This command enables the selected port mirroring session. This command configures a probe port and a monitored port for monitor session (port monitoring).
A VLAN can be configured as the source to a session (all member ports of that VLAN are monitored). Remote port mirroring is configured by adding the RSPAN VLAN ID. At the source switch, the destination is configured as the RSPAN VLAN and at the destination switch, the source is configured as the RSPAN VLAN.
The source and destination cannot be configured as remote on the same device.
The commands described below add a mirrored port (source port) to a session identified with session-id. The session-id parameter is an integer value used to identify the session. The maximum number of sessions which can be configured is L7_MIRRORING_MAX_SESSIONS. Option rx is used to monitor only ingress packets. Option tx is used to monitor only egress packets. If no option is specified, both ingress and egress packets, RX and TX, are monitored.
A VLAN can also be configured as the source to a session (all the member ports of that VLAN are monitored).
If an interface participates in some VLAN and is a LAG member, this VLAN cannot be assigned as a source VLAN for a Monitor session. At the same time, if an interface participates in some VLAN and this VLAN is assigned as a source VLAN for a Monitor session, the interface can be assigned as a LAG member.
Remote port mirroring is configured by giving the RSPAN VLAN ID. At the source switch the destination is configured as RSPAN VLAN and at the destination switch the source is configured as RSPAN VLAN.
Note the following:
- Source and destination cannot be configured as remote on the same device.
- On the intermediate switch: RSPAN VLAN should be created, the ports connected towards the Source and Destination switch should have the RSPAN VLAN participation. RSPAN VLAN egress tagging should be enabled on interface on intermediate switch connected towards Destination switch.
| Default | None |
| Format | monitor session session-id mode |
| Mode | Global Config |
