On 05/12/2010 02:41 PM, Scott Weeks wrote:
>
>
> --- da...@tcb.net wrote: From: Danny McPherson On May
> 12, 2010, at 9:40 AM, Jay Nakamura wrote:
>
>> I just tested this and, yes, with Cisco to Cisco, changing the
>> setting won't reset the connection but you have to reset the
>> connection
ssage-
>> From: Jay Nakamura [mailto:zeusda...@gmail.com]
>> Sent: Tuesday, May 11, 2010 1:35 PM
>> To: NANOG
>> Subject: BGP and convergence time
>>
>> So, we have two upstreams, both coming in on Ethernet. One of our
>> switch crashed and rebooted its
; http://blog.ioshints.info/2008/01/ospf-default-route-based-on-ip-sla.html
>
> Frank
>
> -Original Message-
> From: Jay Nakamura [mailto:zeusda...@gmail.com]
> Sent: Tuesday, May 11, 2010 1:35 PM
> To: NANOG
> Subject: BGP and convergence time
>
> So, we have two u
What about IP SLA with some EEM? This link may give you some ideas:
http://blog.ioshints.info/2008/01/ospf-default-route-based-on-ip-sla.html
Frank
-Original Message-
From: Jay Nakamura [mailto:zeusda...@gmail.com]
Sent: Tuesday, May 11, 2010 1:35 PM
To: NANOG
Subject: BGP and
On Wed, May 12, 2010 at 09:52:48AM -0600, Danny McPherson wrote:
>
> The holdtime isn't technically negotiated, both sides convey their
> value in the open message and the lower of the two is used by both BGP
> speakers. IIRC, neither J or C reset the session with the timer
> change, but the new
--- matt...@walster.org wrote:
From: Matthew Walster
On 12 May 2010 02:36, Scott Weeks wrote:
> You set the timers on your side and the two sides negotiate then select the
> lowest timer settings. The BGP session automatically hard resets on some
> equipment when changing the timers, so be
--- da...@tcb.net wrote:
From: Danny McPherson
On May 12, 2010, at 9:40 AM, Jay Nakamura wrote:
> I just tested this and, yes, with Cisco to Cisco, changing the setting
> won't reset the connection but you have to reset the connection to
> have the value take effect. I need to look up what hap
On May 12, 2010, at 9:40 AM, Jay Nakamura wrote:
>
> I just tested this and, yes, with Cisco to Cisco, changing the setting
> won't reset the connection but you have to reset the connection to
> have the value take effect. I need to look up what happens when two
> sides are set to different val
On Wed, May 12, 2010 at 11:02 AM, Matthew Walster wrote:
> On 12 May 2010 02:36, Scott Weeks wrote:
>> You set the timers on your side and the two sides negotiate then select the
>> lowest timer settings. The BGP session automatically hard resets on some
>> equipment when changing the timers,
On 12 May 2010 02:36, Scott Weeks wrote:
> You set the timers on your side and the two sides negotiate then select the
> lowest timer settings. The BGP session automatically hard resets on some
> equipment when changing the timers, so be aware of that.
Hold timers are negotiated in the OPEN me
On Tue, May 11, 2010 at 09:31:51PM -0400, Jay Nakamura wrote:
> Yes, I understand BFD. The question is, do carriers usually do BFD
> with customers? And if they say no, are there other remedies? AT&T
> doesn't seem to be even willing to change BGP timers. If anyone have
> been able to talk AT&T
--- zeusda...@gmail.com wrote:
From: Jay Nakamura
AT&T
doesn't seem to be even willing to change BGP timers. If anyone have
been able to talk AT&T or Qwest in doing so, it would really help to
You set the timers on your side and the two sides negoti
Yes, I understand BFD. The question is, do carriers usually do BFD
with customers? And if they say no, are there other remedies? AT&T
doesn't seem to be even willing to change BGP timers. If anyone have
been able to talk AT&T or Qwest in doing so, it would really help to
find out how they convi
> I am looking for ways to detect neighbor being down faster so traffic
> can be re-routed faster.
BFD
On 5/11/2010 11:35, Jay Nakamura wrote:
> So, we have two upstreams, both coming in on Ethernet. One of our
> switch crashed and rebooted itself. Although we have other paths to
> egress out the network, because the router's Ethernet interface didn't
> go down, our router's BGP didn't realize the
So, we have two upstreams, both coming in on Ethernet. One of our
switch crashed and rebooted itself. Although we have other paths to
egress out the network, because the router's Ethernet interface didn't
go down, our router's BGP didn't realize the neighbor was down until
default BGP timeout was
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