Can you please share the type of SFP, type of connector LC/PC , SC/PC ..... Also try to change Tx, Rx from one side even if fiber are duplex. Best regards.
Hello Landry Hermann ISIS would be an option too to consider with BGP. Do you need also MP BGP for auto discovery of VPLS ? https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5000/vpn/63x/b-l2vpn-cg-ncs5000-63x/b-l2vpn-cg-ncs5000-63x_chapter_01001.html ...
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