I m facing an issue in my network. I ve two links bundled in a multilink between 7206 (on PA-MC) and 1841. OSPF and MPLS are running over the multilink. L3 MPLS VPN customer VRF is terminated on 1841 (acting as PE) and trying to access a remote location. 1841 connects to the remaining network via 7206 Multilink only. L2 MTU of Multilink and E1's are 1500, MPLS MTU on multilink set to 1546 bytes. From 1841 (acting as PE), Maximum MTU i'm able to ping for customer remote end with VRF is 1496 bytes. To make it happen on 1500 bytes with Df-bit set, i ve to increase the L2 MTU of multilink by 4 bytes.
I would like to know, whether increasing the L2 MTU of multilink is the only solution available to this option or any other available.
thanks in advance