please allow me to extend your question a bit further to make it even more exciting:
- When would one specify layer 2 (MAC address) parameters to be taken into consideration by the Etherchannel hashing algorithm and when does he go to layer 3 (IP address) and even layer 4 parameters (transport info)?
- How would this affect the resources utilization on the switch (take for example a Catalyst 6509 with SUP2/PFC2/MSFC2)?
- In the case of a Catalyst 3500XL, it only supports the choice between "source" OR "destination" (no way to use both in the algorithm); if it is connected on the other side of the bundle to a Catalyst 6500 using Layer 3/4 information in the hash function, how would this affect the traffic flow on the bundle (personnaly I think one of the links could end up being overutilized with respect to the other links in the bundle)
[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...