W dniu 09.03.2019 o 18:07, Maximilian Wilhelm pisze:
Anno domini 2019 Stary Bezpiek scripsit:
Hi,
[...]
What is outdated? That Mikrotik deals V6 mostly in software? That Cisco 6800
series (still pretty wide used) is not ready to full support of today's IPv6
world?
Could you please elaborate on the shortcomings here?
Mikrotik example:
a) Take true 1Gig uplink to the internet
b) take Mikrotik device with mipsbe processor, configure it to enable
only V6 and perform a speedtest to the fast.com for example
c) The same device enable v4 only and use HW offloads, fastpath,
fasttrack and so on and perform the test from b)
d) keep v4 only, disable HW offloads, fastpath fast track and perform
the test
e) compare results with a)
f) try all above with PPPoE and compare
My results: with v4 and all HW offload supports you can expect about 920
Mbps. With pure v6 - about 400 Mbps, same or even less with HW offloads
disabled.
Cisco:
Cisco 6880-X - here we have no problems witch ipv4 and ipv6, but no 40G
or bigger line cards. Only 10Gig cards is little to less in our IPv6
world. Cisco 6800 "legacy series" (quotes intended, hope you know what I
mean) you have to observe combinations with "E" cassis to support
appropriate supervisor avoiding ipv6 multicast limitations, 1M ipv4
prefixes limit with supervisors even XL, the 40Gig ports available only
in 6807 SUP6T chassis of course with "E"
SUP without XL only 128k ipv6 routes, and many others dependencies and
complexities. I forgot about 6500/7600 series also still wide used -
problem with shared FIB making it practically poor usable for v6, when
you make place for v4 prefixes.
Hope this helps.
--
stary.bezpiek
