Monitoring and Analyzing Switch Operation

Traffic Mirroring

The following commands are not supported: monitor mac 111111-222222 src mirror 3 monitor mac 111111-222222 dest mirror 4

In addition, if you enter the monitor mac 111111-222222 both mirror 1 com­ mand, you cannot use the MAC address 111111-222222 in any other monitor mac mirror configuration commands on the switch.

■To re-use a MAC address that has already been configured as a source and/or destination address for traffic selection in a mirror session, you must first remove the configuration by entering the no form of the com­ mand, and then re-enter the MAC address in a new monitor mac mirror command.

For example, if you have already configured MAC address 111111-222222to filter inbound and outbound mirrored traffic, and decide to use it to filter only inbound traffic in a mirror session, you could enter the follow­ ing commands:

monitor mac 111111-222222 both mirror 1 no monitor mac 111111-222222 both mirror 1 monitor mac 111111-222222 src mirror 1

■A mirroring session in which you configure MAC-based mirroring is not supported on a port, trunk, mesh or VLAN interface on which a mirroring session with a classifier-based mirroring policy is configured.

Selecting Inbound Traffic Using AdvancedClassifier-Based Mirroring

In software release K.14.01 or greater, in addition to the traffic selection options described in “4. Configure the Monitored Traffic in a Mirror Session” on page B-55,traffic mirroring supports the use of advanced classifier-based functions that provide:

■A finer granularity for selecting the inbound IP traffic that you want to mirror on an individual port or VLAN interface (instead of mirroring all inbound traffic on the interface)

■Support for mirroring both IPv4 and IPv6 traffic

■The ability to re-use the same traffic classes in different software-feature configurations; for example, you can apply both a QoS rate-limiting and mirroring policy on the same class of traffic.

B-66