Considerations for SLX 9740/Extreme 8820 devices

IPV6 ACL based Egress Mirroring is not supported due to hardware limitations across all SPAN types. Only four (4) hardware SPAN sessions are supported. Of the four (4) session, one (1) is reserved for the session created by the legacy acl-mirror command.

These are the limitations for ERSPAN mirroring.

In SLX 9740/Extreme 8820 if ingress and egress ERSPAN mirroring is configured to same ERSPAN destination, then the direction field in ERSPAN type 3 header will not have correct values for the mirrored flow.
ERSPAN ID cannot be set for port based ERSPAN due to hardware limitations.
For ingress mirroring, copying of VLAN and COS field from original frame to ERSPAN type3 header of mirrored copy is supported for flow based ERSPAN. It is not supported for Port based ERSPAN and is a hardware limitation.