[j-nsp] MPLS in the Access

[Bjørn Skovlund]

On Sat, Jul 24, 2010 at 3:27 AM, Pavel Lunin <plunin at senetsy.ru> wrote:
> Another approach can be a large VC ring of EX4200s built with VCE (ethernet)
> links:
> http://www.juniper.net/us/en/local/pdf/implementation-guides/8010045-en.pdf
>
> Seems to be a reasonable solution when scale of up to 9 nodes in a single
> ring is OK. First EX4200 is known to be more or less stable (in my
> experience), second VCCP is actualy ISIS which is way more interesting than
> most ethernet scaling technologies rooted in LAN. As of my experience,
> Juniper's VC implementation is rather not bad. Moreover they even announced
> EX4500 to support virtual chassis some day, but this is too dreamy by now,
> and no one knows how good EX4500 will be.

I think the biggest problem with this approach, is the limit of 24K
MAC addresses across the entire VC. This is a problem we'll be running
into in the not so distant future - I don't know if CCCs are the right
(only?) solution to this.

Cheers, Bjørn