Systems and methods for propagating health of a cluster node
The present disclosure describes systems and methods for propagating port state to intermediary devices of a cluster in a static link aggregation environment. The methods and systems include a cluster comprising a plurality of intermediary devices in communication with a network device via a static link aggregation comprising aggregated ports from different intermediary devices of the cluster. A first device of the static link aggregation is configured to detect that a health of the first device is below a predetermined threshold and, responsive to the detection, identify one or more ports in the aggregated ports as down. A second device of the link aggregation is configured to, responsive to the identification, remove the ports from a distribution list for the static link aggregation. Upon detection that a health of a device is above a predetermined threshold, the first device may identify the ports as up.
1. A method of propagating port state to a network device having a static link aggregation to two or more intermediary devices of a cluster, the method comprising:
(a) establishing, by the two or more intermediary devices of a cluster comprising a plurality of intermediary devices intermediary to a plurality of clients and a plurality of servers, a static link aggregation with a network device in communication with the cluster, the static link aggregation comprising aggregated ports from different intermediary devices;
(b) detecting, by a first intermediary device of the static link aggregation, that a health of the first intermediary device is below a predetermined threshold;
(c) identifying, by the first intermediary device responsive to the detection, one or more ports in the aggregated ports of the static link aggregation; and
(d) disabling, by the first intermediary device of the static link aggregation responsive to the identification, the one or more ports to notify the network device that the first intermediary device is unavailable;
(e) detecting, by the first intermediary device, that the health of the first intermediary device is above the predetermined threshold; and
(f) adding, by the first intermediary device responsive to the detection that the health is above the predetermined threshold, one or more ports to the static link aggregation with the network device in communication with the cluster.
2. The method of claim 1 , wherein step (a) further comprises establishing the static link aggregation comprising network interfaces to different intermediary devices in the cluster.
3. The method of claim 1 , wherein step (b) further comprises detecting, by the first intermediary device, that the first intermediary device is no longer part of an active node list for the cluster.
4. The method of claim 1 , wherein step (c) further comprises communicating, by the first intermediary device, a message to a second intermediary device that the one or more ports are down.
5. The method of claim 1 , wherein step (d) further comprises powering down, by the first intermediary device, the one or more ports.
6. The method of claim 1 , wherein step (d) further comprising maintaining, by at least one intermediary device of the cluster, the static link aggregation with the network device in communication with the cluster.
7. The method of claim 1 , further comprising powering up, by the first intermediary device responsive to the detection that the health is above the predetermined threshold, the one or more ports.
8. The method of claim 1 , further comprising identifying, by the first intermediary device responsive to the detection that the health is above the predetermined threshold, the one or more ports in the aggregated ports as up.
9. A system of propagating port state to a network device, the system comprising:
a cluster comprising a plurality of intermediary devices, the cluster in communication with the network device and intermediary to a plurality of clients and a plurality of servers;
a static link aggregation to the network device, the static link aggregation comprising aggregated ports from different intermediary devices of the cluster; and
a first intermediary device of the static link aggregation configured to detect that a health of the first intermediary device is below a predetermined threshold and, responsive to the detection, disable one or more ports of the aggregated ports of the static link aggregation; and
wherein the first intermediary device is configured to detect that the health of the first intermediary device is above the predetermined threshold and responsive to the detection that the health is above the predetermined threshold, add one or more ports to the static link aggregation with the network device in communication with the cluster.
10. The system of claim 9 , wherein the static link aggregation comprises network interfaces to different intermediary devices in the cluster.
11. The system of claim 9 , wherein the first intermediary device detects that the first intermediary device is no longer part of an active node list for the cluster.
12. The system of claim 9 , wherein the first intermediary device communicates a message to a second intermediary that the one or more ports are down.
13. The system of claim 9 , wherein the first intermediary device powers down the one or more ports.
14. The system of claim 9 , wherein the intermediary devices in the static link aggregation maintain the static link aggregation with the network device in communication with the cluster without the disabled one or more ports.
15. The system of claim 9 , wherein the first intermediary device responsive to the detection that the health is above the predetermined threshold powers up the one or more ports.
16. The system of claim 9 , wherein the first intermediary device responsive to the detection that the health is above the predetermined threshold identifies the one or more ports in the aggregated ports as up.