[j-nsp] Difference Between E Series and Rest of the Router Family

[Richmond, Jeff]

One HUGE difference that should be pointed out in all fairness is that while the M/T/J routers run JUNOS and were developed in-house, the E-series was acquired from Unisphere and as such are nothing at all like the other routers in terms of OS (JUNOSe is nothing like JUNOS) or hardware (even the E320, while being much different than the rest of the E-series is nothing like the M/T series).

Do not expect even the slightest bit of config portability between them, nor should you expect training portability either (though in fairness if you are vendor-C trained, JUNOSe is a fairly quick jump).

While the E-Series certainly has a lot of features that it supports, like anything else, I would highly recommend you decide what features you need and then test them out all running together to make sure it behaves as you would expect.

Regards,
-Jeff
________________________________________
From: juniper-nsp-bounces at puck.nether.net [juniper-nsp-bounces at puck.nether.net] On Behalf Of Truman Boyes [truman at suspicious.org]
Sent: Friday, August 01, 2008 1:21 PM
To: Abhi
Cc: Juniper Puck
Subject: Re: [j-nsp] Difference Between E Series and Rest of the Router Family

Hi Abhi,

The E-series run JUNOSe which is Juniper's mature broadband edge
software. Some of the broadband friendly features include the L2TP
functionality (LAC/LNS/Tunnel Switching), some of the DHCP
functionality, subscriber management functionality(some with the SRC),
and the number of queues / CoS behaviour on the number of interfaces
that the E-series support.

One feature that does not have parity between platforms at this time
is PPP termination capabilities. Today many service providers are
PPPoE or PPPoA and the E-series is designed to scale in this regard.

The subscriber management functionality and the QoS features are very
specific to broadband/customer termination applications. For example,
the shared shaping functionality, and parameter usage in QoS profiles
is also very broadband centric.

Another thing is ATCP capabilities that allow QoS mechanisms to take
into account the actual line speed of a DSL customer in order to
provide the appropriate congestion avoidance mechanisms.

Regards,
Truman


On 1/08/2008, at 3:53 AM, Abhi wrote:

> Hi All
>
> I have a doubt what is difference from technical perspective between
> the E Series router family and rest of the routers. What are those
> unique feature that make them broadband friendly those are missing
> on the Junos family of devices.
>
> regards
> abhijeet.c
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
>

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