- commands within the source-bridge
transparent command are arbitrary though.
>>>Brian
>From: MADMAN <dmadlan@qwest.com>
>Reply-To: MADMAN <dmadlan@qwest.com>
>To: Carl Phelan <carlphelan@hotmail.com>
>CC: ccielab@groupstudy.com
>Subject: Re: Easy 3920 Question
>Date: Mon, 18 Mar 2002 16:48:44 -0600
>
> Not really following the question but I'll take a stab.
>
> In summary CRF's are attached to a parent BRF. What looks like an
>ethernet VLAN is the sum of one parent TrBRF and it's children TrCRF.
>CRF's talk to each other via SRS or TB thru the parent BRF. For one BRF
>to talk to another requires an external device, i.e. RSM.
>
> I can't recall if the CRF is input in hex or base10. The ring number
>is important in that the children of a ring, CRF, all belong to the same
>BRF and that if there are other bridges/routers on the ring they must
>match.
>
> Dave
>
>Carl Phelan wrote:
> >
> > So when asked to configure say VLAN 100 with bridge 14, would 14 in hex
> > form = E go under the TrBRF and the VLAN ID 100 under 100 and is the
> > ring number also 100 but in form hex = 64? Or can the ring number be
> > different or is it dependant on something else?
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > MADMAN
> > Sent: 18 March 2002 19:33
> > To: MOLINA, MARTIN J *Internet* (PBI)
> > Cc: 'ccielab@groupstudy.com'
> > Subject: Re: Easy 3920 Question
> >
> > The TRBRF is arbitrary in that it's number is that it's an internal
> > bridge function that is used to interconnet rings, CRFs. Whereas CRF's,
> > if other bridges/routers are connected are not arbitrary since the ring
> > numbers obviously must agree.
> >
> > Dave
> >
> > "MOLINA, MARTIN J *Internet* (PBI)" wrote:
> > >
> > > Group,
> > > I just wanted to check to see if I understand VLAN numbers as they
> > relate to
> > > TRBRF's and TRCRF's. The literature I have reviewed seems to suggest
> > that
> > > the TRBRF VLAN ID is arbitrary and that the TRCRF VLAN number is the
> > one
> > > that counts. Even examples in Practical Studies suggests throwing any
> > old
> > > number on the TRBRF and "assigning a unique" VLAN number on the TRCRF.
> > Any
> > > input would be appreciated. Thanks in advance.
> > >
> > > Martin Molina
> > > Senior Network Engineer
> > > Pacific Bell Internet Services
> > > CCNP CCDP
> > > desk: 925 973-7774
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