Hmm, well I guess in this case Legacy DDR and Rotary Groups are not
considered the same.
When using Rotary Groups, you can use a Dialer Interfaces to specify the
layer 2 and 3 specifications for one or more Physical Interfaces that holds
only the layer 1 specifications.
An example would be:
router(config)#int bri0
router(config-if)#dialer rotary-group 11
router(config-if)#isdn switch-type basic-dms100
router(config-if)#isdn spid1 21255577110101 2125557711
router(config-if)#isdn spid2 21255577120101 2125557712
router(config-if)#interface dialer 11
router(config-if)#dialer in-band
router(config-if)#encapsulation ppp
router(config-if)#ip address 172.20.1.11 255.255.0.0
router(config-if)#description Mom's House
router(config-if)#dialer map ip 172.20.1.12 2125558080
router(config-if)#dialer-group 17
router(config-if)#exit
router(config)#dialer-list 17 protocol ip permit
Here you have the layer 1 (isdn switch type and isdn spids) configured on
the physical interface (bri0) and the layer 2 and 3 (ppp, ip and phone
number) configured on the dialer interface.
Ole
~~~~~~~~~~~~~~~~~~~~~~~~~~
Ole Drews Jensen
Systems Network Manager
CCNA, MCSE, MCP+I
RWR Enterprises, Inc.
[EMAIL PROTECTED]
~~~~~~~~~~~~~~~~~~~~~~~~~~
-----Original Message-----
From: William Swedberg [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 24, 2000 3:19 PM
To: Ole Drews Jensen; 'Oz'; [EMAIL PROTECTED]
Subject: RE: Legacy???
>From the mouth of Cisco:
Dialer Profiles
The Dialer Profiles implementation of DDR is based on
a separation between logical and physical interface
configuration. Dialer Profiles also allows the logical
and physical configurations to be bound together
dynamically on a per-call basis.
Dialer Profiles is advantageous when you want to share
an interface (ISDN, asynchronous, or synchronous
serial) to place or receive calls, when you want to
change any configuration on a per-user basis (except
encapsulation in the first phase of Dialer Profiles),
when you want to bridge to many destinations, and for
avoiding split horizon problem.
Most routed protocols are supported; however, Frame
Relay, ISO CLNS, and LAPB are not supported.
If you decide to configure Dialer Profiles, you must
disable validation of source addresses for the routed
protocols you support.
For detailed Dialer Profiles information, see the
"Configuring Peer-to-Peer DDR with Dialer Profiles"
chapter.
Legacy DDR
Legacy DDR is powerful and comprehensive, but its
limitations affect scaling and extensibility. Legacy
DDR is based on a static binding between the
per-destination call specification and the physical
interface configuration.
However, Legacy DDR also has many strengths. It
supports Frame Relay, ISO CLNS, LAPB, snapshot
routing, and all routed protocols that are supported
on
Cisco routers. By default, Legacy DDR supports fast
switching.
For information about simple Legacy DDR spoke
configurations, see the "Configuring Legacy DDR
Spokes" chapter. For information about simple Legacy
DDR hub configurations, see the "Configuring Legacy
DDR Hubs" chapter.
William Swedberg CCNP CCDP
--- Ole Drews Jensen <[EMAIL PROTECTED]> wrote:
> Thanks William, but I do not agree 100% with your
> statement.
>
> Dialer Interfaces are used for both Rotary Groups
> and Dialer Profiles.
>
> When using Rotary Groups, you assign a Dialer
> Interface to one or more
> Physical Interfaces, but only one Dialer Interface
> can be associated with
> each Physical Interface.
>
> When using Dialer Profiles, you create a Dialer Pool
> where you make Dialer
> Interfaces and Physical Interfaces members off. Here
> a Physical Interface
> can be a member of one or more Dialer Pool's that
> each have an associated
> Dialer Interface.
>
> In both scenario's, the layer 1 stuff are specified
> on the Physical
> Interface, and the layer 2 & 3 stuff are specified
> on the Dialer Interface.
>
> Let me know if you or others disagree.
>
> Ole
>
> ~~~~~~~~~~~~~~~~~~~~~~~~
> Ole Drews Jensen
> Systems Network Manager
> CCNA, MCSE, MCP+I
> RWR Enterprises, Inc.
> [EMAIL PROTECTED]
> ~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
> -----Original Message-----
> From: William Swedberg [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 24, 2000 1:37 PM
> To: Ole Drews Jensen; 'Oz'; [EMAIL PROTECTED]
> Subject: RE: Legacy???
>
>
> The original question was dealing with DDR. The way
> the term "legacy" was described below is correct,
> but
> in terms of DDR it means that you statically
> configure
> a physical interface for a specific destination.
> You
> are unable to use that interface for other dialing
> uses. Legacy DDR is from point A to point B.
>
> Dialer profiles are the NEW way to do DDR and
> enables
> you to define Dialer interfaces that can be
> associated
> with physical interfaces so you can go from point A
> to
> point B, or point C, or point D, etc.
>
> So when asked to a Legacy DDR implementation,
> configure everything on the physical, and don't use
> dialer profiles.
>
> William Swedberg CCNP CCDP
>
>
>
> --- Ole Drews Jensen <[EMAIL PROTECTED]> wrote:
> > Thanks Oz,
> >
> > Does that mean that the note says that Rotary
> Groups
> > will only be used with
> > DDR?
> >
> > Thanks,
> >
> > Ole
> >
> > ~~~~~~~~~~~~~~~~~~~~~~~~
> > Ole Drews Jensen
> > Systems Network Manager
> > CCNA, MCSE, MCP+I
> > RWR Enterprises, Inc.
> > [EMAIL PROTECTED]
> > ~~~~~~~~~~~~~~~~~~~~~~~~
> >
> >
> >
> > -----Original Message-----
> > From: Oz [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, August 23, 2000 7:22 PM
> > To: Ole Drews Jensen; [EMAIL PROTECTED]
> > Subject: Re: Legacy???
> >
> >
> > Legacy means specific to a particular company
> it's
> > really I guess its a
> > nice way of saying odd ball, off the wall, also .
> > As in each "legacy" piece
> > of hardware/ software has to be dealt with
> > seperately. As in DEC Vines etc
> > In the software world legacy usually means an
> > application that is specific
> > to the company. Like say a bank that hass there
> own
> > accounting system
> > built . That would be legacy application
> compared
> > to say word or netcape
> > If you look at this link you will see what I mean
> >
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_
> > c/dchubddr.htm#41851
> > Oz
> > http://www.mcseco-op.com/helpfull_links.htm
> >
> > ___________________________________
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> >
>
>
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