On 05/03/2025 14:07:16, "Pengembara T. via cisco-nsp"
<[email protected]> wrote:
Interested at 7280cr2k. But based on thi, its no longer listed
R (1st gen) and R2 (2nd gen) are end of sale and heading to end
of support, I've not checked every model of R2 but will be
similar timetable.
https://www.arista.com/en/support/advisories-notices/end-of-sale/15849-end-of-sale-of-the-arista-dcs-7280cr2k-30-series
others are here -
https://www.arista.com/en/support/advisories-notices/endofsale
Looks like its already replaced with something else.
R3 are the current generation if you are buying new, and need
support. R and R2 are appearing cheaply used now they hare
dropping off support.
Im still did not understand arista model naming convention.
What about 7280SR3-40YC6 ? Is the control plane able to handle
7280 is the big buffer full table range = router
S,Q,C is the general port speed range, I don't know the official
nomenclature but it's along the lines of S = slow, they probably
mean SFP, Q = QSFP = 40G, C = century = 100G, and so on.
R(null,2,3) is generation.
K = bigger TCAM
-40YC6 = describes port combination
-F and M on the end is air flow and ram options
As others have mentioned, lots of details in
https://www.arista.com/assets/data/pdf/Whitepapers/7280R3-Platform-Architecture-WP.pdf
7280sr3 did not mention bgp table, but mention these:
Cloud Networking Ready
Up to 384K MAC Addresses
Over 2M IPv4 Unicast Routes
Over 5M IPv4 Routes with 7280R3K
Those routes are hardware defined, the Flexroute software
option is FIB compression and is quite effective (R = 1M TCAM,
total fail for a full table, with Flexroute it functions well
at about 40% utilisation). It works with K and non K versions
but obviously K is a better starting point for very large.
BGP table is just ram and there are more ram versions. The
same R was tight with the standard 8GB but with 32GB is fine
(you can DIY upgrade, 16G is easy, above that for R range
the SOC needs unbuffered and 16GB unbuffered is hard to find).
brandon
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