Juniper Networks, Inc.

Megh Bhatt

Rajashekar Reddy

Harshad Bhaskar Nakil

Saurabh Kumar Agarwal

Anish Mehta

Sai Ganesh Sitharaman

Shankar Ramanathan

Tirthankar Ghose

Sundaresan Rajangam

Ashok Singh R

Arvind Batalagundu Viswanathan

A controller coordinates execution of a set of related processes executed by respective devices in the virtual network, wherein coordinating comprises causing the respective devices to execute the set of related processes; receiving a data set for the set of related processes from the respective devices, comprising receiving operational states of the related processes from the respective devices; reading a previous data set comprising previous operational states of the related processes from the respective devices; processing an update to the previous operational states from the received operational states of the received data set; and aggregating the received operational states of the data set with the previous operational states of the related processes to form aggregated data of updated operational states.

Synchronized cache of an operational state of distributed software system

Techniques are disclosed for session-based traffic statistics. In an example method, a virtual router of a cloud data center processes traffic flows for virtual machines executing on a server within the cloud data center to generate traffic flow statistics. The traffic flows include ingress traffic flows originating from the virtual machines and destined for a network of the cloud data center, and egress traffic flows originating from the network of the cloud data center and destined for the virtual machines. A virtual routing agent processes the traffic flow statistics to identify pairs of ingress and egress traffic flows corresponding to a common communication session. The virtual routing agent generates, for each identified pair of ingress and egress traffic flows, session records comprising traffic session statistics for each of the ingress and egress traffic flows of the pair and uploads the session records to a traffic collector for the network.

Session-based traffic statistics logging for virtual routers

In one example, a controller device includes one or more network interfaces communicatively coupled to one or more devices of a virtual network, and a processor configured to determine, for the virtual network, a set of two or more related processes executed by respective devices in the virtual network, receive via the network interfaces data for the set of two or more related processes, and aggregate the data for the set of two or more related processes to form aggregated data for the set of two or more related processes.

Creating searchable and global database of user visible process traces

A virtual device includes multiple devices connected to operate as a single device. A first one of the devices is configured to determine that the first device connects to a second one of the devices via a first link; identify a second link; determine that the second link connects the first device to the second device; and automatically aggregate the first link and the second link to form a link aggregation with the second device based on determining that the first device connects to the second device via both the first and second links. The first device is further configured to transmit packets to the second device via the first and second links of the link aggregation.

Automatic aggregation of inter-device ports/links in a virtual device

A method performed by network devices that includes operating in a normal mode, where the network devices form a virtual chassis that corresponds to a single logical network device; detecting when a failure within the virtual chassis occurs; executing a splitting process to form one or more new virtual chassis in correspondence to the failure; determining whether one of the one or more new virtual chassis operates as a functioning virtual chassis based on whether at least one of a set of criteria is satisfied, where the functioning virtual chassis operates according to resources configured for the virtual chassis; and operating as a nonfunctioning virtual chassis when it is determined that the one of the one or more virtual chassis does not satisfy the at least one of the set of criteria, where the nonfunctioning virtual chassis operates in a pass-through mode.

Network disruption prevention when virtual chassis system undergoes splits and merges

In some embodiments, an apparatus includes a first switch having an egress port configured to be coupled to a second switch to collectively to define a single logical entity having a set of virtual identifiers. A first set of virtual identifiers from the set of virtual identifiers is associated with the first switch, a second set of virtual identifiers from the set of virtual identifiers is associated with the second switch. The first switch is configured to receive a forwarding table associating a first set of destination addresses with a set of identifiers local to the first switch and associating a second set of destination addresses with a set of identifiers local to the second switch. Each identifier from the first set of identifiers is uniquely associated the first set of virtual identifiers. Each identifier from the set of identifiers is uniquely associated the second set of virtual identifiers.

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Dublin, CA, United States of America

Megh Bhatt