Configuring I-SID Monitoring

Use the following procedure to configure Fabric RSPAN (Mirror to I-SID) on the Backbone Edge Bridge (BEB) connected to the monitor station.

Note

Note

Do not configure the source of mirrored traffic (mirroring to an I-SID) and the analyzer (monitoring an I-SID) on the same local device with the same I-SID offset. If you require mirroring and monitoring on the same local device, use standard port-based mirroring instead of Fabric RSPAN. Fabric RSPAN mirrors traffic into an I-SID of the SPB Fabric network and monitors traffic on the remote device; the network analyzer resides on the remote monitoring device and not on the same local device.

Note

Note

If you change the egress port or egress MLT for a particular session using a separate CLI command, it overwrites the existing egress port list or egress MLT.

Procedure

  1. Enter Global Configuration mode:

    enable

    configure terminal

  2. Create a monitor by I-SID entry:

    monitor-by-isid <1–1000> [monitor-isid-offset <1-1000> {egress-mlt <1–512> | egress-ports {slot/port[/sub-port][-slot/port[/sub-port]][,...]}} [map-to-vid <1–4093>]]

  3. Configure map to VLAN ID:

    monitor-by-isid <1–1000> map-to-vid <1–4093>

  4. Configure egress MLT:

    monitor-by-isid <1–1000> egress-mlt <1–512>

  5. Configure egress port:

    monitor-by-isid <1–1000> egress-ports {slot/port[/sub-port][-slot/port[/sub-port]][,...]}

  6. Enable monitoring by I-SID entry:

    monitor-by-isid <1–1000> enable

    Note

    Note

    Disable the entries (egress ports, MLT, and VLAN ID) to modify or remove parameters in the existing configuration.

Example

Switch:1> enable
Switch:1# configure terminal
Switch:1(config)# monitor-by-isid 1 monitor-isid-offset 1 egress-port 1/6
Switch:1(config)# monitor-by-isid 2 monitor-isid-offset 2 egress-port 1/7 map-to-vid 200
Switch:1(config)# monitor-by-isid 3 monitor-isid-offset 3 egress-port 1/7 map-to-vid 201
Switch:1(config)# monitor-by-isid 2 egress-port 1/8
Switch:1(config)# monitor-by-isid 1 monitor-isid-offset 1000 egress-ports 1/1 egress-mlt 16 map-to-vid 1000
Switch:1(config)# monitor-by-isid 7 monitor-isid-offset 7 egress-mlt 2 map-to-vid 203
Switch:1(config)# monitor-by-isid 2 egress-mlt 3

Variable Definitions

The following table defines parameters for the monitor-by-isid command.

Variable

Value

<1–1000>

Specifies the monitoring session.

monitor-isid-offset <1-1000>

Specifies the offset ID that is mapped to the actual monitor I-SID where packets are mirrored.

Monitor I-SID = Base monitor I-SID + Offset ID.

The base monitor I-SID is 16776000.

egress-ports {slot/port[/sub-port] [-slot/port[/sub-port]] [,...]}

Specifies the port to which the analyzers connect.

egress-mlt <1–512>

Specifies the MLT to which the analyzers connect.

map-to-vid <1–4093>

Maps the mirrored packet to a specified VLAN ID for analysis. This parameter is optional.