The 'Bandwidth' and 'Delay' parameters ARE metrics, which are sent to neighbours in packets in order that DUAL can be run to calculate its topological database and routing table.
Phil. --- "Steven A. Ridder" wrote: > So is it safe for me to conclude that I was wrong in > stating that EIGRP > sends the metrics to its neighbors. It actually > sends the raw data such as > bandwidth, and delay, and the neighbor router uses > the DUAL FSM process to > calculate the Reported Distance and then it's > distance? I've been sniffing > and debugging all morning and I can't find a metric > in a packet, just raw > data. > > -- > RFC 1149 Compliant. > > ""Priscilla Oppenheimer"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > The delay part of the EIGRP composite metric is > not measured. It's based > on > > the type of interface. Each type of interface has > a default value. You can > > change it, although this is risky and not > recommended. > > > > Because EIGRP is a distance-vector protocol, the > router sends route > updates > > that list networks. For each network, the router > states the different > parts > > of the composite metric: > > > > 1) The delay to get to the network, which is a > cumulation of all interface > > delays. > > > > 2) The bandwidth to that network, which is the > minimum bandwidth for all > > interfaces. > > > > 3) Reliability which is not used by default, but > you can configure the > > router to use it. If used, the reliability is > measured and represents how > > much of the bandwidth to the network is in use. > > > > 4) Load which is not used by default, but you can > configure the router to > > use it. If used, the load is measured and > represents the fraction of > > packets that arrive at the network undamaged. > > > > The router also sends the following info, which is > not part of the metric, > > but useful for other routers to know: > > > > 1) MTU is the maximum packet size that can be sent > along the entire path > > without fragmentation. (That is, it is the minimum > of the MTUs of all the > > networks involved in the path.) > > > > 2) The hop count is simply the number of routers > that a packet will have > to > > go through to get to the destination. > > > > 3) Next hop is the address of the router to use to > get to the destination, > > which is usually the router sending the update. > > > > Priscilla > > > > At 05:15 PM 2/20/02, Yatou Wu wrote: > > >Hi, > > > > > >In EIGRP, the delay metric is taken as configured > in the interface of the > > >router by the administrator, by default, or by > measurement? > > > > > >when the router calculates the metric, it needs > to know the minimum > > >bandwidth along the path, and also the delay > along the path. how can the > > >router pass the infor around? pass the total > delay along the path, or > delay > > >of every link? > > > > > >thanks > > > > > >yatou > > > > > > >_________________________________________________________________ > > >Get your FREE download of MSN Explorer at > http://explorer.msn.com/intl.asp. > > ________________________ > > > > Priscilla Oppenheimer > > http://www.priscilla.com [EMAIL PROTECTED] __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=36059&t=36001 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
