As shown in the figure, RTA, RTB, RTC are interconnected over IS-IS, RTA,
RTD, RTE, and RTC are interconnected over OSPF. Both IS-IS and OSPF use the default costs. RSVPTE is enabled on all routers and the interfaces between these routers. The Loopback0 interface of RTC is 192.168.0.3/32 and is advertised in both OSPF and ISIS areas. 192.168.0.3/32 is also the LSR ID of MPLS. Configurations of the MPLS and tunnel on RTA:
#
mpls lsr-id 192.168.0.1
mpls
mpls te
mpls rsvp-te
mpls te cspf
interface Tunnel1/0/0
tunnel-protocol mpls te
destination 192.168.0.3
mpls te tunnel-id 1
mpls te path metric-type igp
mpls te igp metric absolute 1
mpls te commit
#
Which path will be selected when the tunnel becomes Up? What is the metric of this tunnel?
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