254 Brocade ICX 6650 Administration Guide
53-1002600-01
sFlow
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The event control table defines the action to be taken when an alarm is reported. Defined events
can be found by entering the CLI command, show event. The Event Log Table collects and stores
reported events for retrieval by an RMON application.
A sample entry and syntax of the event control table is shown below.
Brocade(config)#rmon event 1 description ‘testing a longer string’ log-and-trap
public owner nyc02
Syntax: rmon event <event-entry> description <text-string> log | trap | log-and-trap owner
<rmon-station>
sFlow
NOTE
Brocade ICX 6650 devices support sFlow version 5 by default.
sFlow is a standards-based protocol that allows network traffic to be sampled at a user-defined rate
for the purpose of monitoring traffic flow patterns and identifying packet transfer rates on
user-specified interfaces.
When sFlow is enabled on a Layer 2 or Layer 3 switch, the system performs the following
sFlow-related tasks:
•Samples traffic flows by copying packet header information
•Identifies ingress and egress interfaces for the sampled flows
•Combines sFlow samples into UDP packets and forwards them to the sFlow collectors for
analysis
•Forwards byte and packet count data, or counter samples, to sFlow collectors
sFlow is described in RFC 3176, “InMon Corporation's sFlow: A Method for Monitoring Traffic in
Switched and Routed Networks”.
NOTE
You can use QoS queue 1 for priority traffic, even when sFlow is enabled on the port. QoS queue 1
is reserved for sFlow and is not used by other packets. Any non-sFlow packets assigned to QoS
queue 1 will be directed to QoS queue 0.

sFlow version 5

sFlow version 5 enhances and modifies the format of the data sent to the sFlow collector. sFlow
version 5 introduces several new sFlow features and also defines a new datagram syntax used by
the sFlow agent to report flow samples and interface counters to the sFlow collector.
sFlow version 5 adds support for the following:
•sFlow version 5 datagrams
•Sub-agent support
•Configurable sFlow export packet size
•Support for the new data field and sample type length in flow samples
•Configurable interval for exporting Brocade-specific data structure