What is the 'tunnel mpls traffic-en bandwidth' ?

Hi
I do not understand about 'mpls tunnel traffic-en bandwidth'
If i want to use the RSVP-TE then i know i have to configure the 'ip rsvp bandwidth ...'  and 'tunnel mpls traffic-en bandwidth...'
But why i have to configure them for TE.
RSVP is Resource Reservation Bandwidth so i think that 'ip rsvp bandwidth' checked the available B/W in physical interface for TE and it is not the reality B/W for tunnel.
Is it correct?
Can you teach me them for me 'IP RSVP BANDWIDTH, TUNNEL MPLS TRAFFIC-EN BANDWIDTH'
Thank you

Hello Byung,
the ip rsvp bandwidth specifies the total amount of resources available outbound an interface = total reserveable bandwidth on the link it can even bei higher then effective interface speed.
The other command specifies the amount of bandwidth to be used in  the reservation for the specific MPLS TE tunnel and has to be lower then the first one in order for the link to be selected and used for the tunnel. If no suitable path is found the tunnel setup fails.
To be noted the bandwidth associated to an MPLS TE Tunnel is an administrative parameter and does not reflect the effective traffic that can travel over the tunnel.
The Call admission control is performed on the administrative bandwidth parameter not on effective user traffic.
Hope to help
Giuseppe

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