This office has a network consisting of Cisco Catalyst and Juniper EX L3 switch. Cisco Router and Juniper L3 switch share a OSPF area in between them.
Hosts on Juniper side are running FTP servers and are keep running into packet loss that causes extra overhead to resend lost packets. Not sure what the problem is.
I thought MTU difference between the switches might be causing the frames to be lost. But I've heard MTU size difference is minor and can be ignored, but is this practical?
Did anyone get around adjusting MTU size for the inter-vendor switches? Or am I just imagining this problem?
One of output from Cisco to Juniper:
980 bytes from 192.168.21.100: icmp_seq=0 ttl=255 time=11.49 ms 980 bytes from 192.168.21.100: icmp_seq=1 ttl=255 time=3.765 ms
MTU on both sides are 1500.