Tom, We have a couple of VPLS instances b/t a Juniper M10i and an Alcatel7705. The difference seems to be 14. Unfortunately Alcatel does not have an "ignore-mtu-mismatch" switch.
We also turn on RSVP mtu path discovery (adspec and flowspec TLVs - records MTUs and reports back the lowest MTU found) on both Juniper and Alcatel, just to make sure our transport pipe will be big enough to handle layer2 vpn service mtu. ## Juniper [email protected]> show configuration routing-instances VPLS-CDP-1 instance-type vpls; interface ae0.1; protocols { vpls { encapsulation-type ethernet-vlan; no-tunnel-services; vpls-id 981; mtu 2034; ignore-mtu-mismatch; neighbor x.x.x.x; } } ## Alcatel vpls 981 customer 7 create service-mtu 2048 stp shutdown exit sap 1/1/7:1 create ingress qos 70 exit egress qos 70 exit exit mesh-sdp 3:981 vc-type vlan create exit no shutdown exit Good Luck, Eduardo Eduardo Barrios, EIT, JNCIS-SP IP/MPLS Telecommunications Specialist Lower Colorado River Authority | 3505 Montopolis Dr. | Austin, TX 78744 -----Original Message----- From: juniper-nsp [mailto:[email protected]] On Behalf Of Tomasz Mikolajek Sent: Wednesday, August 07, 2013 4:06 AM To: [email protected] Subject: [j-nsp] Juniper MX240 to Alcatel SAS-M epipe Hi All I am triing to configure link between MX240 and SAS-M. I want to terminate Alcatel epipe on MX. I used l2circuit to do this. I can ping address in the Internet but not every webpage work. I think the problem is in MTU in epipe. Alcatel has MTU 1522. How to calculate MTU size for MX? Thanks for help in advance. Current configuration: show protocols l2circuit traceoptions { file debug-l2circuit size 1m files 5; } neighbor 10.250.0.9 { interface ge-2/1/9.0 { virtual-circuit-id 11; ignore-mtu-mismatch; } interface ge-2/1/1.0 { virtual-circuit-id 12; mtu 1522; ignore-mtu-mismatch; } } _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
