MPLS Basic Configuration Guide, Cisco IOS XE 17 (Cisco ASR 920 Series)

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Updated:: December 1, 2020

Chapter: Feature History

Feature History

Feature History

The following table lists the new and modified features supported in the MPLS Basic Configuration Guide in Cisco IOS XE 17 releases.


Feature	Description
Cisco IOS XE Bengaluru 17.4.1
Re-optimization with Tunnel Bandwidth Modification on Flex-LSP Protect Path	This feature supports Make Before Break (MBB) functionality and thus ensures there is no traffic loss when a MPLS Flex LSP tunnel runs on protect LSP (if working LSP goes down) and the tunnel bandwidth is modified. When the working LSP comes up, use the following command to manually switch from the working to protect LSP: mpls traffic-eng switch tunnel `tunnel-ID`

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