H3C Technologies H3C MSR 50 - Manual (Page 12)

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it supports SNMP agent. In this process, the cooperating MIB is the key to associating the two
components.
ACFP traffic management
ACFP collaboration provides a mechanism that enables the ACFP client to manage the traffic on the
ACFP server by implementing the following functions:
• Mirroring and redirecting the traffic on the ACFP server to the ACFP client.
• Permitting/denying the traffic from the ACFP server.
• Restricting the rate of the traffic on the ACFP server.
• Carrying the context ID in a packet to enable the ACFP server and ACFP client to communicate the
packet context with each other.
The ACFP server maintains a context table that can be queried by context ID. Each context ID
corresponds to an ACFP collaboration policy that contains information such as the packet inbound and
outbound interfaces and the collaboration rules. When the packet that the ACFP server receives is
redirected or mirrored to the ACFP client after matching a collaboration rule, the packet carries the
context ID of the collaboration policy to which the collaboration rule belongs. When the ACFP client
returns the packet, the packet also carries the context ID. With the context ID, the ACFP server recognizes
that the packet has been returned after being redirected and then forwards the packet correctly.
For the ACFP client to control traffic optimally, the two-level structure of collaboration policy and
collaboration rules is set to manage the traffic matching the collaboration rule based on the collaboration
policy. This enables flexible traffic management.
To better support the client/server collaboration mode and to granularly and flexibly set different rules,
the collaboration content is divided into the following parts:
• ACFP server information
• ACFP client information
• ACFP collaboration policy
• ACFP collaboration rules.
This information is saved in the ACFP server.
An ACFP server supports multiple ACFP clients. Therefore, ACFP client information, ACFP collaboration
policy, and ACFP collaboration rules are organized in the form of tables.
ACFP server information is generated by the ACFP server itself. ACFP client information, ACFP
collaboration policy, and ACFP collaboration rules are generated on the ACFP client and sent to the
ACFP server through the collaboration MIB or collaboration protocol.
ACFP information
This section describes the ACFP collaboration content.
ACFP server information
ACFP server information includes the following items:
• Supported working modes—Host, pass-through, mirroring, and redirect. An ACFP server can
support multiple working modes at the same time. An ACFP server and an ACFP client can
collaborate only when the ACFP server supports the working modes of the ACFP client.