Re: Multiple routes Q [7:38353]
2 routing protocols, rip and EIGRP, have the same network being advertised, guess what, that network will only be installed by EIGRP Hunt Lee wrote: > Could someone help me get a clear understanding about this: > > I understand that when multiple routes exist in a routing table, the route > with the "longest match" will be chosen. Administrative Distance will only > breaks a tie between two routes of equal length. > > So, what is the "metric" for? When will a router uses "metric" to select a > route e.g. to select a route via Router A since it is metrically closer than > Router B to Router C. > > Thanks Everyone in advance. > > Best Regards, > Hunt Lee > System Engineer > WebCentral Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38509&t=38353 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multiple routes Q [7:38353]
You were just about right, except Administrative distance is used when to different routing protocols advertise the same route. Metric is used as the tie breaker if multiple paths exist within a routing protocol. Hunt Lee wrote: >Could someone help me get a clear understanding about this: > >I understand that when multiple routes exist in a routing table, the route >with the "longest match" will be chosen. Administrative Distance will only >breaks a tie between two routes of equal length. > >So, what is the "metric" for? When will a router uses "metric" to select a >route e.g. to select a route via Router A since it is metrically closer than >Router B to Router C. > >Thanks Everyone in advance. > >Best Regards, >Hunt Lee >System Engineer >WebCentral Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38359&t=38353 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multiple routes Q [7:38353]
you have two things going on, as far as the router is concerned. the routing process installs routes into the routing table based upon the specifications of the routing protocol involved. also, you need to be careful when referring to "metric" in the routing table. Metric means different things to different routing protocols. RIP ( 1 and 2 ) metric = hop count RIP will load share across several routes if the metric is the same for all of them the RIP process will install multiple routes to the same destination into the routing table if the metric is the same for all of them. If there are several paths to the same destination, each with different metrics, then the RIP process installs only the route with the lowest metric ( hop count ) OSPF metric = cost OSPF will load share across several routes if the cost is the same for all of them. OSPF will only install multiple routes to the same destination if the cost is equal. If there are several routes of different cost, OSPF installs the route with the lowest cost. hence "shortest path" (E)IGRP metric = metric - those huge numbers we all know and love and which make no sense to us (E)IGRP will load share across several routes even if the metrics for those paths are different, if one uses the "variance" command the (E)IGRP processes will install multiple routes to the same destination into the routing table, even if the metrics for those routes are unequal. ""Hunt Lee"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Could someone help me get a clear understanding about this: > > I understand that when multiple routes exist in a routing table, the route > with the "longest match" will be chosen. Administrative Distance will only > breaks a tie between two routes of equal length. > > So, what is the "metric" for? When will a router uses "metric" to select a > route e.g. to select a route via Router A since it is metrically closer than > Router B to Router C. > > Thanks Everyone in advance. > > Best Regards, > Hunt Lee > System Engineer > WebCentral Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38354&t=38353 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multiple routes Q [7:38353]
Could someone help me get a clear understanding about this: I understand that when multiple routes exist in a routing table, the route with the "longest match" will be chosen. Administrative Distance will only breaks a tie between two routes of equal length. So, what is the "metric" for? When will a router uses "metric" to select a route e.g. to select a route via Router A since it is metrically closer than Router B to Router C. Thanks Everyone in advance. Best Regards, Hunt Lee System Engineer WebCentral Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38353&t=38353 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: multiple routes
Hi yah, Some questions : You have multiple links : to one provider, to multiple providers, to a provider and a transit-as What are you learning from the BGP-peer : default route, the ISP AS's routes or all ??? If you use a static to one provider and BGP to the other that means that you want to reach the same network over different paths?? (Load balancing or Redundancy ??) Thanks Geert Hampe CCNP CCDP CVOICE CATM MCP CCIE written Mail List for cisco routers <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi all, > We are having multiple links to the internet.On one of the port we > have enabled BGP.On second port we are having static routes.how can i > loadbalance both the links.Do i have to broadcast my ip on both of the > gateways. > > regards, > Binod. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
multiple routes
Hi all, We are having multiple links to the internet.On one of the port we have enabled BGP.On second port we are having static routes.how can i loadbalance both the links.Do i have to broadcast my ip on both of the gateways. regards, Binod. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
