Typical Examples Of Rspan - Planet XGS3-42000R User Manual

56.3 Typical Examples of RSPAN

Before RSPAN is invented, network administrators had to connect their P Cs directly to the switches, in order
to check the statistics of the net work.
However, with the help of RSPA N, the network administrators can c onfigure and supervise the switches
remot ely, which brings more efficiency. The figure below shows a sample application of RSPAN.
Source S witch
E1
PC1
Two configuration solutions can be chosen for RSPAN: the first is without reflector port, and the other is with
reflector port. For the first one, only one fixed port can be connected to the intermediate switch. However, no
reflector port has to be configured. This maximizes the usage of witch ports. For the latter one, the port
connected to the intermediate switch is not fixed. Datagrams can be broadcasted in the RSPAN VLA N
through the loopback, which is much more flexible.
The normal mode configuration is show as below:
Solution 1:
Source switch:
Interface ethernet 1/1 is the source port for mirroring.
Interface ethernet 1/2 is the destination port which is connected to the intermediate switch.
RSPAN VLA N is 5.
XGS 3-42000R(config)#vlan 5
XGS 3-42000R(config-Vlan5)#remote-span
XGS 3-42000R(config-Vlan5)#exit
XGS 3-42000R(config)#interface ethernet 1/2
XGS 3-42000R(config-If-Ethernet1/2)#switchport mode trunk
XGS 3-42000R(config-If-Ethernet1/2)#exit
XGS 3-42000R(config)#monitor session 1 source interface ethernet1/1 rx
XGS 3-42000R(config)#monitor session 1 destination interface et hernet1/ 2
XGS 3-42000R(config)#monitor session 1 remote vlan 5
Intermediate Switch
E2
E6
RSPAN Application Sample
Figure 56-3-1
56-4
Destination Switch
E9
E7
E10
Monitor