Remote Mirroring Guidelines

The following are guidelines for remote mirroring:

• Configurations of remote mirroring, which might cause protocol packets to be remotely mirrored, are not recommended. Since all packet types are mirrored when you configure remote mirroring, remotely mirrored protocol packets may have undesirable affects on intermediate and destination switches. Blocking EDP packets on a remote mirroring VLAN is one example of a case where you must perform an extra action to accommodate the remote mirroring of protocol packets.

  For EDP configuration on the remote mirroring VLAN, in the intermediate and destination switches you need to install ACL to block the EDP packets on the remote mirroring VLAN. Use the following commands for installation:

  

  create access-list remote_edp " ethernet-destination-address 00:e0:2b:00:00:00 mask ff:ff:ff:ff:ff:ff ;" "deny" 
  conf access-list add "remote_edp" first vlan "remote_vlan"