So, you're looking to lower it from 500ms down to 50ms when most of the recomendations are a bottom limit of 150ms? On Tue, Apr 27, 2021 at 02:37:52AM +0000, Frank Bulk wrote:
So can we change the route reflectors to use 50 msec?
Frank
From: MICE Discuss <MICE-DISCUSS@LISTS.IPHOUSE.NET> On Behalf Of Ben Wiechman Sent: Wednesday, April 21, 2021 8:47 PM To: MICE-DISCUSS@LISTS.IPHOUSE.NET Subject: Re: [MICE-DISCUSS] Zayo Belle Plaine - April 15th
IOS-XR bottoms out at 15ms. IOS/XE has typically been 150ms.
Agreed that in general unless you have <50ms failover requirements 150ms+ is probably a good compromise.
Ben Wiechman Director of IP Strategy and Engineering Direct: 320.256.0184 Cell: 320.247.3224 ben.wiechman@arvig.com<mailto:ben.wiechman@arvig.com> 150 Second Street SW | Perham, MN 56573 | arvig.com<http://arvig.com>
On Wed, Apr 21, 2021, 17:57 Andrew Hoyos <hoyosa@gmail.com<mailto:hoyosa@gmail.com>> wrote: On Apr 21, 2021, at 5:52 PM, David Farmer <0000000e7948cb21-dmarc-request@LISTS.IPHOUSE.NET<mailto:0000000e7948cb21-dmarc-request@LISTS.IPHOUSE.NET>> wrote:
On Wed, Apr 21, 2021 at 5:36 PM Richard Laager <rlaager@wiktel.com<mailto:rlaager@wiktel.com>> wrote: On 4/21/21 3:04 PM, Frank Bulk wrote:
And to follow up on my previous question, is Arista falling bit short in our situation, by not supporting a receive interval of 10 msec?
I've had a couple vendors suggest not to make it that short. Brocade, for example, suggested 150 ms as a minimum. Arista was more vague, but from your error message, apparently their implementation doesn't even try to do less than 50 ms.
Maybe think about this from another perspective, 10 ms is 100 times a second, 50 ms is 20 times a second, and 150 ms just over 6 times a second. I think 10 ms is probably being a little impatient.
Not the mention, the added CPU load on both ends dealing with said BFD packets 100x/sec.
We’ve generally seen 50-250ms used in practice. 10ms does seem super aggressive. We use 250ms x 3 here for backbone links and peers/transit that support BFD, and 750ms x 3 facing internal gear.
— Andrew Hoyos hoyosa@gmail.com<mailto:hoyosa@gmail.com>
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