R3303-HP HSR6800 Routers Network Management and Monitoring Configuration Guide

Figure 33 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 several other 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