FunctionDescriptionTask
Created by VPN Manager for each context that has enabled the RIP routing
protocol (router rip Context Configuration mode CLI command)
Routing Information Protocolrip
Responsible for learning and redistributing routing information via the RIP
protocol.
Maintains the RIP database.
Sends periodic RIP update messages.
Applies any defined RIP routing policy.
Created by VPN Manager for each context.L2 and L3 Switchingzebos
Maintains the routing table (RIB and FIB) for the context.
Performs static routing.
Interfaces to the kernel for routing & interface updates.
Redistributes routing information to dynamic routing protocols.
Calculates nexthop reachability.
Network Processing Unit Subsystem
Table 50: Network Processing Unit (NPU) Subsystem Tasks
FunctionDescriptionTask
Created at StarOS start up.Internal Forwarder Task
(Intel DPDK)
[VPC-DI, VPC-SI]
iftask
Provides port configuration services to the CSP task.
Provides interface binding and forwarding services to the VPN Manager.
Provides flow insertion and removal services to Session Manager and
AAA Manager tasks.
Created at StarOS start up.Kernel-based NPU
Simulator
[VPC-DI, VPC-SI]
knpusim
Provides port configuration services to the CSP task.
Provides interface binding and forwarding services to the VPN Manager.
Provides flow insertion and removal services to Session Manager and
AAA Manager tasks.
Provides recovery services to the NPU Controller.
ASR 5500 System Administration Guide, StarOS Release 21.4
392
StarOS Tasks
Network Processing Unit Subsystem
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