Configuring a label acceptance policy ······················································································································· 30

Configuring LDP loop detection ···································································································································· 31

Configuring LDP session protection ······························································································································ 32

Configuring LDP GR ······················································································································································· 33

Configuring LDP NSR ····················································································································································· 33

Configuring LDP-IGP synchronization ·························································································································· 33

Configuring LDP-OSPF synchronization ·············································································································· 33

Configuring LDP-ISIS synchronization ················································································································· 35

Configuring LDP FRR ······················································································································································ 35

Specifying a DSCP value for outgoing LDP packets ··································································································· 36

Resetting LDP sessions ···················································································································································· 36

Enabling SNMP notifications for LDP ··························································································································· 36

Displaying and maintaining LDP ·································································································································· 36

LDP configuration examples ·········································································································································· 37

LDP LSP configuration example ···························································································································· 37

Label acceptance control configuration example ······························································································ 41

Label advertisement control configuration example ·························································································· 45

LDP FRR configuration example ··························································································································· 51

Configuring MPLS TE ················································································································································· 54

Overview ········································································································································································· 54

TE and MPLS TE ····················································································································································· 54

MPLS TE basic concepts········································································································································ 54

Static CRLSP establishment ··································································································································· 54

Dynamic CRLSP establishment ····························································································································· 54

Traffic forwarding ·················································································································································· 56

Make-before-break ················································································································································ 57

Route pinning ························································································································································· 58

Tunnel reoptimization ············································································································································ 58

Automatic bandwidth adjustment ························································································································ 59

CRLSP backup ························································································································································ 59

FRR ·········································································································································································· 59

DiffServ-aware TE ·················································································································································· 60

Bidirectional MPLS TE tunnel ································································································································ 62

Protocols and standards ······································································································································· 63

MPLS TE configuration task list ····································································································································· 63

Enabling MPLS TE ·························································································································································· 64

Configuring a tunnel interface ······································································································································ 65

Configuring DS-TE ·························································································································································· 65

Configuring an MPLS TE tunnel to use a static CRLSP ································································································ 66

Configuring an MPLS TE tunnel to use a dynamic CRLSP ·························································································· 66

Configuration task list ··········································································································································· 67

Configuring MPLS TE attributes for a link ··········································································································· 67

Advertising link TE attributes by using IGP TE extension ··················································································· 68

Configuring MPLS TE tunnel constraints ·············································································································· 69

Establishing an MPLS TE tunnel by using RSVP-TE ····························································································· 71

Controlling CRLSP path selection ························································································································· 71

Controlling MPLS TE tunnel setup ························································································································ 74

Configuring load sharing for an MPLS TE tunnel········································································································ 76

Configuring traffic forwarding ······································································································································ 77

Configuring static routing to direct traffic to an MPLS TE tunnel or tunnel bundle ········································· 77

Configuring PBR to direct traffic to an MPLS TE tunnel or tunnel bundle························································· 78

Configuring automatic route advertisement to direct traffic to an MPLS TE tunnel or tunnel bundle ············ 78

Configuring a bidirectional MPLS TE tunnel ················································································································ 80

Configuring CRLSP backup ··········································································································································· 81