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87 messages in net.nether.puck.cisco-nsp[c-nsp] Growing BGP tables| From | Sent On | Attachments |
|---|---|---|
| Vincent De Keyzer | Nov 19, 2004 6:46 am | |
| Gert Doering | Nov 19, 2004 9:01 am | |
| David J. Hughes | Nov 21, 2004 5:15 pm | |
| Ryan O'Connell | Nov 21, 2004 5:43 pm | |
| Brian Feeny | Nov 21, 2004 9:16 pm | |
| Jon Lewis | Nov 21, 2004 9:49 pm | |
| Gert Doering | Nov 22, 2004 2:55 am | |
| Ian Dickinson | Nov 22, 2004 4:11 am | |
| Neil J. McRae | Nov 22, 2004 4:52 am | |
| Ian Dickinson | Nov 22, 2004 5:47 am | |
| David J. Hughes | Nov 22, 2004 6:45 am | |
| Gert Doering | Nov 22, 2004 7:36 am | |
| Rainer Borromeo | Nov 22, 2004 8:39 am | |
| Jared Mauch | Nov 22, 2004 10:19 am | |
| Gert Doering | Nov 22, 2004 11:07 am | |
| Łukasz Bromirski | Nov 22, 2004 11:15 am | |
| Brian Feeny | Nov 22, 2004 12:04 pm | |
| Gunther Stammwitz | Nov 22, 2004 1:51 pm | |
| Jared Mauch | Nov 22, 2004 2:03 pm | |
| Michael Lyngbøl | Nov 22, 2004 2:15 pm | |
| Gunther Stammwitz | Nov 22, 2004 2:19 pm | |
| David J. Hughes | Nov 22, 2004 2:44 pm | |
| Brian Feeny | Nov 22, 2004 4:48 pm | |
| David J. Hughes | Nov 22, 2004 4:53 pm | |
| Rodney Dunn | Nov 22, 2004 4:58 pm | |
| David J. Hughes | Nov 22, 2004 4:59 pm | |
| David J. Hughes | Nov 22, 2004 5:17 pm | |
| Randy Bush | Nov 22, 2004 5:21 pm | |
| David J. Hughes | Nov 22, 2004 5:31 pm | |
| Randy Bush | Nov 22, 2004 5:34 pm | |
| Brian Feeny | Nov 22, 2004 5:38 pm | |
| Rodney Dunn | Nov 22, 2004 8:17 pm | |
| Rodney Dunn | Nov 22, 2004 8:31 pm | |
| Michael Lyngbøl | Nov 23, 2004 2:44 am | |
| Neil J. McRae | Nov 23, 2004 5:10 am | |
| Neil J. McRae | Nov 23, 2004 5:10 am | |
| Gert Doering | Nov 23, 2004 5:24 am | |
| Michael Lyngbøl | Nov 23, 2004 5:29 am | |
| Neil J. McRae | Nov 23, 2004 5:38 am | |
| Michael Lyngbøl | Nov 23, 2004 5:39 am | |
| Martin Robinson | Nov 23, 2004 5:50 am | |
| Tantsura, Jeff | Nov 23, 2004 5:51 am | |
| Neil J. McRae | Nov 23, 2004 6:42 am | |
| Ben Crocker | Nov 23, 2004 6:54 am | |
| ege iyioglu | Nov 23, 2004 9:28 am | |
| Tantsura, Jeff | Nov 23, 2004 10:17 am | |
| Rodney Dunn | Nov 23, 2004 10:39 am | |
| Tantsura, Jeff | Nov 23, 2004 11:12 am | |
| Rodney Dunn | Nov 23, 2004 11:38 am | |
| Brian Feeny | Nov 23, 2004 12:11 pm | |
| Rodney Dunn | Nov 23, 2004 12:33 pm | |
| Gert Doering | Nov 23, 2004 3:01 pm | |
| David J. Hughes | Nov 23, 2004 4:42 pm | |
| Rodney Dunn | Nov 23, 2004 7:33 pm | |
| Brian Feeny | Nov 23, 2004 7:37 pm | |
| David J. Hughes | Nov 23, 2004 8:30 pm | |
| Mihai CHELARU | Nov 24, 2004 5:07 am | |
| Gert Doering | Nov 24, 2004 7:27 am | |
| Rodney Dunn | Nov 24, 2004 8:27 am | |
| David J. Hughes | Nov 24, 2004 6:28 pm | |
| Krzysztof Adamski | Nov 24, 2004 10:33 pm | |
| Robert Boyle | Nov 25, 2004 12:48 am | |
| Bill Wichers | Nov 25, 2004 12:56 am | |
| Krzysztof Adamski | Nov 25, 2004 9:44 am | |
| Stephen J. Wilcox | Nov 26, 2004 9:21 am | |
| Gert Doering | Nov 26, 2004 10:03 am | |
| Stephen J. Wilcox | Nov 26, 2004 11:09 am | |
| Gert Doering | Nov 26, 2004 11:20 am | |
| Stephen J. Wilcox | Nov 27, 2004 6:53 am | |
| Rodney Dunn | Nov 30, 2004 6:40 pm | |
| David J. Hughes | Nov 30, 2004 7:26 pm | |
| Rodney Dunn | Nov 30, 2004 10:30 pm | |
| Randy Bush | Dec 1, 2004 12:30 am | |
| David J. Hughes | Dec 1, 2004 12:57 am | |
| lee....@census.gov | Dec 1, 2004 8:59 am | |
| Rodney Dunn | Dec 1, 2004 9:18 am | |
| lee....@census.gov | Dec 1, 2004 11:18 am | |
| David J. Hughes | Dec 1, 2004 8:40 pm | |
| Randy Bush | Dec 1, 2004 8:51 pm | |
| Rodney Dunn | Jan 27, 2005 11:41 am | |
| Gert Doering | Jan 27, 2005 11:45 am | |
| Rodney Dunn | Jan 27, 2005 11:48 am | |
| David J. Hughes | Jan 27, 2005 11:42 pm | |
| Joe Maimon | Jan 28, 2005 8:28 am | |
| Jon Lewis | Jan 28, 2005 9:25 am | |
| Joe Maimon | Jan 28, 2005 9:52 am | |
| Jon Lewis | Jan 28, 2005 10:25 am |
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| Subject: | [c-nsp] Growing BGP tables | Actions... |
|---|---|---|
| From: | Rodney Dunn (rod...@cisco.com) | |
| Date: | Dec 1, 2004 9:18:56 am | |
| List: | net.nether.puck.cisco-nsp | |
No. I was talking about this only being configured on the RouterA/Routerb pair Where that represents it's own nontransit AS.
That's why I asked what deployment scenarios are most of you asking about for this.
I see this more as a benefit for a stub AS rather than any AS that is transit.
AS1 AS2
ISPA ISPB | | RouterA --- IBGP --- RouterB
|---------- AS3 --------|
I put in the proposal the next hop check but are you asking that is a less specific prefix exist in the RIB then just dont' install a more specific regardless of how/where that less specific was learned?
Rodney
On Wed, Dec 01, 2004 at 08:59:13AM -0500, lee....@census.gov wrote:
On 11/30/2004 10:30 PM, Rodney Dunn <rod...@cisco.com> wrote:
I'm trying to put it together in my head how it would be done for dual EBGP sessions.
ie:
ISPA ISPB | | RouterA --- IBGP --- RouterB
Say I get a /16 and a /24 for a prefix from ISPA with the same next hop so I wouldn't want to install the /24. But what happens if I get a /16 from ISPB and that gets sent to RouterA. That prefix would have a next hop of Router B or ISPB so it would be a different prefix and installed in the RIB. Now the traffic that was originally flowing to the /24 would take the backup path (due to a longest match lookup) rather than the path it would have taken if we had installed the original /24. Would that be acceptable?
I think not.
Say RouterA advertises a /16 and a /24 within the /16 to ISPA, RouterB advertises the same /16 and a different /24 within the /16 to ISPB.
If I'm understanding the proposal correctly, ISPA drops the /24 since it has the same next hop as the /16. ISPB also drops their /24 since it has the same next hop as the /16. If the link between RouterA and RouterB goes down then ISPA, and all their customers, aren't going to be able to get to siteB (the /24 advertised by RouterB) while ISPB, and all their customers, aren't going to be able to get to siteA (the /24 advertised by RouterA).
Lee