The configuration value of sr-te is added to the resolution-filter context of the igp-shortcut construct. When enabled, this value allows IGP to resolve IPv4 prefixes, IPv6 prefixes, and LDP IPv4 prefix FECs over SR-TE LSPs used as IGP shortcuts.
In addition, the value of any in the resolution-filter context allows the user to resolve IP prefixes and LDP FECs to either RSVP-TE or SR-TE LSPs used as IGP shortcuts.
A:Reno 194# configure router isis
igp-shortcut
[no] shutdown
tunnel-next-hop
family {ipv4, ipv6}
resolution {any|disabled|filter|match-family-ip}
resolution-filter
[no] rsvp
[no] sr-te
exit
exit
exit
exit
A:Reno 194# configure router ospf
igp-shortcut
[no] shutdown
tunnel-next-hop
family {ipv4}
resolution {any|disabled|filter|match-family-ip}
resolution-filter
[no] rsvp
[no] sr-te
exit
exit
exit
exit
A:Reno 194# configure router ospf3
igp-shortcut
[no] shutdown
tunnel-next-hop
family {ipv6}
resolution {any|disabled|filter}
resolution-filter
[no] rsvp
[no] sr-te
exit
exit
exit
exit
For tunneling LDP FECs over IGP shortcuts, the user must enable the tunneling option on the T-LDP sessions to the destinations of the SR-TE LSPs used as IGP shortcuts. See Family prefix resolution and tunnel selection rules for an explanation of the rules for the resolution of IPv4 prefixes, IPv6 prefixes, and LDP FECs, and for the selection of the tunnel types on a per family basis.