Mailing List Archive: nsp: extreme

BlackDiamond 6808

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marcin at leon

Jan 20, 2008, 7:29 AM

Post #1 of 9 (3648 views)
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BlackDiamond 6808

hello,
I have a question about construction of BlackDiamond 6808 switch.

Does it have passive or active backplane ?

My point is, that in main point of the network, we have Alpine3808 switch,
however - it has only one CPU module and active backplane that is a switch
in fact.
So, if backplane fails or SMMi fails - switch goes down.

BD6808 may have 2 MSM modules - so, redundant.
- but - is the "switch" also redundand (a part of MSM or port modules ?) ?

I know that BD6808 is not the best platform (based on ExtremeWare, not the
ExtremeOS), however we use it just for L2 - and.. can't afford for brand
new/expansive devices.

Regards,
Marcin

swmike at swm

Jan 20, 2008, 2:42 PM

Post #2 of 9 (3532 views)
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BlackDiamond 6808 [In reply to]

On Sun, 20 Jan 2008, Marcin Kuczera wrote:

> Does it have passive or active backplane ?

Passive.

> BD6808 may have 2 MSM modules - so, redundant.
> - but - is the "switch" also redundand (a part of MSM or port modules ?) ?

That is built into the MSMs. But with single MSM you only get 4 gig per
module on the backplane (instead of 8), so one might argue that it's not
fully redundant.

--
Mikael Abrahamsson email: swmike at swm.pp.se

Stephane.Grosjean at telindus

Jan 21, 2008, 1:40 AM

Post #3 of 9 (3522 views)
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BlackDiamond 6808 [In reply to]

Hello,

>hello,
>I have a question about construction of BlackDiamond 6808 switch.
>
>Does it have passive or active backplane ?

This is a passive backplane. Actually, only Alpine have active backplanes.

>I know that BD6808 is not the best platform (based on ExtremeWare, not the
>ExtremeOS), however we use it just for L2 - and.. can't afford for brand
>new/expansive devices.

If you're talking of buying a new device, then I guess you could have a BD8K for less than the equivalent in the BD6800's series.

Kind Regards,

jrhett at svcolo

Jan 30, 2008, 12:01 PM

Post #4 of 9 (3510 views)
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Re: BlackDiamond 6808 [In reply to]

On Jan 20, 2008, at 7:29 AM, Marcin Kuczera wrote:
> I have a question about construction of BlackDiamond 6808 switch.
>
> Does it have passive or active backplane ?

Passive in theory, but keep in mind that the MSMs use a special
connector to talk to each other. In two different chassis we've seen
that connector part fail, and the MSMs stop communicating. When this
happens, both become "active" and the switch effectively segments
into two. But because the routing table is the same, it really just
bit-buckets all the outbound traffic that's on the other MSM's port.

> BD6808 may have 2 MSM modules - so, redundant.
> - but - is the "switch" also redundand (a part of MSM or port
> modules ?) ?

It's really redundant, except for the failures related to msm<->msm
communication.

> I know that BD6808 is not the best platform (based on ExtremeWare,
> not the
> ExtremeOS), however we use it just for L2 - and.. can't afford for
> brand
> new/expansive devices.

Heh, I have three or so of them fully stocked with G8Xi and 48Ti
cards I'd be happy to sell you, very cheap. Two of these had their
backplanes recently replaced to solve the msm communication failure I
mentioned above.

--
Jo Rhett
senior geek

Silicon Valley Colocation
Support Phone: 408-400-0550

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aaron at wholesaleinternet

Jan 30, 2008, 12:24 PM

Post #5 of 9 (3496 views)
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Re: BlackDiamond 6808 [In reply to]

You know, It's really too bad. I'm a big fan of the Extreme platform but
it's really going down the tubes compared to comparable Cisco and Foundry
stuff. I WANT to buy Extreme but something tells me they're going to get
bought out by someone soon and then support is gone.

Aaron

PS.... What's cheap? :)

-----Original Message-----

Heh, I have three or so of them fully stocked with G8Xi and 48Ti
cards I'd be happy to sell you, very cheap. Two of these had their
backplanes recently replaced to solve the msm communication failure I
mentioned above.

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extreme-nsp mailing list
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jrhett at svcolo

Jan 30, 2008, 6:19 PM

Post #6 of 9 (3502 views)
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Re: BlackDiamond 6808 [In reply to]

term at northnet

Jan 31, 2008, 1:40 AM

Post #7 of 9 (3499 views)
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Re: BlackDiamond 6808 [In reply to]

At 09:24 a.m. 31/01/2008, Aaron Wendel wrote:
>You know, It's really too bad. I'm a big fan of the Extreme platform but
>it's really going down the tubes compared to comparable Cisco and Foundry
>stuff. I WANT to buy Extreme but something tells me they're going to get
>bought out by someone soon and then support is gone.

support when did that happen ? :P

>Aaron
>
>PS.... What's cheap? :)
>
>
>-----Original Message-----
>
>Heh, I have three or so of them fully stocked with G8Xi and 48Ti
>cards I'd be happy to sell you, very cheap. Two of these had their
>backplanes recently replaced to solve the msm communication failure I
>mentioned above.
>
>
>_______________________________________________
>extreme-nsp mailing list
>extreme-nsp [at] puck
>https://puck.nether.net/mailman/listinfo/extreme-nsp

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jrhett at svcolo

Feb 8, 2008, 8:32 AM

Post #8 of 9 (3473 views)
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Re: BlackDiamond 6808 [In reply to]

Best price I have on the plate is $12k for three chassis, fully
stocked. Beat that, and they are yours.

On Jan 30, 2008, at 2:24 PM, Aaron Wendel wrote:
> You know, It's really too bad. I'm a big fan of the Extreme
> platform but
> it's really going down the tubes compared to comparable Cisco and
> Foundry
> stuff. I WANT to buy Extreme but something tells me they're going
> to get
> bought out by someone soon and then support is gone.
>
> Aaron
>
> PS.... What's cheap? :)
>
>
> -----Original Message-----
>
> Heh, I have three or so of them fully stocked with G8Xi and 48Ti
> cards I'd be happy to sell you, very cheap. Two of these had their
> backplanes recently replaced to solve the msm communication failure I
> mentioned above.
>
>
> _______________________________________________
> extreme-nsp mailing list
> extreme-nsp [at] puck
> https://puck.nether.net/mailman/listinfo/extreme-nsp

--
Jo Rhett
senior geek

Silicon Valley Colocation
Support Phone: 408-400-0550

_______________________________________________
extreme-nsp mailing list
extreme-nsp [at] puck
https://puck.nether.net/mailman/listinfo/extreme-nsp

asr at latency

Feb 8, 2008, 8:41 AM

Post #9 of 9 (3481 views)
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Re: BlackDiamond 6808 [In reply to]

On 2008-02-08-11:32:35, Jo Rhett <jrhett [at] svcolo> wrote:
> Best price I have on the plate is $12k for three chassis, fully
> stocked. Beat that, and they are yours.

A neighbor here (NYC metro) was offering a similar configuration for
$800 a box, and received no bites. I'm not sure how the story ended,
but I think he had to pay for their removal by a trash/carting
company.

If you've got an offer on the table for $4k/per, run with it.

-a
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