From alcansp at marenda.net Fri Oct 13 09:37:28 2017 From: alcansp at marenda.net (alcansp at marenda.net) Date: Fri, 13 Oct 2017 15:37:28 +0200 Subject: [alcatel-nsp] paket-los on simple eline SAS7210 Message-ID: <000301d34428$69bd9890$3d38c9b0$@net> Hi list, i have three SAS-R6/R12 connect thru 10G links WAN, mpls, ospf. I just configured one epipe from location A, 1G port as access-SAP, default MTU 1514 , to location B, 1G port as access-dotq-SAP therefore MTU 1518, Service-mtu 1514. Everything looks good. But after some time, we realized a paket-lost of 20-25%. Looking at the counters (after synchronized ?clear? commands), We can see that the packet count of the SDP on device B incoming Is equal to the packet count of SDP in device A outgoing Is equal to the packet count of SAP/PORT on device A incoming. But the packet Count of SAP/PORT on device B outgoing reflects the loss. We can not find any error/drop/ counters ! WAN is not overbooked and should result in SDP-in on B being lower than SDP-out on A . Too-Big Pakets should be dropped on A PORT/SAP incoming, So should not get transmitted thru MPLS to B. Setting all MTUs the the system Maximum solves this Problem , So I have a workaround. Any ideas what is going wrong ? Thank you for your help, Juergen. -------------- next part -------------- An HTML attachment was scrubbed... URL: