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