Brocade TurboIron 24X Series Configuration Guide - Manual (Page 269)

Brocade TurboIron 24X Series Configuration Guide 235
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Basic management
To determine the available clear commands for the system, enter the following command.
TurboIron#clear ?
Syntax: clear <option>
You also can enter “clear” at the command prompt, then press the TAB key.
NOTE
Clear commands are found at the Privileged EXEC level.
Traffic counters for outbound traffic
You can configure traffic counters (also called transmit counters) that enable the device to count
the following packet types on a port or port region:
• broadcast packets
• multicast packets
• unicast packets
• dropped packets due to congestion and egress filtering
Depending on the parameters specified with the traffic counter configuration, traffic counters
record the number of outbound packets from any combination of the following sources:
• a specific port or all ports in a specific port region
• a specific VLAN or all VLANs
• a specific 802.1p priority queue or all priority queues
Configuration notes
Consider the following rules when configuring traffic counters for outbound traffic.
• This feature is supported in the Layer 2, base Layer 3, and full Layer 3 codes.
• This feature applies to physical ports only, including 10 Gbps Ethernet ports and trunk ports. It
does not apply to virtual interfaces.
• Once the enhanced traffic counters are read using the show transmit-counter values
command, the counters are cleared (reset to zero).
• For each port region, you can enable a maximum of two traffic counters, regardless of whether
traffic counters are enabled on individual ports or on all ports in the port region.
• Traffic counters increase for bridged filtered outbound traffic when any of the following
conditions occur:
• The port is disabled or the link is down.
• The port or port region does not belong to the VLAN specified in the transmit counter
configuration.
• A Layer 2 protocol (e.g., spanning tree) has the port in a Blocked state.
• The source port needs to be suppressed for multi-target packets.
• The priority queue specified in the traffic counter is not allowed for some other reason.
• Unknown unicast and unregistered multicast packets are filtered.