[167378] in North American Network Operators' Group
SV: What routers do folks use these days?
daemon@ATHENA.MIT.EDU (Andreas Larsen)
Tue Dec 10 05:19:45 2013
From: Andreas Larsen <andreas.larsen@ip-only.se>
To: Jimmy Hess <mysidia@gmail.com>, Mikael Abrahamsson <swmike@swm.pp.se>
Date: Tue, 10 Dec 2013 11:19:27 +0100
In-Reply-To: <CAAAwwbUS=YnUH2TuvHvkOMSm63FT+wRm7FfKKi1doCBzsTJa8Q@mail.gmail.com>
Cc: NANOG list <nanog@nanog.org>, Jawaid Desktop <jb@forethought.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Same here using MX routers and Brocade=20
+1 for MX due to the "unix" shell =3D)
Med v=E4nlig h=E4lsning
Andreas Larsen
=A0
IP-Only Telecommunication AB| Postadress: 753 81 UPPSALA | Bes=F6ksadress: =
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-----Ursprungligt meddelande-----
Fr=E5n: Jimmy Hess [mailto:mysidia@gmail.com]=20
Skickat: den 10 december 2013 04:35
Till: Mikael Abrahamsson
Kopia: NANOG list; Jawaid Desktop
=C4mne: Re: What routers do folks use these days?
On Fri, Nov 29, 2013 at 12:02 AM, Mikael Abrahamsson <swmike@swm.pp.se>wrot=
e:
> [snip]
>
+1 for MX or ASR 9000.
> Cisco ASR 9000, Juniper MX, Huawei NE40E, Alcatel-Lucent 7750, those=20
> kinds of routers are the ones I hear people using. Some go for the new=20
> Sup2T for the 6500, but I don't know how much more CPU it has compared=20
> to your SUP/RSP720, perhaps someone else knows?
Cat6500 Sup720 was a platform that used two separate processors; 1 Switch
Processor CPU at 600mhz managing Layer 2 services, and 1 Route processor
CPU at 600MHz on the MSFC to run the Layer 3 services. these were MIPS CPU=
s --- sr71000.
Cat650 Sup2T is shown as a single Dual core, 1.5GHz per Core cpu. There
is one processor stack on the 2T, instead of two separate CPUs; since rout=
e processor and switch processor are now combined into one shared processin=
g unit under the new "merged" architecture that runs only one IOS image, t=
hat controls both RP and SP features ---- Layer 2, Layer 3, and manageme=
nt services do not run on separate processors, with their own separate hw=
anymore.
So the CPU is beefier --- but it is also now shared by multiple functions t=
hat previously had separate, isolated processing from one another.
I believe the Sup2T are using a E500 PowerPC chip.
In any event, neither old nor new are based on x86 architecture --- keep =
in mind, that comparison of MHz or GHz CPU frequency rates is only meanin=
gful within the same CPU architecture.
There are not significant increases in FIB TCAM, or other important memory=
capacities from RSP720, that you would expect to need for scalability t=
o larger tables.
Even with 2T I would still describe the 65xx as largely a great switching =
platform, for 10/100/1000 aggregation -- due to limited chassis
bandwidth: its days would seem to be numbered once desktops are sporting 10
gigabit links: definitely not (IMO) the best hardware router platform
for carrying large routing tables at the ISP edge, anyways.
> Mikael Abrahamsson email: swmike@swm.pp.se
>
--
-JH
