KB.15.15

Example 110 Remote mirroring using a classifier-based policy

In the network shown in Figure 186 (page 361), an administrator has connected a traffic analyzer

to port A15 (in VLAN 30) on switch C to monitor the TCP traffic to the server at 10.10.30.153

from workstations connected to switches A and B. Remote mirroring sessions are configured on

switches A and B, and a remote mirroring endpoint on switch C. TCP traffic is routed through the

network to the server from VLANs 10 and 20 on VLAN 30.

Figure 186 Sample topology in a remote mirroring session

To configure this remote mirroring session using a classifier-based policy to select inbound TCP

traffic on two VLAN interfaces, take the following steps:

1. On remote switch C, configure a remote mirroring endpoint using port A15 as the exit port

(as described in “Configure a mirroring destination on a remote switch” (page 349).)

Figure 187 Configuring a remote mirroring endpoint: remote switch and exit port

2. On source switch A, configure an association between the remote mirroring endpoint on

switch C and a mirroring session on switch A (as described in “Configure a mirroring session

on the source switch” (page 350).)

3. On switch A, configure a classifier-based mirroring policy to select inbound TCP traffic destined

to the server at 10.10.30.153, and apply the policy to the interfaces of VLAN 10 (as described

in “About selecting inbound traffic using advanced classifier-based mirroring” (page 354).)

Figure 188 Configuring a classifier-based policy on source switch A

Classifier-based mirroring configuration 361