The MPLS WG Archive

[Mohammed <ipswitching@yahoo.com>]

Hi all,

  I have a question related to constrained routed lsp
setup using cr-ldp. 

 A cr-lsp is setup dynamically on demand and is setup
for a flows or flows. Consider a flow generated by a
host running IP and also consider that the flow
requires a bandwidth of x bps. To establish a cr-lsp
for such a flow, the host will first have to reserve a
contrained path. Suppose the host gets the knowledge
of such a path using some cspf algorithm.

 Upon getting the path the source (host) needs to send
the path establishment request to the nearest ingress
LSR.

 Question :

(1) How do we guarantee end 2 end quality os service
in such a case ?

(2) How is the request propagated to the nearest LSR
so that the cr-lsp can be established ?

(3) How will the flow be treated when it leaves the
MPLS domain ?

 In short, how will the host inform the nearest
ingress lsr about such a flow and path ?

Any pointers in this area are welcome.

Please do correct me if i have mis interpreted some
thing some where.

Sincerely,
Abrar Hussain.


=====
Abrar Hussain.
Graduate Student/Network Designer.
The University of Toledo.
Toledo,OH.

__________________________________________________
Do You Yahoo!?
Yahoo! Movies - coverage of the 74th Academy Awards®
http://movies.yahoo.com/

---

• From: Mohammed <ipswitching@yahoo.com>
• Date: Sun, 24 Mar 2002 12:11:35 -0800 (PST)
• Cc: minsong@ieee.org
• Resent-Date: Sun, 24 Mar 2002 15:37:35 -0500
• X-Apparently-To: ipswitching@yahoo.com via web14103.mail.yahoo.com; 24 Mar 2002 12:37:50 -0800 (PST)
• X-Track: 1: 40

Hi all,

  I have a question related to constrained routed lsp
setup using cr-ldp. 

 A cr-lsp is setup dynamically on demand and is setup
for a flows or flows. Consider a flow generated by a
host running IP and also consider that the flow
requires a bandwidth of x bps. To establish a cr-lsp
for such a flow, the host will first have to reserve a
contrained path. Suppose the host gets the knowledge
of such a path using some cspf algorithm.

 Upon getting the path the source (host) needs to send
the path establishment request to the nearest ingress
LSR.

 Question :

(1) How do we guarantee end 2 end quality os service
in such a case ?

(2) How is the request propagated to the nearest LSR
so that the cr-lsp can be established ?

(3) How will the flow be treated when it leaves the
MPLS domain ?

 In short, how will the host inform the nearest
ingress lsr about such a flow and path ?

Any pointers in this area are welcome.

Please do correct me if i have mis interpreted some
thing some where.

Sincerely,
Abrar Hussain.

=====
Abrar Hussain.
Graduate Student/Network Designer.
The University of Toledo.
Toledo,OH.

__________________________________________________
Do You Yahoo!?
Yahoo! Movies - coverage of the 74th Academy Awards®
http://movies.yahoo.com/

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