HP 6125G HP 6125G & 6125G/XG Blade Switches Network Management and Mon - Page 151

Packet sending modes, Enabling IPC performance statistics

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Figure 52 Relationship between a node, link and channel Channel 2 Link Packet sending modes IPC uses one of the following modes to send packets for upper layer application modules: • Unicast-One node sends packets to another node. • Multicast-One node sends packets to multiple nodes. This mode includes broadcast, a special multicast. To use multicast mode, an application module must create a multicast group that includes a set of nodes. Multicasts destined for this group are sent to all the nodes in the group. An application module can create multiple multicast groups. Creation and deletion of a multicast group or group member depend on the application module. • Mixcast-Supports both unicast and multicast. IPC assigns one queue for each mode. An upper layer application module automatically selects one mode as needed. Enabling IPC performance statistics The IPC performance statistics function provides the most recent 10-second, 1-minute, and 5-minute traffic input and output statistics for IPC nodes. If this function is disabled, the display ipc performance command displays the statistics collected before IPC performance statistics was disabled. Perform the following task in user view: Task Enable IPC performance statistics. Command ipc performance enable { node node-id | self-node } [ channel channel-id ] Remarks By default, the function is disabled. 144

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144
Figure 52
Relationship between a node, link and channel
Packet sending modes
IPC uses one of the following modes to send packets for upper layer application modules:
•
Unicast
—One node sends packets to another node.
•
Multicast
—One node sends packets to multiple nodes. This mode includes broadcast, a special
multicast. To use multicast mode, an application module must create a multicast group that includes
a set of nodes. Multicasts destined for this group are sent to all the nodes in the group. An
application module can create multiple multicast groups. Creation and deletion of a multicast
group or group member depend on the application module.
•
Mixcast
—Supports both unicast and multicast.
IPC assigns one queue for each mode. An upper layer application module automatically selects one
mode as needed.
Enabling IPC performance statistics
The IPC performance statistics function provides the most recent 10-second, 1-minute, and 5-minute traffic
input and output statistics for IPC nodes. If this function is disabled, the
display ipc performance
command displays the statistics collected before IPC performance statistics was disabled.
Perform the following task in user view:
Task
Command
Remarks
Enable IPC performance statistics.
ipc performance enable
{
node
node-id
|
self-node
} [
channel
channel-id
]
By default, the function is disabled.
Link
Channel 2