[j-nsp] a few basic mpls questions

Josef Buchsteiner josefb at juniper.net
Thu Dec 4 14:31:23 EST 2003


 


Thursday, December 4, 2003, 3:59:36 PM, you wrote:
> Hi all,

> 1) Assuming I had created a single LSP from Routers A to C, if I sent a ping
> from A - C due to the unidirectional state of the lsp, the return icmp
> traffic from C-A would use the IGP ?

  correct.  it  would  take  whatever  best paths it finds in the
  inet table

> 2) I have 2 bi-directional lsps to the same destination, if I'm runnig cspf,
> what metric adjustment would I need to make to prefer one path over another.
> I'm assuming I would adjust the LSP metric and not the IGP ?

      the  metric  of  the  rsvp LSP will take the igp metric per
      default  so  if  the  paths  to  the  same destination have
      different  paths  you  may get a different metric for the
      two  LSP's as well. In case both LSP's have the same metric
      you can set the metric on the labelswitch-path as well.

> Thanks in advance.

> Rolo !

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