ii
Configuring a label advertisement policy ··················································································································· 29
Configuring a label acceptance policy ······················································································································· 30
Configuring LDP loop detection ···································································································································· 31
Configuring LDP session protection ······························································································································ 31
Configuring LDP GR ······················································································································································· 32
Configuring LDP NSR ····················································································································································· 32
Configuring LDP-IGP synchronization ·························································································································· 32
Configuring LDP-OSPF synchronization ·············································································································· 33
Configuring LDP-ISIS synchronization ················································································································· 34
Configuring LDP FRR ······················································································································································ 35
Resetting LDP sessions ···················································································································································· 35
Enabling SNMP notifications for LDP ··························································································································· 35
Displaying and maintaining LDP ·································································································································· 35
LDP configuration examples ·········································································································································· 36
LDP LSP configuration example ···························································································································· 36
Label acceptance control configuration example ······························································································ 40
Label advertisement control configuration example ·························································································· 44
LDP FRR configuration example ··························································································································· 49
Configuring MPLS TE ················································································································································· 53
Overview ········································································································································································· 53
TE and MPLS TE ····················································································································································· 53
MPLS TE basic concepts········································································································································ 53
Static CRLSP establishment ··································································································································· 53
Dynamic CRLSP establishment ····························································································································· 53
Traffic forwarding ·················································································································································· 55
Make-before-break ················································································································································ 56
Route pinning ························································································································································· 57
Tunnel reoptimization ············································································································································ 57
Automatic bandwidth adjustment ························································································································ 57
CRLSP backup ························································································································································ 58
FRR ·········································································································································································· 58
DiffServ-aware TE ·················································································································································· 59
Bidirectional MPLS TE tunnel ································································································································ 61
Protocols and standards ······································································································································· 62
MPLS TE configuration task list ····································································································································· 62
Enabling MPLS TE ·························································································································································· 63
Configuring a tunnel interface ······································································································································ 64
Configuring DS-TE ·························································································································································· 64
Configuring an MPLS TE tunnel to use a static CRLSP ································································································ 65
Configuring an MPLS TE tunnel to use a dynamic CRLSP ·························································································· 65
Configuration task list ··········································································································································· 66
Configuring MPLS TE attributes for a link ··········································································································· 66
Advertising link TE attributes by using IGP TE extension ··················································································· 67
Configuring MPLS TE tunnel constraints ·············································································································· 68
Establishing an MPLS TE tunnel by using RSVP-TE ····························································································· 70
Controlling CRLSP path selection ························································································································· 70
Controlling MPLS TE tunnel setup ························································································································ 72
Configuring traffic forwarding ······································································································································ 75
Configuring static routing to direct traffic to an MPLS TE tunnel ······································································ 75
Configuring automatic route advertisement to direct traffic to an MPLS TE tunnel ········································· 75
Configuring a bidirectional MPLS TE tunnel ················································································································ 76
Configuring CRLSP backup ··········································································································································· 77
Configuring MPLS TE FRR ·············································································································································· 78
Enabling FRR ·························································································································································· 78
