Packet Sending Modes; Enabling Ipc Performance Statistics - H3C S3100V2-52TP Configuration Manual

Figure 56 Relationship between a node, link and channel

Packet sending modes

IPC supports three packet sending modes: unicast, multicast (broadcast is considered as a special
multicast), and mixcast, each having a queue. The upper layer application modules can select a packet
sending mode as needed.
• Unicast: packet sending between two single nodes.
Multicast: packet sending between a single node and multiple nodes. To use multicast mode, a
•
multicast group needs to be created first. Multicasts will be sent to all the nodes in the multicast
group. An application can create multiple multicast groups. The creation and deletion of a multicast
group and multicast group members depend on the application module.
• Mixcast, namely, both unicast and multicast are supported.

Enabling IPC performance statistics

When IPC performance statistics is enabled, the system collects statistics for packet sending and
receiving of a node in a specified time range (for example, in the past 10 seconds, or in the past 1
minute). When IPC performance statistics is disabled, statistics collection is stopped. At this time, if you
execute the display command, the system displays the statistics information at the time that IPC
performance statistics was disabled.
Follow these steps to enable IPC performance statistics:
To do...
Enable IPC
performance statistics
Use the command...
ipc performance enable { node node-id |
self-node } [ channel channel-id ]
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Remarks
Required
Disabled by default
Available in user view