HP Virtual Connect 8Gb 20-port Fibre Channel Module for c-Class BladeSystem - Manual (Page 111)

Virtual Connect networks 111
sFlow Settings (General) screen
The sFlow feature allows network administrators to monitor and analyze the network traffic flow in the
datacenter. The sFlow settings can be modified by users with Network, Domain, or Server user role
permissions. VC sends sFlow datagrams containing traffic information to an external sFlow collector.
Clicking another link in the pull-down menu or left navigation tree causes current edits that have not been
applied to be lost.
IMPORTANT: For sFlow to function properly, the VLAN ID used for the sFlow network, whether
tagged or native/untagged, cannot be the native VLAN ID on any other port on the ToR switch
that connects back to the same VC module.
For example, if three links are connected between a VC module and a ToR switch and one of
those links is a dedicated or tunneled network and sFlow is assigned to that network, sFlow traffic
is sent untagged. The native VLAN ID for the ToR port for that link cannot be the native VLAN ID
of the other two ToR ports that are connected to that same VC module.
For mapped Shared Uplink Sets, the sFlow traffic is sent tagged. The VLAN ID used for the
network that carries the sFlow traffic cannot be the native VLAN ID for any other ToR port
connected to the same VC module.
sFlow Status
Shows the current status of the sFlow module. Click Refresh to refresh the status.
Network Configuration
If there is no network selected, you can click Add to select the network through which sFlow datagrams will
be sent to the sFlow collector. A list of available networks is displayed. Select one network, and then click
OK. Click Apply to save your changes.
The network can be either a dedicated network, or it can be a shared network. You cannot choose a private
network. FCoE networks are not allowed for sFlow configuration.
If a network is already selected, you must delete it before adding a different one.