ISP/mpls networks, MTU limitation vs. AOS/CX and MACSec
Based on the ISP requirement/limitation they can only handle a Max Frame Size: 9192;
Inside the mpls network.
sh jumbos (AOS)
Configured : Max Frame Size : 9216 IP-MTU : 9198
In Use : Max Frame Size : 9216 IP-MTU : 9198
The CX states on a Physical interface:
SW(config-if)# mtu
- BYTES The MTU value in bytes in the range <46-9198> (Default: 1500)
The CX states on a SVI:
SW(config-if-vlan)# ip mtu
- <68-9198> The IP payload MTU value in bytes (Default: 1500)
What should the Max Frame Size/IP-MTU be set to on the SVI and or Physical,
for all MacSec frames to be traversed, understanding there is an overhead for the MacSec.