GB Link shifting This topic has 0 replies, 1 voice, and was last updated 5 years, 7 months ago by Sooraj. Viewing 1 post (of 1 total) Author Posts 27th June 2017 at 08:25 #70041 SoorajGuest GB link not coming up when tried to shift from SDH mux to NPT mux. VLANs configured (2 CVLANs and 1 SVLAN) are same. MPBN end also same VLANs and IPs used. Any suggestions? Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.