LevelOne GEL-1061, User Manual

Page: 132 / 500

Chapter 4
| Interface Configuration
Configuring Remote Port Mirroring
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RSPAN Limitations
The following limitations apply to the use of RSPAN on this switch:
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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.
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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.
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Spanning Tree – If the spanning tree is disabled, BPDUs will not be flooded
onto the RSPAN VLAN.
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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.
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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.
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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:
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Session – A number identifying this RSPAN session. (Range: 1-3)
Three sessions are allowed, including both local and remote mirroring, using
different VLANs for RSPAN sessions.
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Operation Status – Indicates whether or not RSPAN is currently functioning.
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Switch Role – Specifies the role this switch performs in mirroring traffic.
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None – This switch will not participate in RSPAN.
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Source - Specifies this device as the source of remotely mirrored traffic.