8
number of a matched packet must be greater than the starting destination port number and less
than the ending destination port number.
• Starting destination port number
• Ending destination port number
• Pro—Protocol type: GRE, ICMP, IGMP, OSPF, TCP, UDP, or IP.
• IP precedence—Packet precedence, a number in the range of 0 to 7.
• IP ToS—ToS of IP.
• IP DSCP—DSCP of IP.
• TCP flag—Some bits in the six flag bits (URG, ACK, PSH, RST, SYN, and FIN) are concerned.
• IP fragment—Whether the packet is an IP packet fragment.
• Rate limit.
You can use the collaboration policy to manage the collaboration rules that belong to it.
ACFP usage guidelines
The following are ACFP usage guidelines:
• For VLANID-context devices, after ACFP is enabled, some VLAN IDs must not be used by any other
modules; otherwise, some data packets might be forwarded incorrectly. The range for the VLAN IDs
that cannot be used varies with the device.
• In a GRE tunneling environment, an ACFP policy can be configured on a tunnel interface only.
• ACFP does not support policy-based routing services or NetStream services.
• The handling of the packets that are redirected by ACFP and the part of the QoS processing (FR-DE
matching, ATM-CLP matching, inbound interface matching, QoS local-id, local precedence, and so
on) are mutually exclusive. No QoS processing is performed on the packets returned after they are
redirected to the ACFP client.
• On the destination interface, packets redirected or mirrored by ACFP support only Layer 2 QoS
processing, including queuing and WRED. They do not support any other service processing, such
as non-Layer 2 QoS processing and non-QoS service processing.
• With ACFP, a stream cannot be mirrored or redirected to multiple ACFP clients.
• ACFP cannot process outbound packets.
• For multi-core and software-based forwarding devices, ACFP does not support handling these types
of packets:
{ Broadcasts
{ Multicasts
{ MPLS packets
{ Inbound packets
{ IPv6 packets
• For multi-core and software-based forwarding devices, ACFP redirects and mirrors any IP datagram
not greater than 1500 bytes (length of the Layer 3 packet, excluding the link layer header), and
discards any IP datagram greater than 1500 bytes.
• For software-based forwarding devices, if the contents of the rules matched by the packet on the
inbound interface or outbound interface exceed the quintuple information, no fast-forwarding
cache entry is created for the packet and the packet is not fast-forwarded.