H3C Technologies H3C S12500 Series Switches - Manual (Page 29)

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Configuring ACSEI
This chapter describes how to configure private protocol ACFP Client and Server Exchange Information
(ACSEI).
Overview
ACSEI is a private protocol for exchanging information between ACFP clients and ACFP server. It
supports ACFP collaboration, ensuring valid information interaction between the ACFP clients and the
ACFP server, so that the ACFP clients and server can cooperate to run a service.
As a supporting protocol of ACFP, ACSEI also uses the client/server model:
• The ACSEI server is integrated into the software system of the switch and is supported by the switch.
• The ACSEI client is integrated into the software system of an OAP module and is supported by the
OAP module.
For more information about the OAP module, see "Configuring the OAP card." For more information
about ACFP, see "Configuring ACFP".
ACSEI is typically used in combination with the QoS policy (traffic redirecting function). With ACSEI
enabled, when an IPS, ACG, FW, or NSM card fails, ACSEI sets the QoS policy as ineffective when it
detects any abnormality of the ACSEI client, and disables the traffic from being redirected, thus to
implement the function like ACFP so that traffic forwarding is not affected.
This chapter covers the configuration of the ACSEI server integrated into the software system of the
switch.
ACSEI functions
ACSEI provides the following functions:
• Registration and deregistration of an ACSEI client to the ACSEI server.
• ID assignment. The ACSEI server assigns IDs to ACSEI clients to distinguish between them.
• Mutual monitoring and awareness between an ACSEI client and the ACSEI server.
• Information interaction between the ACSEI server and ACSEI clients, including clock
synchronization.
• Control of the ACSEI clients on the ACSEI server. For example, you can restart ACSEI client on the
ACSEI server.
ACSEI timers
An ACSEI server uses the clock synchronization timer and the monitoring timer:
• Clock synchronization timer—Used to periodically trigger the ACSEI server to send clock
synchronization advertisements to ACSEI clients. You can set this timer through command lines.
• Monitoring timer—Used to periodically trigger the ACSEI server to send monitoring requests to
ACSEI clients. You can set this timer through command lines.