MPLS TE Tunnel : Tunnel B/W doubt

Hi All

I am running in some issue to understand how Tunnel Bandwidth works .

Topology
---------

R1 R4
| |
| |
R2-----------------R3

R1 is head end of tunnel . It has 2 tunnels Tunnel0 and Tunnel 1 as follows
:

R1#sh run int tun 0
Building configuration...

Current configuration : 284 bytes
!
interface Tunnel0
 ip unnumbered Loopback0
 tunnel mode mpls traffic-eng
 tunnel destination 4.4.4.4
 tunnel mpls traffic-eng autoroute announce
 tunnel mpls traffic-eng priority 7 7
 tunnel mpls traffic-eng bandwidth 70
 tunnel mpls traffic-eng path-option 1 dynamic lockdown
end

R1#sh run int tun 1
Building configuration...

Current configuration : 284 bytes
!
interface Tunnel1
 ip unnumbered Loopback0
 tunnel mode mpls traffic-eng
 tunnel destination 4.4.4.4
 tunnel mpls traffic-eng autoroute announce
 tunnel mpls traffic-eng priority 7 7
 tunnel mpls traffic-eng bandwidth 60
 tunnel mpls traffic-eng path-option 1 dynamic lockdown

Now ; one tunnel has bandwidth of 70Kbps and other has of 60Kbps .
Following is my show ip route ospf output :

      4.0.0.0/32 is subnetted, 1 subnets
O 4.4.4.4 [110/4] via 4.4.4.4, 00:05:52, Tunnel1
                 [110/4] via 4.4.4.4, 00:05:52, Tunnel0

I see both entries there ...

Is there a reason for this ?
Please let me know .. I think that it should be routing via Tunnel 0 only .

Thanks
Gaurav Madan

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Received on Sat Jan 28 2012 - 20:44:46 ART