Juniper Networks, Inc.

Ananda Sathyanarayana

Gopi Krishna

Apurva Mehta

Jagadish Grandhi

Dinesh Bakiaraj

Krishna Sankaran

Murtuza S Attarwala

Bobby Vandalore

Sandesh Kumar Sodhi

Balamurugan Ramaraj

Kumar B Mehta

Rajagopalan Subbiah

Ramanarayanan Ramakrishnan

Bin William Hong

Vignesh Chinnakkannu

Arun Balasubramanian

Kumar Mehta

In general, techniques are described for offloading data transfer statistics from a mobile access gateway. The mobile access gateway comprises a forwarding unit. The forwarding unit comprises a packet forwarding engine (PFE). When the PFE receives a packet, the PFE updates a data transfer statistic based on a quantity of data in the packet. The data transfer statistic is initially stored in a memory of the PFE. The PFE is configured to push the data transfer statistic from the memory of the PFE to a memory of the forwarding unit.

Offload of data transfer statistics from a mobile access gateway

In general, techniques are described for maintaining load balancing after service application. A network device comprising ingress and egress forwarding components and a service card may implement the techniques. An ingress forwarding component receives a packet and, in response to a determination that the service is to be applied to the packet, updates the packet to include an ingress identifier that identifies the ingress forwarding component, thereafter transmitting the updated packet to the service card. The service card applies the service to the updated packet to generate a serviced packet and transmits the serviced packet to the ingress forwarding component identified by the ingress identifier so as to maintain load balancing of packet flows across the plurality of forwarding components. The ingress forwarding component determines a next hop to which to forward the serviced packet and the egress forwarding component forwards the serviced packet to the determined next hop.

Maintaining load balancing after service application with a network device

In general, techniques are described for informing services nodes of private network address information in order to apply subscriber-aware services with the services node. In some examples, a services node includes an Authentication, Authorization, and Accounting (AAA) interface to receive a AAA message, wherein the AAA message has been extended from a AAA protocol to specify a private network address of a subscriber device authenticated to an access network by the AAA server and assigned the private network address that is not routable external to the access network. A mapping module associates the public network address of subscriber data traffic with the private network address received by the AAA message. One or more service modules select one or more of a plurality of subscriber policies using the associated private network address and apply services to the subscriber data traffic in accordance with the selected subscriber policies.

Network address translation for application of subscriber-aware services

In general, techniques are described for selectively applying and reusing filters stored in a router. In one example, a method includes receiving a network access request from a first user. The method also includes selecting a candidate rule group associated with the packet flow, wherein the candidate rule group comprises one or more currently deployed rules of an existing rule group on the computing device that are currently installed within a forwarding plane and are being applied by the forwarding plane to network traffic associated with a second user. The method also includes installing a new rule group comprising the one or more currently deployed rules of the existing rule group and one or more new rules associated with the first user and not currently installed within a forwarding plane. The method also includes applying each rule of the new rule group to network traffic associated with the first user.

Filter selection and resuse

In general, techniques are described for encoding port ranges. In one example, a method includes generating an encoded value that represents a specified port range including a first element storing an identifier that identifies a frequently occurring port range stored in an associative data structure of most frequently occurring port ranges, a second element storing an index that represents a dynamically-learned port range specifying at least a part of the specified port range, the dynamically-learned port range represented in a tree-structure of dynamically-learned port ranges and identified by the index, and applying, by a forwarding plane of the computing device, one or more filters associated with the encoded value to a packet that specifies a port included in the specified port range.

Hybrid port range encoding

Methods, apparatus, and products are disclosed for forwarding frames in a computer network using shortest path bridging ('SPB'). The network includes multiple bridges, and each edge bridge is assigned a unique service virtual local area network ('VLAN') identifier. One of the bridges receives a frame for transmission to a destination node. The received frame includes a service VLAN identifier for the ingress bridge through which the frame entered the network and a customer VLAN identifier. The one bridge identifies an SPB forwarding tree in dependence upon the service VLAN identifier. The SPB forwarding tree specifies a shortest route in the network from the ingress bridge through the one bridge to the other bridges in the network. The one bridge then forwards the received frame to the egress bridge without MAC-in-MAC encapsulation in dependence upon the SPB forwarding tree and the customer VLAN identifier.

Forwarding frames in a computer network using shortest path bridging

Growing community of inventors

Santa Clara, CA, United States of America

Ananda Sathyanarayana