Re: [mpls-linux-general] Testing with Iperf

[James R. L. <jl...@mi...>]

There have been many emails to the list about this.  Please search the
mailing list archive for my response.

On Mon, Aug 08, 2005 at 05:17:29PM +0200, Miquel Casanovas Puigvi wrote:
> Hello,,
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> I have the next structure and run under mpls perfectly,
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> prefix: 192.168.x.x
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> host_1(LER) <----> host_2(LSR) <----> host_3(LSR) <----> host_4 (LER)
> on x.x=3D   0.1   0.2          3.2    3.3         2.3    2.4
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>  I am testing the transfer speed with Iperf. I run server of iperf to
> host_4,, and in host_1 run the client, my results is the next:
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> On MPLS:
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> [root@uni ~]# iperf -c 192.168.2.4 -F prova.rar -f M -t 30
> ------------------------------------------------------------
> Client connecting to 192.168.2.4, TCP port 5001
> TCP window size: 0.02 MByte (default)
> ------------------------------------------------------------
> [  4] local 192.168.0.1 port 32772 connected with 192.168.2.4 port 5001
> [  4]  0.0-30.0 sec  29.4 MBytes  0.98 MBytes/sec
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> And I disable mpls, the results is:
> On IP:
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> [root@uni ~]# iperf -c 192.168.2.4 -F prova.rar -f M -t 30
> ------------------------------------------------------------
> Client connecting to 192.168.2.4, TCP port 5001
> TCP window size: 0.02 MByte (default)
> ------------------------------------------------------------
> [  4] local 192.168.0.1 port 32780 connected with 192.168.2.4 port 5001
> [  4]  0.0- 8.0 sec  89.1 MBytes  11.1 MBytes/sec
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> It is normal???? I think that on mpls the packets more speed that IP,
> because the forwading is realise on layer 2 (OSI).
> What is it???? Something explanation?
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> thank you;;
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--=20
James R. Leu
jl...@mi...