I am not aware of any Cisco document advicing about the proper values. But they can be considered as follows:
- maximum acceptable (threshold) level of five minutes CPU Utilization, % ( routers, switches):
The lower the better. Although each platform has a minimum CPU usage. i.e. 3550 switches tend to have a minimum of 35 - 40% of CPU usage dedicated to their internal management functions.
- maximum acceptable (threshold) level of free memory, memory used:
The higher the better. In addition having no memory fragmentation is very important too to be able to allocate every process needed.
- maximum acceptable (threshold) level of proportion unicast/not unicast traffic
The lower the proportion the better. Although the not unicast traffic levels will depend on the type of traffic traversing an interface, A percentage above the 85 - 90% may impact the link and switch/router performance.
[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...