I'm working on a network and I keep hearing about the TIER 1/1, TIER 0, and TIER 1/2 routers but I have no idea what any of this means. I have my CCNA and don't remember seeing any of this. Am I missing something?
but TIER1 TIER2 TIER3 are common classification of ISP, and some hardware supplier uses those names just to say that thier hardware can be as router on a TIer1 - Tier1 connection or Tier1-Tier2 connections. But I'm not 100% sure.
[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...