Quick Reference Guide

396 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Configuring port mirroring and monitoring
14
• If you configure both ACL mirroring and ACL based rate limiting on the same port, then all
packets that match are mirrored, including the packets that exceed the rate limit.
• Table 57 lists the number of mirror and monitor ports supported on the devices.
.
• You can configure a mirror port specifically as an ingress port, an egress port, or both.
• Mirror ports can run at any speed and are not related to the speed of the ingress or egress
monitored ports.
• The same port cannot be both a monitored port and the mirror port.
• The same port can be monitored by one mirror port for ingress traffic and another mirror port
for egress traffic.
• The mirror port cannot be a trunk port.
• The monitored port and its mirror port do not need to belong to the same port-based VLAN:
• If the mirror port is in a different VLAN from the monitored port, the packets are tagged
with the monitor port VLAN ID.
• If the mirror port is in the same VLAN as the monitored port, the packets are tagged or
untagged, depending on the mirror port configuration.
• More than one monitored port can be assigned to the same mirror port.
• If the primary interface of a trunk is enabled for monitoring, the entire trunk will be monitored.
You can also enable an individual trunk port for monitoring using the config-trunk-ind
command.
• For ingress ACL mirroring, the previous ingress rule also applies. The analyzer port setting
command acl-mirror-port must be specified for each port, even though the hardware only
supports one port per device. This applies whether the analyzer port is on the local device or
on a remote device. For example, when port mirroring is set to a remote device, any mirroring
(ACL, MAC filter, or VLAN) enabled ports are globally set to a single analyzer port, as shown in
the following example.
PowerConnect(config)# mirror ethernet 24
PowerConnect(config)# mirror ethernet 48
PowerConnect(config)# interface ethernet 1
PowerConnect(interface ethernet 1)# monitor ethernet 48 both
The analyzer port (48) is set to all devices in the system
PowerConnect# interface ethernet 2
PowerConnect(interface ethernet 2)# ip access-group 101 in
PowerConnect# exit
PowerConnect# interface ethernet 1
PowerConnect(interface ethernet 1)# acl-mirror-port ethernet 48
TABLE 57 Number of mirror and monitored ports supported
Port type Maximum ports
supported
PowerConnect
B-Series TI24X
Ingress mirror ports 1
Egress mirror ports 1
Ingress monitored ports no limit
Egress monitored ports no limit