3com S7906E Installationsanweisungen

 

1-2 

z 

Interface-connecting component: It connects the interface of the routing/switching component to 

that of the independent service component, allowing the devices of two manufacturers to be 

interconnected. 

ACFP collaboration means that the independent service component can send instructions to the 

routing/switching component to change its functions. ACFP collaboration is mainly implemented 

through the Simple Network Management Protocol (SNMP). Acting as a network management system, 

the independent service component sends various SNMP commands to the routing/switching 

component, which can then execute the instructions received because it supports SNMP agent. In this 

process, the cooperating MIB is the key to associating the two components with each other. 

ACFP collaboration provides a mechanism that enables the ACFP client to control the traffic on the 

ACFP server by implementing the following functions: 

z 

Mirroring and redirecting the traffic on the ACFP server to the ACFP client 

z 

Permitting/denying the traffic from the ACFP server 

z 

Restricting the rate of the traffic on the ACFP server 

z 

Carrying the context ID in a packet to enable the ACFP server and ACFP client to communicate the 

packet context with each other. The detailed procedure is as follows:

 

The ACFP server maintains a context table that can be queried with context ID. Each context ID 

corresponds with an ACFP collaboration policy that contains information including inbound interface 

and outbound interface of the packet, and collaboration rules. When the packet received by the ACFP 

server 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 redirected 

packet is returned from the ACFP client, the packet also carries the context ID. With the context ID, the 

ACFP server knows that the packet is returned after being redirected and then forwards the packet 

normally. 

For the ACFP client to better control traffic, the two-level structure of collaboration policy and 

collaboration rules is set in the collaboration to manage the traffic matching the collaboration rule based 

on the collaboration policy, implementing flexible traffic management. 

To better support the Client/Server collaboration mode and granularly and flexibly set different rules, the 

collaboration content is divided into four parts: ACFP server information, ACFP client information, ACFP 

collaboration policy and ACFP collaboration rules. These four parts of information are 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 server information contains the following: