Allied Telesis AT-9000/52 User Manual

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AlliedWare Plus Version 2.1.2 Management Software Web Browser User’s Guide
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To configure the agent to forward these port statistics to the collectors, you 
have to specify polling rates, which define the maximum amount of time 
permitted between successive queries of the counters of a port by the 
agent.
Different ports can have different polling rates. Ports to which critical 
network devices are connected can be assigned low polling rates, so that 
the information on the collector is kept up-to-date. Ports connected to less 
critical devices can be assigned higher polling rates.
To increase its efficiency, the agent can send port status and counter 
information before the polling interval of a port times out. For example, if 
you define a polling interval of five minutes for a port, the agent, depending 
on its internal dynamics, may send the information to the collector before 
five minutes have actually elapsed.
sFlow Collectors
The sFlow agent on the switch can send port performance data to up to an 
sFlow collector on your network. The performance data from each port can 
be sent to one collector.
Guidelines
Here are the guidelines for the sFlow agent:
The sFlow agent can send port performance data to up to four sFlow 
collectors on your network.
The switch must have a management IP address. For instructions, 
refer to Chapter 17, “Setting IPv4 and IPv6 Management” on page 
187
.
The sFlow collectors must be members of the same subnet as the 
management IP address of the switch, or must have access to it 
through routers or other Layer 3 devices.
If the sFlow collectors are not a member of the same subnet as the 
management IP address of the switch, the switch must have a default 
gateway that specifies the first hop to reaching the collectors’ subnet. 
For instructions, refer to Chapter 17, “Setting IPv4 and IPv6 
Management” on page 187.
The sFlow feature is not dependent on SNMP. You do not have to 
enable or configure SNMP on the switch to use the sFlow feature. In 
addition, you cannot use sFlow collectors to configure or manage 
SNMP.