Hello we have site to site connetions on a layer2 domain.
cisco3560<----Layer 2 Hardware Encrytor-->ME3400-2CS-A<---Dot1Q tunnel--->ME3400-2CS-A<---LAyer 2 Hardware Encryptor---->Juniper EX 4200
I-am receiving Latencies from copynig from clients on juniper to clients to Cisco. The other side is ok.
MTU Jumbo on ME 3400 is 1800. Link is Gigabit. I havent changed the mtu on Encryptor and on Cisco nor Juniper .
As I googled and saw Juniper and Cisco have diffrent MTU 1518 on Juniper and 1500 on Cisco.
On Wireshirek I see TCP Previous segment lost, TCP Duplicate and TCP Fast retranssmission.
Any advice for this situation you think this is Fiber problem or MTU.
To be Clear everything worked k isnce two weeks before