On 06/09/2009 15:56, Bin Dai wrote:
Hi:
I am interested in ur question to nanog about doubting whether AS 49463
is reachable thourgh AS 12670.
in ur case, AS 49463 is multihomed. what you want to do,if i am right,
is that you wanna make the following things happen:
the 213.215.28.0/23 is reachabl
* Mike Tancsa:
> 220 as08.bis.na.blackberry.com ESMTP
> HELO marble.sentex.ca
> 250 as08.bis.na.blackberry.com
> MAIL From:
> 451 #4.1.8 Domain of sender address does not resolve
This could just be an SPF failure. Try some sender address you
control.
In message <87zl98m0t4@mid.deneb.enyo.de>, Florian Weimer writes:
> * Mike Tancsa:
>
> > 220 as08.bis.na.blackberry.com ESMTP
> > HELO marble.sentex.ca
> > 250 as08.bis.na.blackberry.com
> > MAIL From:
> > 451 #4.1.8 Domain of sender address does not resolve
>
> This could just be an SPF f
Dear all,
I am in process of planning ring network to cover 15 POPs in City. Some
technologies are chosen for consideration like SDH(Huawei), PVRST+(Cisco),
RSTP(Zyxel), EAPS (extreme network) and MPLS(VPLS). The purpose is to provide
L2 Ethernet connectivities from POPs to central point (DC) a
Step 1: Don't mix vendors. Period.
On Sun, Sep 6, 2009 at 11:14 PM, ty chan wrote:
> Dear all,
>
> I am in process of planning ring network to cover 15 POPs in City. Some
> technologies are chosen for consideration like SDH(Huawei), PVRST+(Cisco),
> RSTP(Zyxel), EAPS (extreme network) and MPL
Only one vendor will be chosen.
From: jamie
To: ty chan
Cc: nanog@nanog.org
Sent: Monday, September 7, 2009 11:51:17 AM
Subject: Re: Network Ring
Step 1: Don't mix vendors. Period.
On Sun, Sep 6, 2009 at 11:14 PM, ty chan wrote:
Dear all,
>
>>I am in pr
On Sep 7, 2009, at 11:14 AM, ty chan wrote:
The purpose is to provide L2 Ethernet connectivities from POPs to
central point (DC) and ring protection.
I'd strongly suggest trying to avoid a large, multi-geography layer-2
topology, and instead work to separate it out via layer-3. Otherwise
On Sun, Sep 6, 2009 at 11:51 PM, jamie wrote:
> Step 1: Don't mix vendors. Period.
Step 2: Hire a network consultant that gets paid for its job.
On 7/09/2009, at 4:14 PM, ty chan wrote:
I am in process of planning ring network to cover 15 POPs in City.
Some technologies are chosen for consideration like SDH(Huawei),
PVRST+(Cisco), RSTP(Zyxel), EAPS (extreme network) and MPLS(VPLS).
The purpose is to provide L2 Ethernet connectivitie
There are several ring technologies that are interesting but again it depends
on what services you are planning to run and what kind of SLA guarantees you
need:
- RPR (802.17) : This has quieted down but it is a fairly robust technology
giving you packet rings with 50ms, CoS, fairness and upt
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