nanog mailing list archives
Re: Mikrotik Cloud Core Router and BGP real life experiences?
From: Andre Tomt <andre-nanog () tomt net>
Date: Fri, 27 Dec 2013 21:36:57 +0100
On 27. des. 2013 17:26, Jim Shankland wrote: <snip>
Routing table size was completely not an issue in our environment; we were looking at a number of concurrent flows in the high-5 to low-6-digit range, and since Linux uses a route cache, it was that number, rather than the number of full tables we carried, that was important.
<snip>FYI, Linux no longer has a routing cache, so any performance numbers with the cache in place is void on modern kernels. It was deemed too fragile, handled mixed traffic badly, and was way easy to DoS. It wasnt simply just ripped out of course, the full lookups was made way faster and a bunch of scalability issues got plugged in the process.
All in all, in PPS, Linux should now handle mixed traffic much better, but less diverse traffic patterns might be a little slower than before. However, all in all, much more consistent and predictable.
Not everything is peachy though, there are still some cases that sucked last I checked. Running tons of tunnels beeing one. Multicast rx was severely gimped for a while after the removal, but that got fixed.
Current thread:
- Re: Mikrotik Cloud Core Router and BGP real life experiences?, (continued)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? matt kelly (Dec 27)
- RE: Mikrotik Cloud Core Router and BGP real life experiences? Raymond Burkholder (Dec 27)
- RE: Mikrotik Cloud Core Router and BGP real life experiences? matt kelly (Dec 27)
- [SPAM]RE: [SPAM]RE: Mikrotik Cloud Core Router and BGP real life experiences? Dennis Burgess (Dec 27)
- Re: [SPAM]RE: [SPAM]RE: Mikrotik Cloud Core Router and BGP real life experiences? Dale Rumph (Dec 28)
- Re: [SPAM]RE: [SPAM]RE: Mikrotik Cloud Core Router and BGP real life experiences? Justin Wilson (Dec 31)
- RE: Mikrotik Cloud Core Router and BGP real life experiences? Raymond Burkholder (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Jim Shankland (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Justin Wilson (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Seth Mattinen (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Justin Wilson (Dec 28)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? matt kelly (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Andre Tomt (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Eduardo Schoedler (Dec 27)
- RE: Mikrotik Cloud Core Router and BGP real life experiences? Brandon Lehmann (Dec 27)
- [SPAM]RE: [SPAM]Re: Mikrotik Cloud Core Router and BGP real life experiences? Dennis Burgess (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Eduardo Schoedler (Dec 27)
- Re: Mikrotik Cloud Core Router and BGP real life experiences? Alexander Neilson (Dec 27)