It is understood that massive CAR is the best to be done by NSE-1. It is graceful if you can share your experience on using over 20 CAR on a sub-interface on NPE-400. (CPU% consuming on your case)
In my case, I need to configure 60 CAR on two sub-interfaces. (30 CAR per sub-interface). Each CAR has 1 to 2 ACL to specify the policed traffic and the rate-limited bandwidth of each CAR is 128kbps. I am afraid the CPU is pull very high when the traffic is not very high, say, 1Mbps.
The CPU can vary depending on the type of traffic and the amount of traffic coming and going in the router. Because of the linear search for the matching rate-limit statement, the CPU load increases with the number of rate policies.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...