[c-nsp] ASR920 vs ISR4000

[Pshem Kowalczyk]

Hi,

General feel for the boxes:

ISR4331 is and enterprise/corporate type device. Quite flexible and
versatile (albeit at a cost of lower throughput).
ASR920 is a carrier MPLS aggregation/edge for mainly L2 services.
Non-internet scale of L3 can be done as well. Can only forward packets
(with limited ability to manipulate them), can not do any "services" (NAT,
IPSEC, netflow, etc)

I've used the ISRs for the typical enterprise edge (some NAT, ACLs, DHCP
relays etc - i.e. internal facing)  deployments and the ASR family - for
the L2 MPLS aggregation/access (i.e. external facing).  If you think that
your deployment requires anything more than plain forwarding of packets -
then ISR is the way to go, otherwise - ASR is the better (IMHO) choice.

kind regards
Pshem




On Tue, 22 Sep 2015 at 12:53 Michael Malitsky <malitsky at netabn.com> wrote:

> I need to upgrade the edge router for one of my deployments.  Current 2811
> is not expected to support the new WAN links.  I need 4-5 ports (copper is
> fine), aggregate throughput up to 125Mb (not accounting for future growth),
> BGP with 3-5 peers and <100 routes, and QoS.  I don't ever expect to
> support telephony or MPLS.  Cisco's suggestion is to use an ISR4331.
>
> The question is whether I should also consider an ASR920 for this role?
> I've seen it mentioned on this list a few times.  It looks like both will
> fill my basic requirements, price points are similar, and both run IOS-XE.
> The ISR's performance is capped at 300Mb, and I can add a small number of
> ports.  The ASR's performance is essentially unlimited, and I can add more
> ports (by purchasing licenses).  The ISR will do encryption if I ever need
> it, in software only, and the ASR will not.
>
> Are there any major differences I am missing?  Any first-hand experiences
> would be especially appreciated.
>
> Sincerely,
> Michael
>
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