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DES-7200 Configuration Guide Chapter 5 SPAN
Configuration
Topology for one-to-many SPAN application
5.6.1.2 Application requirement
Achieve one-to-many mirror on a single device, namely both PC 1 and PC 2 can
monitor the flow sent and received on the server port.
5.6.1.3 Configuration tips
1. Create Remote VLAN on the device (Switch A)
2. Configure the device (Switch A) as the source device of RSPAN and
he server-connecting port (Gi 4/1) as the source port; select one port
(Gi 4/2) in Down state as the egress port, add this port to Remote VLAN and
cted with PC1 and PC2 into Remote VLAN.
configure t
configure MAC loopback.
3. Join the ports directly conne
port joining R
Caution
1. This example only applies to DES-7200 series.
2. Configuring MAC loopback on the egress port will allow the
irror dataflow in Remote VLAN, so that any
emote VLAN can monitor the source port,
allowing one-to-many mirroring. If the source device is
connected with multiple devices, we can configure Remote
connected devices to realize remote SPAN.
5.6.1.4 Configuration Steps
broadcasting of m
VLAN on the inter
Step 1: Configure Remote VLAN on the associated devices.
reate Remote VLAN 100 on Switch A.
config)#vlan 100
ce device.
igure this device as the source
ectional
ig)#monitor session 1 remote-source
ion 1 source interface gigabitEthernet 4/1 both
ote
! C
SwitchA#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
SwitchA(
SwitchA(config-vlan)#remote-span
SwitchA(config-vlan)#exit
Step 2: Configure RSPAN sour
! On Switch A, create RSPAN Session 1; conf
device and configure Gi 4/1 as the source port for mirroring bidir
dataflow.
SwitchA(conf
SwitchA(config)#monitor sess
! On Switch A, configure Gi 4/2 as the egress port and join the port into Rem
VLAN 100; configure MAC loopback. We can find out that the port state
changes from Down to Up.
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