Configuring LDP loop detection ······················································································································· 34
Configuring LDP GR ········································································································································ 36
Configuring LDP NSR ······································································································································ 36
Configuring LDP FRR ······································································································································ 38
Resetting LDP sessions ··································································································································· 39
Displaying and maintaining LDP ······················································································································ 39
Configuring MPLS TE ·················································································· 72
Overview ·························································································································································· 72
TE and MPLS TE ····································································································································· 72
MPLS TE basic concepts ························································································································· 72
Static CRLSP establishment ···················································································································· 72
Dynamic CRLSP establishment ··············································································································· 72
Traffic forwarding ····································································································································· 75
Make-before-break ··································································································································· 76
Route pinning ··········································································································································· 77
Tunnel reoptimization ······························································································································· 77
CRLSP backup ········································································································································· 77
FRR ·························································································································································· 77
DiffServ-aware TE ···································································································································· 78
Bidirectional MPLS TE tunnel ·················································································································· 80
Protocols and standards ·························································································································· 81
Enabling MPLS TE ··········································································································································· 83
Configuring a tunnel interface ·························································································································· 83
Configuring DS-TE ··········································································································································· 84
Configuration task list ······························································································································· 85
Configuring a PCE ··································································································································· 93
Discovering PCEs ···································································································································· 93
Configuring traffic forwarding ··························································································································· 95
ii