Event (Rmon Group 9); Sflow; Sflow Version 5 - Brocade Communications Systems FastIron Administration Manual

Syntax: rmon alarm entry-number MIB-object. interface numsampling timesample type-threshold
type-threshold value event number -threshold type-threshold valueevent-number owner text-string

Event (RMON group 9)

There are two elements to the Event Group--the event control table and the event log table .
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.
device(config)# rmon event 1 description 'testing a longer string' trap public owner
nyc02
Syntax: rmon eventevent-entry description text-string {log | trap | log-and-trap} owner rmon-station
NOTE
FastIron devices currently support only the trap option.

sFlow

NOTE
FastIron 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".
On ICX and FCX Series devices, you can use QoS queue 1 for priority traffic, even when sFlow is
enabled on the port. This differs from FastIron X Series devices, which support seven priorities instead
of eight when sFlow is enabled. In this case, 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:
FastIron Ethernet Switch Administration Guide
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Event (RMON group 9)
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