Howard,

Thanks for the reply.  I have heard the reference many times and when I searched
the RFC's and came up with the ATM definition it did not seem to fit the context
of how it was referenced in IP.



Best Regards,

Julian

""Howard C. Berkowitz"" <[EMAIL PROTECTED]> wrote in message
news:p05001913b632114fb5be@[63.216.127.98]...
: At 12:22 PM -0800 11/10/2000, Julian Eccli wrote:
: >Does anyone know the definition of Control Plane from a generic
: >routing protocol
: >standpoint?  Is it the same definition as in ATM?  I have heard references to
: >control planes in various talks but they were not specific to ATM.
: >
: >
: >Best Regards,
: >
: >Julian
: >
:
: Unfortunately, it isn't as well-specified in IP routing as in the
: B-ISDN/ATM architecture.  Many IP discussions merge what that
: architecture calls the control and management plane.
:
: Personally, I think merging the two is rather unfortunate.  In IP
: networks, I consider control plane protocols those that are used for
: signaling between hosts and ingress/egress routers.  Examples:  ARP,
: IGMP.  Another way to think about them is that they serve a
: user-to-network role.
:
: I consider pure management plane protocols to those used between
: routers:  BGP, OSPF, EIGRP, RIP, etc.  Arguably, these have a
: network-to-network role.
:
: There are protocols that don't neatly fit, such as RSVP and ICMP.  I
: suppose they are control plane when host initiated and management
: plane when router initiated, but that doesn't always work and is ugly
: anyway.
:
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