ii
Configuring LDP-OSPF synchronization ················································································· 31
Configuring LDP-ISIS synchronization ··················································································· 32
Configuring LDP FRR ··············································································································· 33
Resetting LDP sessions ············································································································ 33
Enabling SNMP notifications for LDP ··························································································· 33
Displaying and maintaining LDP ·································································································· 34
LDP configuration examples ······································································································· 34
LDP LSP configuration example ··························································································· 34
Label acceptance control configuration example ······································································ 38
Label advertisement control configuration example ··································································· 42
LDP FRR configuration example ··························································································· 47
Configuring MPLS TE ····································································· 51
Overview ································································································································ 51
TE and MPLS TE ·············································································································· 51
MPLS TE basic concepts ···································································································· 51
Static CRLSP establishment ································································································ 51
Dynamic CRLSP establishment ···························································································· 51
Traffic forwarding ·············································································································· 53
Make-before-break ············································································································ 54
Route pinning ··················································································································· 55
Tunnel reoptimization ········································································································· 55
Automatic bandwidth adjustment ·························································································· 55
CRLSP backup ················································································································· 56
FRR ······························································································································· 56
DiffServ-aware TE ············································································································· 57
Bidirectional MPLS TE tunnel ······························································································· 59
Protocols and standards ····································································································· 59
MPLS TE configuration task list ··································································································· 60
Enabling MPLS TE ··················································································································· 61
Configuring a tunnel interface ····································································································· 61
Configuring DS-TE ··················································································································· 61
Configuring an MPLS TE tunnel to use a static CRLSP ···································································· 62
Configuring an MPLS TE tunnel to use a dynamic CRLSP ································································ 63
Configuration task list ········································································································· 63
Configuring MPLS TE attributes for a link ··············································································· 63
Advertising link TE attributes by using IGP TE extension ··························································· 64
Configuring MPLS TE tunnel constraints ················································································ 65
Establishing an MPLS TE tunnel by using RSVP-TE ································································· 67
Controlling CRLSP path selection ························································································· 67
Controlling MPLS TE tunnel setup ························································································ 69
Configuring traffic forwarding ······································································································ 72
Configuring static routing to direct traffic to an MPLS TE tunnel ··················································· 72
Configuring automatic route advertisement to direct traffic to an MPLS TE tunnel ···························· 72
Configuring a bidirectional MPLS TE tunnel ··················································································· 73
Configuring CRLSP backup ········································································································ 74
Configuring MPLS TE FRR ········································································································ 74
Enabling FRR ··················································································································· 75
Configuring a bypass tunnel on the PLR ················································································· 75
Configuring node fault detection ··························································································· 79
Configuring the optimal bypass tunnel selection interval ···························································· 79
Displaying and maintaining MPLS TE ··························································································· 79
MPLS TE configuration examples ································································································ 80
Establishing an MPLS TE tunnel over a static CRLSP ······························································· 80
Establishing an MPLS TE tunnel with RSVP-TE ······································································· 85
Establishing an inter-AS MPLS TE tunnel with RSVP-TE ··························································· 91
Bidirectional MPLS TE tunnel configuration example ································································· 98
CRLSP backup configuration example ················································································· 104
Manual bypass tunnel for FRR configuration example ····························································· 108
Auto FRR configuration example ························································································ 114
IETF DS-TE configuration example ····················································································· 120
Troubleshooting MPLS TE ······································································································· 127
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