Can somebody help me with this question? (see below) Thanks.
--- On Sat, 3/6/10, Carlos Valero <[email protected]> wrote: From: Carlos Valero <[email protected]> Subject: Re: [OSL | CCIE_RS] MPLS Question: How to verify the number of Prefixes? To: "Bryan Bartik" <[email protected]> Cc: "Joe Astorino" <[email protected]>, "ccie_rs" <[email protected]> Date: Saturday, March 6, 2010, 9:36 AM Thank you. That's what I thought. However, my confusion comes from this. If I issue this command for a specific VRF instead of a Summary: show ip bgp vpnv4 vrf Customer_A BGP table version is 40, local router ID is 10.10.10.4 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path Route Distinguisher: 100:101 (default for vrf Customer_A) *>i200.0.6.0 10.10.10.6 0 100 0 ? *> 200.0.4.0 0.0.0.0 0 32768 ? *>i200.1.6.0 10.10.10.6 0 100 0 ? As you see, the Prefixes in this result are under the "Route Distinguisher" column This is confusing me. Are these Prefixes or are they "Route Distinguishers" Are they same? If so, then why? Sorry for this "silly" question, but MPLS hasn't totally clicked in my mind yet. I hope you can clarify this for me. Thank you! --- On Sat, 3/6/10, Bryan Bartik <[email protected]> wrote: From: Bryan Bartik <[email protected]> Subject: Re: [OSL | CCIE_RS] MPLS Question: How to verify the number of Prefixes? To: "Carlos Valero" <[email protected]> Cc: "Joe Astorino" <[email protected]>, "ccie_rs" <[email protected]> Date: Saturday, March 6, 2010, 12:20 AM Carlos: show ip bgp vpnv4 all summary should do it. On Fri, Mar 5, 2010 at 9:47 PM, Carlos Valero <[email protected]> wrote: Simple MPLS question: What is the quickest/simplest way to determine the exact number of Prefixes received by a PE Router from another PE Router over an MP-BGP session? Thank you in advance for your answer! --- On Wed, 3/3/10, Joe Astorino <[email protected]> wrote: From: Joe Astorino <[email protected]> Subject: Re: [OSL | CCIE_RS] Want to know how to calculate the EIGRP metric? To: "Dale Shaw" <[email protected]> Cc: "ccie_rs" <[email protected]> Date: Wednesday, March 3, 2010, 7:13 PM Yeah...I probably should not have included that check since it does not play into the calculation. <shrug> On Wed, Mar 3, 2010 at 5:46 PM, Dale Shaw <[email protected]> wrote: Hi Joe, On Thu, Mar 4, 2010 at 9:29 AM, Joe Astorino <[email protected]> wrote: > Hi Dale, > > The bandwidth that is set on R7 s0/0/0 is completely irrelevant to the > calculation. Yes, this is the point I've been trying to make, subtly, but failing :-) In the second terminal output box in your article, you are checking R7's s0/0/0 interface, but the bandwidth and delay values specified there are irrelevant. Nice article, but if I could give one piece of feedback it would be to make it painfully clear that the composite metric is calculated "uni-directionally" -- from the device performing the calculation, to the ultimate destination -- using the egress interfaces *only*, including the ultimate directly connected interface, in each hop along the path. (in this case, R8's s0/0/0 and R7's lo0.) I've found this fact to result in a 'light bulb moment' for lots of people struggling with EIGRP metric calculation. Cheers, Dale -- Regards, Joe Astorino CCIE #24347 (R&S) Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service Provider) Certification Training with locations throughout the United States, Europe and Australia. Be sure to check out our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com -----Inline Attachment Follows----- _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com -- Bryan Bartik CCIE #23707 (R&S, SP), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com
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