Virtual egress packet classification at ingress
First Claim
Patent Images
1. In a network packet router having one or more ingress and egress ports, a system implemented at an ingress port for egress pass/drop determination for packets, comprising:
- a rule set comprising header combinations and values for which a pass/drop decision may be applied, the set including an egress port identity for each header combination and value set; and
a mechanism noting pertinent headers of a specific incoming packet, and an egress port to which the packet is to be sent, comparing the headers with rules in the rule set, and returning a determination of a rule to be applied.
4 Assignments
0 Petitions
Accused Products
Abstract
In a network packet router having one or more ingress and egress ports, a method is implemented at an ingress port for egress pass/drop determination for packets, comprising the steps of (a) noting header combinations and values, and egress port destination for incoming packets; (b) comparing the header combinations and values with rule sets associated with the header combinations and values including egress port identities, and (c) returning a determination of pass or drop for the packet.
-
Citations
32 Claims
-
1. In a network packet router having one or more ingress and egress ports, a system implemented at an ingress port for egress pass/drop determination for packets, comprising:
-
a rule set comprising header combinations and values for which a pass/drop decision may be applied, the set including an egress port identity for each header combination and value set; and
a mechanism noting pertinent headers of a specific incoming packet, and an egress port to which the packet is to be sent, comparing the headers with rules in the rule set, and returning a determination of a rule to be applied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. In a network packet router, an ingress port, comprising:
-
an interface for receiving packets;
a first mechanism for noting header combinations and values, and egress ports for transmission, for individual ones of the received packets; and
a second mechanism comparing the headers and values with a rule set comprising header combinations and values and egress ports, and returning a rule for the packet. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A network packet router comprising:
-
one or more ingress ports; and
one or more egress ports;
characterized in that individual ones of the ingress ports comprise a first mechanism for noting header field combinations and values, and egress ports for transmission, for individual ones of the received packets, and a second mechanism comparing the headers with rules associated with the egress ports and field values, and returning a rule determination for the packet. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
-
25. In a network packet router having one or more ingress and egress ports, a method implemented at an ingress port for determining both ingress and egress rules for packets, comprising the steps of:
-
(a) noting header combinations and values, and egress port destination for incoming packets;
(b) comparing the header combinations and values and egress port destinations with a rule set associated with the header combinations and values including egress port destinations; and
(c) returning a rule for the packet. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
-
Specification