From: Fred Ingham (fingham@xxxxxxx)
Date: Mon Jul 08 2002 - 01:28:57 GMT-3
Jan: Two routers attached to the same ring only requires one TrBRF and one
TrCRF.
The router ports are both assigned to the same TrCRF. Each of the routers
would have
100 as the local ring number. If you wanted to ping between the two router
interfaces
you would not need to configure the bridge number or SRB or SRT or DLSW.
Just have them in the same subnet.
The switch will not let you assign the same ring number to different
TrCRF's with the
same TrBRF so that was normal behavior. You can, however, configure
another TrBRF
and a TrCRF belonging to it and configure the same ring number as the first
TrCRF.
(I just checked this out as I wasn't sure you could do it). Now you can
configure DLSW
between the two routers and use the same local ring number, 100, for each.
SRB and RSRB
would have a problem with this because of the duplicate ring numbers but
DLSW is OK
with duplicate ring numbers on peers.
Cheers, Fred.
----- Original Message -----
From: "John White" <jan_white7@hotmail.com>
To: <fingham@cox.net>
Cc: <ccielab@groupstudy.com>
Sent: Sunday, July 07, 2002 6:30 PM
Subject: Re: Ring numbers in SRB
> Hi Fred,
> Thanks for explanation, I wasn't sure myself about couple things either.
> But I do have one more questions.One time I had scenario with 2 routers
> attched to the same ring let's say 100. When I tried to configure second
> TrCRF for the same value of 100,I got an errror message saying that this
> value has been already used. So I had to use 101 for TrCRF for second
> router.
> Is this normal behaviour or I was doing something wrong.?
> Which value I should use later when configuring router 100 or 101?
> The lab requirement stated value of 100.
> Jan
>
>
> >From: "Fred Ingham" <fingham@cox.net>
> >Reply-To: "Fred Ingham" <fingham@cox.net>
> >To: "Ping Pong" <booby_trap2001@yahoo.com>, <ccielab@groupstudy.com>
> >Subject: Re: Ring numbers in SRB
> >Date: Sun, 7 Jul 2002 17:14:49 -0400
> >
> >If you have other devices on the same TrCRF, say PC's that you want to
> >reach, then you want to match the TrCRF ring number with the local ring
> >number on the router. The bridge number can be any number 1-F and does
not
> >need to match the TrBRF number. The ring numbers on the 3920 switch are
> >always in hex. Ring numbers on the router are displayed in decimal but
can
> >be entered in hex.
> >
> >For instance, if my TrBRF bridge is F, the default, and my TrCRF
> >ring number is 0x100, the connected router config, for DLSW, would be:
> >
> >source-bridge ring-group 200
> >(dlsw local and remote peer commands)
> >
> >int tok 0
> >ring 16
> >source-bridge 0x100 1 200 (displayed as 256 1 200)
> >source-bridge spanning
> >
> >If there is a second router (dlsw peer) that router could be configured
> >with
> >the exact same ring /bridge numbers although I don't recommend it as a
> >general practice. Since DLSW terminates the RIF you can have duplicate
> >ring
> >numbers. For SRB or RSRB this isn't true.
> >
> >For the example in another post,
> >PC-3920VLAN1-R1--DLSW--R2--3920VLAN2--PC
> >with VLAN 1 ring 0x10, bridge 5
> > VLAN 2 ring 0x20, bridge 7
> >
> >The configs would be:
> > R1 R2
> >sou ring-group 200 sou ring-group 200
> >dlsw local peer <r1 add> dlsw local peer <r2 add> prom
> >dlsw remote 0 tcp <r2 add>
> >
> >int tok 0 int tok 0
> >ring 16 ring 16
> >source-bridge 16 1 200 source-bridge 32 1 200
> >source-bridge spanning source-bridge spanning
> >
> >Hope this helps,
> >Fred
> >
> >
> >----- Original Message -----
> >From: "Ping Pong" <booby_trap2001@yahoo.com>
> >To: <ccielab@groupstudy.com>
> >Sent: Thursday, July 04, 2002 1:30 AM
> >Subject: Ring numbers in SRB
> >
> >
> > > Guys,
> > >
> > > I am confused about configuring the ring and bridge
> > > numbers in SRB. Should the ring number match with the
> > > ring number configured for that port on the TokenRing
> > > switch?. And what about the bridge number?. Which
> > > should it match?.TRcrf or Trbrf?.
> > > Also, which should they be in hex or decimal?.
> > >
> > > Thanks!
> > >
> > >
> > >
> > >
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:36:21 GMT-3