The MPLS-OPS Archive

[Truman Boyes <truman@suspicious.org>]

Hi there,

On Juniper's (JUNOS) you can verify standby paths with mpls rsvp pings. 
(ie. ping mpls rsvp standby <lsp-name>). It is not possible to send 
packets over the "detour" path, which has been computed but is not 
installed in forwarding, as you indicate.


JUNOSe (ERXs) has a command 'show mpls fast-reroute database' where you 
can see the "backup interface" and associated labels, and the status of 
the bypass for the LSP.

--truman
PGP KeyID: A6064EA9
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On 28/04/2005, at 3:21 AM, Bell, John wrote:

> Cisco state in their "Tunnel Builder Pro Installation and User Guide" 
> that Tunnel Builder Pro "provides the ability to quickly check whether 
> an existing set of backup tunnels provide guaranteed bandwidth Fast 
> ReRoute protection for elements in the network" (Chapter 1, p4), if 
> that is of any use.
>  
> cheers,
>     John
>
>
> From: M. elk [mailto:elkou141061@hotmail.com]
>  Sent: Wednesday, April 27, 2005 11:03
> To: mpls-ops
> Subject: [MPLS-OPS]: Testing/validating Backup Path LSP
>
> Hi
>   
> In LSP PING draft :
>  quote
>  The   problem of probing the various flavors of backup paths that 
> will typ-
>    ically not be used for forwarding data unless the primary LSP is 
> down
>    will not be addressed here.
> Unquote
>   
> Any other draft address/suggest a way/technique  to on-line test a FRR 
> facility ??.  
> Or , did any manufacturer introduce a proprietary feature to do the 
> same ???
>   
> Brgds


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