OSPF and E2's, why default? [7:27390]
Since we were talking a little about OSPF today, I'd like to pose a question. When it comes to Path Types, Cisco uses E2's by default rather than E1's. Can someone tell me why? If E1's include the cost of the path to the ASBR that is distributing that route information into the autonomous system why wouldn't we want to know the entire cost of the path? Not knowing the internal path can lead to you taking a higher cost internal path if that path has a lower external cost. Doyle uses an example in his TCP/IP book (p. 489) that shows exactly such a situation occurring. Why would Cisco default to E2's if that could lead to sub optimal routing? Just curious, Chris Christopher A. Kane CCNP/CCDP Technical Support - Solution Center/Hilliard WorldCom Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=27390t=27390 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OSPF and E2's, why default? [7:27390]
Hello Christopher, If I am not mistaken, E2 is always used by default, but if E1 and E2 are both available for the same destination, E1 will be used. http://www.cisco.com/warp/public/104/3.html Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=27403t=27390 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF and E2's, why default? [7:27390]
Hello Alex I think you are wrong ! E2 always preferred over E1 route for the same destination. E1 will be used only when both E1 and E2 have the same cost routes exist to the destination. Best Regards - Original Message - From: Alex Lei To: Sent: Tuesday, November 27, 2001 7:27 AM Subject: RE: OSPF and E2's, why default? [7:27390] Hello Christopher, If I am not mistaken, E2 is always used by default, but if E1 and E2 are both available for the same destination, E1 will be used. http://www.cisco.com/warp/public/104/3.html Alex _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=27410t=27390 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
