MPLS TE

R2 (Lo-2.2.2.2) ------ R3( Lo-3.3.3.3) ------ R4 (Lo-4.4.4.4)

MPLS TE - DYNAMIC between is created between R4-R2

R4#

int tu42

mpls traffice-eng autoroute-announce

OR

r4

ip route 2.2.2.2 255.255.255.255 tunn42

 

 

Comments

  • They are both valid ways to use a TE tunnel as far as I know.

    the first method advertises the tunnel into the IGP you are using in the core (OSPF or IS-IS)

    the second method lets you statically use the tunnel

     

    ultimately, which method you will use will depend on how the question is being asked .

     

    Cheers

  • Both are vaild methods of link admission.

    But be sure to have static route on both ends of tunnel; i.e on R2 as well if

    you want the traffic to traverse Tunnel in other direction too.

  • If autoroute announce configured then

    for ipv6 mutli-topoly is required

    AND

    for multicasting ---- mpls traffic-engi multicast-intact is required.

    CORRECT..

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