MPLS Traffic Engineering (TE) autoroute destination automatically installs a static route for your TE tunnel’s destination (tailend router). This saves you the hassle of manually configuring a static route.
Configuration
Let’s try this out. This is the topology we’ll use:

Routers PE1, P1, P2, P3, and PE2 run MPLS TE. We have a TE tunnel where PE1 is the headend and PE2 is the tailend router. I use Cisco IOS XE Software, Version 17.03.04a.
- Configurations
- CE1
- CE2
- P1
- P2
- P3
- PE1
- PE2
Want to take a look for yourself? Here you will find the startup configuration of each device.
Let’s check the tunnel:
PE1#show mpls traffic-eng tunnels Tunnel 1
Name: PE1_t1 (Tunnel1) Destination: 6.6.6.6
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 1, type dynamic (Basis for Setup, path weight 20)
Config Parameters:
Bandwidth: 750 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
Path-selection Tiebreaker:
Global: not set Tunnel Specific: not set Effective: min-fill (default)
Hop Limit: disabled
Cost Limit: disabled
Path-invalidation timeout: 10000 msec (default), Action: Tear
AutoRoute: disabled LockDown: disabled Loadshare: 750 [2666666] bw-based
AutoRoute destination: enabled
auto-bw: disabled
Fault-OAM: disabled, Wrap-Protection: disabled, Wrap-Capable: No
Active Path Option Parameters:
State: dynamic path option 1 is active
BandwidthOverride: disabled LockDown: disabled Verbatim: disabled
Node Hop Count: 2
InLabel : -
OutLabel : GigabitEthernet2, 16
Next Hop : 192.168.23.3
RSVP Signalling Info:
Src 2.2.2.2, Dst 6.6.6.6, Tun_Id 1, Tun_Instance 20
RSVP Path Info:
My Address: 192.168.23.2
Explicit Route: 192.168.23.3 192.168.36.3 192.168.36.6 6.6.6.6
Record Route: NONE
Tspec: ave rate=750 kbits, burst=1000 bytes, peak rate=750 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=750 kbits, burst=1000 bytes, peak rate=750 kbits
Shortest Unconstrained Path Info:
Path Weight: 20 (TE)
Explicit Route: 192.168.23.2 192.168.23.3 192.168.36.3 192.168.36.6
6.6.6.6
History:
Tunnel:
Time since created: 14 minutes, 19 seconds
Time since path change: 10 minutes, 25 seconds
Number of LSP IDs (Tun_Instances) used: 20
Current LSP: [ID: 20]
Uptime: 10 minutes, 25 seconds
- Unit 1: Introduction
- Unit 2: LDP (Label Distribution Protocol)
- Unit 3: MPLS VPN
- VRFs (Virtual Routing and Forwarding)
- MPLS L3 VPN Explained
- MPLS L3 VPN Configuration
- MPLS L3 VPN BGP Allow AS in
- MPLS L3 VPN BGP AS Override
- MPLS L3 VPN PE-CE RIP
- MPLS L3 VPN PE-CE EIGRP
- MPLS L3 VPN PE-CE OSPF
- MPLS L3 VPN PE-CE OSPF Default Route
- MPLS L3 VPN PE-CE OSPF Global Default Route
- MPLS L3 VPN PE-CE OSPF Sham Link
- VRF Lite Route Leaking
- MPLS VPN Extranet Route Leaking
- MPLS VPN VRF Export Map
- MPLS VPN VRF Import Map
- MPLS over FlexVPN
- Unit 4: MPLS L2 Encapsulation
- Unit 5: IPv6 MPLS
- Unit 6: MPLS Traffic Engineering (TE)
- Introduction to MPLS Traffic Engineering (TE)
- MPLS Traffic Engineering (TE) IS-IS Configuration
- MPLS Traffic Engineering (TE) OSPF Configuration
- MPLS TE RSVP-TE
- MPLS TE Static Routes
- MPLS TE Policy Based Routing (PBR)
- MPLS TE Autoroute Announce
- MPLS TE Autoroute Destination
- MPLS TE Autoroute Metric
- MPLS TE Unequal Cost Load Balancing
- MPLS TE Load Balancing between IGP and TE
- MPLS TE Forwarding Adjacency
- MPLS TE Path Options Explicit
- MPLS TE Class-Based Tunnel Selection (CBTS)
- MPLS TE Metric
- MPLS TE Setup and Hold Priority
- MPLS TE Attribute Flag and Affinity
- MPLS TE Reoptimization
- MPLS TE Fast Reroute (FRR)
- MPLS TE Fast Reroute Path Link Protection
- MPLS TE Fast Reroute Path Node Protection
- MPLS TE FRR RSVP Hello Support
- MPLS TE DiffServ Aware (DS-TE) Traditional
- MPLS TE Diffserv-Aware (DS-TE) IETF Mode
- MPLS VPN over MPLS TE Tunnels
- MPLS TE Per VRF TE tunnel