A path establishment approach in an MPLS-ATM integrated environment

Abstract

Abstract-Multiprotocol Label Switching (MPLS) is an advanced forwarding scheme, which allows the network to achieve the Traffic Engineering (TE) objectives. When two or more MPLS nodes are connected via an ATM backbone merely composed of ATM switches, it is necessary to add some mechanisms to allow the label distribution and allocation between both nodes. In this paper a solution is proposed to integrate ATM and MPLS, so that the ATM backbone will be seen as a unique MPLS node from the MPLS domain and as a consequence of that the end-to-end LSP establishment can be carried out.

Providing QoS in MPLS-ATM Integrated Environment

“…Therefore, they can be used to carry non-ATM information such as LDP information. In this way, we suggested in [7] using a new GIT in order to start a LDP in ND3. We proposed adding a new GIT in the SETUP message with the following characteristics.…”

“…In this situation is needed to use a LDP in ND3 in order to set up the LSP until the destination LSR. In order to solve this problem, we suggest proceeding as follow [7]:…”