Mirror sources and destinations have the following characteristics for 7210 SAS devices:
The source and destination can be on the same router (local) or on two different routers (remote). Mirrored packets are transported as follows:
local mirroring
The 7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C use VLANs (using a null, dot1q, or Q1.* SAP) for transport. For more information about mirror destination support of 7210 SAS platforms, see the final bullet point in this list.
remote mirroring
The 7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C use MPLS SDP bindings for transport
Mirror destinations can terminate on egress virtual ports, which allow multiple mirror destinations to send to the same packet decoding device, delimited by IEEE 802.1Q (referred to as dot1q) tags. This is helpful when troubleshooting a multi-port issue within the network.
Packets ingressing a port can have a mirror destination separate from packets egressing the same or a different port (the ports can be on separate nodes).
Multiple mirror destinations are supported (local or remote) on some platforms.
The number of mirror sources and destinations is different on different platforms. For the number of mirror destinations and sources supported on a platform, contact a Nokia representative.
The operational state of a mirror destination depends on the state of all the outputs of the mirror. The mirror destination will go operationally down if all the outputs are down (for example, all mirror-dest>sap and mirror-dest>spoke-sdp entities are down). The state of a mirror destination does not depend on inputs, such as SDPs that are configured under mirror-dest>remote-source or debug>mirror-source entries.
The mirror destination support available on the 7210 SAS platforms is as follows:
On the 7210 SAS-D and 7210 SAS-Dxp, you can use a null SAP or a dot1q SAP or a Q1.* SAP as the mirror destination for local mirroring. Use of the dot1q SAP or a Q1.* SAP as the mirror destination allows the mirror traffic to share the same uplink as the service traffic when the uplinks are L2 based. When using a dot1q SAP or a Q1.* SAP as the mirror destination, you must dedicate the resources of a port for use with the mirror application For more information, see Configuration guidelines.
On the 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C, you can use a null SAP or a dot1q SAP or a Q1.* SAP as the mirror destination for local mirroring. Use of a dot1q SAP or a Q1.* SAP as the mirror destination allows the mirror traffic to share the same uplink as the service traffic when the uplinks are L2 based.
On the 7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C, remote destination is supported.