Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual

Page 732

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682

Brocade 6910 Ethernet Access Switch Configuration Guide

53-1002581-01

Port Configuration

33

4. Set up the destination switch on the RSPAN configuration page by specifying the mirror

session, the switch’s role (Destination), the destination port

12

, whether or not the traffic

exiting this port will be tagged or untagged, and the RSPAN VLAN. Then specify each uplink
port where the mirrored traffic is being received.

RSPAN Limitations

The following limitations apply to the use of RSPAN on this switch:

RSPAN Ports – Only ports can be configured as an RSPAN source, destination, or uplink;
static and dynamic trunks are not allowed. A port can only be configured as one type of
RSPAN interface – source, destination, or uplink. Also, note that the source port and
destination port cannot be configured on the same switch.

Local/Remote Mirror – The destination of a local mirror session (created on the
Interface > Port > Mirror page) cannot be used as the destination for RSPAN traffic.

Spanning Tree – If the spanning tree is disabled, BPDUs will not be flooded onto the
RSPAN VLAN.

MAC address learning is not supported on RSPAN uplink ports when RSPAN is enabled on
the switch. Therefore, even if spanning tree is enabled after RSPAN has been configured,
MAC address learning will still not be re-started on the RSPAN uplink ports.

IEEE 802.1X – RSPAN and 802.1X are mutually exclusive functions. When 802.1X is
enabled globally, RSPAN uplink ports cannot be configured, even though RSPAN source
and destination ports can still be configured. When RSPAN uplink ports are enabled on the
switch, 802.1X cannot be enabled globally.

Port Security – If port security is enabled on any port, that port cannot be set as an RSPAN
uplink port, even though it can still be configured as an RSPAN source or destination port.
Also, when a port is configured as an RSPAN uplink port, port security cannot be enabled
on that port.

Parameters

These parameters are displayed:

Session – A number identifying this RSPAN session. (Range: 1)

Only one mirror session is allowed, including both local and remote mirroring. If local mirroring
is enabled (see

page 679

), then no session can be configured for RSPAN.

Operation Status – Indicates whether or not RSPAN is currently functioning.

Switch Role – Specifies the role this switch performs in mirroring traffic.

None – This switch will not participate in RSPAN.

Source - Specifies this device as the source of remotely mirrored traffic.

Intermediate - Specifies this device as an intermediate switch, transparently passing
mirrored traffic from one or more sources to one or more destinations.

Destination - Specifies this device as a switch configured with a destination port which is
to receive mirrored traffic for this session.

Remote VLAN – The VLAN to which traffic mirrored from the source port will be flooded. The
VLAN specified in this field must first be reserved for the RSPAN application using the VLAN >
Static page (see

page 722

).

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