Cisco ASR 900 Series User Manual

3000
Router(config-if)# tunnel mpls traffic-eng path-selection cost-limit 50
Router(config-if)# tunnel mpls traffic-eng bandwidth 200
Router(config-if)# tunnel mpls traffic-eng autoroute announce
Router(config-if)# tunnel mpls traffic-eng path-option 10 dynamic
Verifying Flex LSP Hop Count and Cost-Max Limit
Router# show mpls traffic-eng tunnels tunnel 1000 detail
Name: Router_t1000 (Tunnel1000) Destination: 56.6.6.6
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 40)
Lockout Info:
Locked Out: No
Config Parameters:
Bandwidth: 200 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: 5
Router# show mpls traffic-eng tunnels tunnel 3000 detail
Name: Router_t3000 (Tunnel3000) Destination: 56.6.6.6
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 40)
Lockout Info:
Locked Out: No
Config Parameters:
Bandwidth: 200 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: 50
The accumulated path cost for co-routed bidirectional LSP includes both, forward and reverse path cost.Note
Flex LSP ECMP min-fill, max-fill, random
MPLS TE chooses the least utilized path given the same accumulated path cost and hop count. However, in
Cisco IOS XE Everest 16.5.1, you can steer traffic to an alternate path, depending on:
Tie-breaker 1: min-fill (choose least-utilized path)
•
Smaller path cost value
•
Larger path minimum bandwidth
•
Smaller hop count value
•
Lexicographically selects a greater path bandwidth vector (bandwidth value is sorted in ascending order)
Tie-breaker 2: max-fill (choose most-utilized path)
•
Smaller path cost value
MPLS Basic Configuration Guide, Cisco IOS XE Everest 16.5.1 (Cisco ASR 900 Series)
161
Flex LSP Overview
Flex LSP ECMP min-fill, max-fill, random

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English