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Enhancements
Release M.10.02 Enhancements
• An ACE in the ACL for a given authenticated client exceeds 80 characters.
• An ACL assigned to an authenticated client causes the number of optional counters
needed on the ACL to exceed the per-ACL maximum (32).
SFlow Show Commands
In earlier software releases, the only method for checking whether sFlow is enabled on the switch
was via an snmp request. Beginning with software release M.10.02, the 3400cl switches have added
the following show sFlow commands that allow you to see sFlow status via the CLI.
Terminology
sFlow — An industry standard sampling technology, defined by RFC 3176, used to continuously
monitor traffic flows on all ports providing network-wide visibility into the use of the network.
sFlow agent — A software process that runs as part of the network management software within a
device. The agent packages data into datagrams that are forwarded to a central data collector.
sFlow destination — The central data collector that gathers datagrams from sFlow-enabled switch
ports on the network. The data collector decodes the packet headers and other information to
present detailed Layer 2 to Layer 7 usage statistics.
Viewing SFlow Configuration
The show sflow agent command displays read-only switch agent information. The version information
shows the sFlow MIB support and software versions; the agent address is typically the ip address of
the first vlan configured on the switch.
Syntax: show sflow agent
Displays sFlow agent information. The agent address is normally the ip address of
the first vlan configured.
Syntax: show sflow destination
Displays information about the management station to which the sFlow sampling-
polling data is sent.
Syntax: show sflow sampling-polling <port-list/range>
Displays status information about sFlow sampling and polling.
Syntax: show sflow all
Displays sFlow agent, destination, and sampling-polling status information for all
the ports on the switch.