ii
Configuring LDP-IGP synchronization ············································································································· 33
Configuring LDP-OSPF synchronization ·································································································· 34
Configuring LDP IS-IS synchronization ···································································································· 35
Setting a DSCP value for outgoing LDP packets ····························································································· 35
Resetting LDP sessions ··································································································································· 36
Enabling SNMP notifications for LDP ·············································································································· 36
Displaying and maintaining LDP ······················································································································ 36
IPv4 LDP configuration examples ···················································································································· 37
LDP LSP configuration example ·············································································································· 37
Label acceptance control configuration example ····················································································· 41
Label advertisement control configuration example ················································································· 45
IPv6 LDP configuration examples ···················································································································· 50
IPv6 LDP LSP configuration example ······································································································ 50
IPv6 label acceptance control configuration example ·············································································· 55
IPv6 label advertisement control configuration example ·········································································· 60
Configuring MPLS TE ··················································································· 66
Overview ·························································································································································· 66
TE and MPLS TE ····································································································································· 66
MPLS TE basic concepts ························································································································· 66
Static CRLSP establishment ···················································································································· 66
Dynamic CRLSP establishment ··············································································································· 66
CRLSP establishment using PCE path calculation ·················································································· 68
Traffic forwarding ····································································································································· 69
Make-before-break ··································································································································· 70
Route pinning ··········································································································································· 71
Tunnel reoptimization ······························································································································· 71
CRLSP backup ········································································································································· 71
FRR ·························································································································································· 71
DiffServ-aware TE ···································································································································· 72
Bidirectional MPLS TE tunnel ·················································································································· 74
Protocols and standards ·························································································································· 75
MPLS TE configuration task list ······················································································································· 75
Enabling MPLS TE ··········································································································································· 77
Configuring a tunnel interface ·························································································································· 77
Configuring DS-TE ··········································································································································· 78
Configuring an MPLS TE tunnel to use a static CRLSP ·················································································· 78
Configuring an MPLS TE tunnel to use a dynamic CRLSP ············································································· 79
Configuration task list ······························································································································· 79
Configuring MPLS TE attributes for a link ································································································ 79
Advertising link TE attributes by using IGP TE extension ········································································ 80
Configuring MPLS TE tunnel constraints ································································································· 81
Establishing an MPLS TE tunnel by using RSVP-TE ··············································································· 83
Controlling CRLSP path selection ············································································································ 83
Controlling MPLS TE tunnel setup ··········································································································· 85
Configuring an MPLS TE tunnel to use a CRLSP calculated by PCEs ··························································· 87
Configuring a PCE ··································································································································· 87
Discovering PCEs ···································································································································· 87
Establishing a CRLSP by using the path calculated by PCEs ································································· 87
Establishing a backup CRLSP by using the path calculated by PCEs ····················································· 88
Configuring PCEP session parameters ···································································································· 88
Configuring traffic forwarding ··························································································································· 89
Configuring static routing to direct traffic to an MPLS TE tunnel ······························································ 89
Configuring automatic route advertisement to direct traffic to an MPLS TE tunnel ·································· 89
Configuring a bidirectional MPLS TE tunnel ···································································································· 90
Configuring CRLSP backup ····························································································································· 91
Configuring MPLS TE FRR ······························································································································ 91
Enabling FRR ··········································································································································· 91
Configuring a bypass tunnel on the PLR ·································································································· 92
Configuring node fault detection ·············································································································· 96
Setting the optimal bypass tunnel selection interval ················································································ 96
Enabling SNMP notifications for MPLS TE ······································································································ 96