Edge-Core ECS4810-12M Layer 2, Management Manual

Page: 139 / 1236

C
HAPTER
5
| Interface Configuration
Port Configuration
– 139 –
C
OMMAND
U
SAGE
◆
Traffic can be mirrored from one or more source ports to a destination
port on the same switch (local port mirroring as described in
"Configuring Local Port Mirroring" on page 136 ), or from one or more
source ports on remote switches to a destination port on this switch
(remote port mirroring as described in this section).
◆
Configuration Guidelines
Take the following step to configure an RSPAN session:
1.
Use the VLAN Static List (see "Configuring VLAN Groups" on
page 178 ) to reserve a VLAN for use by RSPAN (marking the
“Remote VLAN” field on this page. (Default VLAN 1 is prohibited.)
2.
Set up the source switch on the RSPAN configuration page by
specifying the mirror session, the switch’s role (Source), the RSPAN
VLAN, and the uplink port
1
. Then specify the source port(s), and the
traffic type to monitor (Rx, Tx or Both).
3.
Set up all intermediate switches on the RSPAN configuration page,
entering the mirror session, the switch’s role (Intermediate), the
RSPAN VLAN, and the uplink port(s).
4.
Set up the destination switch on the RSPAN configuration page by
specifying the mirror session, the switch’s role (Destination), the
destination port
1
, 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.
1. Only 802.1Q trunk or hybrid (i.e., general use) ports can be configured as an RSPAN
uplink or destination ports – access ports are not allowed (see
"Adding Static Members to
VLANs" on page 180 ).