- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- IP multicast in MPLS networks
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
IP multicast in MPLS networks Chan, Fustina
Abstract
The Multiprotocol Label Switching (MPLS) is an advanced technology that enables IP networks to support traffic engineering efficiently. It speeds up packet forwarding by combining layer 3 routing with layer 2 switching. In MPLS, a label in the packet is used for making forwarding decisions and a path is pre-established to switch labeled packets at layer 2. Unfortunately, MPLS was originally designed for unicast IP traffic and there is as yet no complete definition for the support of multicast IP traffic. In this thesis, a new mechanism for MPLS to support IP multicast traffic is presented. It is motivated by the idea of a data-driven upstream label allocation scheme. The dense mode of the Protocol Independent Multicast (PIM-DM) is used as the signalling protocol to support multicast label switching. Multicast labels are allocated by upstream routers and distributed towards downstream routers. This process is triggered by the arrival of multicast traffic and no explicit control message is required to piggyback the label advertisement. The key objective is to improve the network scalability by using multicast label switching to forward IP multicast packets at layer 2 with minimal forwarding at layer 3. The support of multicast IP traffic in the MPLS network has been implemented under the Network Simulator (NS) from UC Berkeley. Our performance results show significant improvement on the network scalability in terms of the setup time for multicast label switching and the use of the label space. MPLS with IP multicast support plays an important role in the next-generation network.
Item Metadata
Title |
IP multicast in MPLS networks
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
2002
|
Description |
The Multiprotocol Label Switching (MPLS) is an advanced technology that
enables IP networks to support traffic engineering efficiently. It speeds up packet
forwarding by combining layer 3 routing with layer 2 switching. In MPLS, a label
in the packet is used for making forwarding decisions and a path is pre-established
to switch labeled packets at layer 2. Unfortunately, MPLS was originally designed
for unicast IP traffic and there is as yet no complete definition for the support of
multicast IP traffic.
In this thesis, a new mechanism for MPLS to support IP multicast traffic is
presented. It is motivated by the idea of a data-driven upstream label allocation
scheme. The dense mode of the Protocol Independent Multicast (PIM-DM) is used
as the signalling protocol to support multicast label switching. Multicast labels are
allocated by upstream routers and distributed towards downstream routers. This
process is triggered by the arrival of multicast traffic and no explicit control message
is required to piggyback the label advertisement. The key objective is to improve
the network scalability by using multicast label switching to forward IP multicast
packets at layer 2 with minimal forwarding at layer 3.
The support of multicast IP traffic in the MPLS network has been implemented
under the Network Simulator (NS) from UC Berkeley. Our performance
results show significant improvement on the network scalability in terms of the
setup time for multicast label switching and the use of the label space. MPLS with
IP multicast support plays an important role in the next-generation network.
|
Extent |
2838025 bytes
|
Genre | |
Type | |
File Format |
application/pdf
|
Language |
eng
|
Date Available |
2009-08-12
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
DOI |
10.14288/1.0051533
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Graduation Date |
2002-05
|
Campus | |
Scholarly Level |
Graduate
|
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.