ERSPAN feature limitations
- The maximum number of mirroring sessions per device is four.
- VLAN mirroring is not supported.
- In some cases, speed mismatches may prevent mirroring of all traffic.
- You cannot terminate the Generic Routing Encapsulation (GRE) tunnel on an ICX switch. ERSPAN must be terminated on the host/analyzer.
- ERSPAN has not been tested against implementations by other vendors.
- Source-IP in the ERSPAN profile must belong to the default VRF. The non-default VRF does not support source-IP.