Abstract: Management of a plurality of sub-tunnels is disclosed herein. Resource utilization of a plurality of sub-tunnels of a network tunnel implementing a Resource Reservation Protocol is monitored. A resource utilization of a first set of the sub-tunnels exceeding a defined utilization threshold is detected. As a result of the detection, an adjusted resource utilization is determined for a second set of the sub-tunnels. The resource utilization of the second set of sub-tunnels may be less than a defined utilization threshold. The adjusted resource utilization is established for the second set of sub-tunnels for a next measurement interval. The adjusted resource utilization of each sub-tunnel of the second subset of sub-tunnels may be less than a lowest resource utilization among the first set of sub-tunnels.

Abstract: Management of a plurality of sub-tunnels is disclosed herein. Resource utilization of a plurality of sub-tunnels of a network tunnel implementing a Resource Reservation Protocol is monitored. A resource utilization of a first set of the sub-tunnels exceeding a defined utilization threshold is detected. As a result of the detection, an adjusted resource utilization is determined for a second set of the sub-tunnels. The resource utilization of the second set of sub-tunnels may be less than a defined utilization threshold. The adjusted resource utilization is established for the second set of sub-tunnels for a next measurement interval. The adjusted resource utilization of each sub-tunnel of the second subset of sub-tunnels may be less than a lowest resource utilization among the first set of sub-tunnels.

Abstract: Rolling software upgrades may be employed for a network device in a modular chassis and/or virtual chassis. The network device may include memory devices to store a software upgrade package and a group of instructions, and a processor. The processors may install the software upgrade package on a backup routing engine; determine subsets of multiple line cards on which to perform a software upgrade, where ports in each of the multiple line cards are part of a link aggregation group (LAG); initiate a reboot process for each of the subsets of multiple line cards, in sequence, where the reboot process for each of the line cards results in a software upgrade without deactivating any LAG. The processors may also switch the backup routing engine and a master routing engine to create a new master routing engine and a new backup routing engine, and install the upgrade package on the new backup routing engine.

Abstract: Rolling software upgrades may be employed for a network device in a modular chassis and/or virtual chassis. The network device may include memory devices to store a software upgrade package and a group of instructions, and a processor. The processors may install the software upgrade package on a backup routing engine; determine subsets of multiple line cards on which to perform a software upgrade, where ports in each of the multiple line cards are part of a link aggregation group (LAG); initiate a reboot process for each of the subsets of multiple line cards, in sequence, where the reboot process for each of the line cards results in a software upgrade without deactivating any LAG. The processors may also switch the backup routing engine and a master routing engine to create a new master routing engine and a new backup routing engine, and install the upgrade package on the new backup routing engine.