RE: [RPRWG] RPR and 1+1 linear APS like configuration.
The RPR objective talks about the following:
1. RPR MAC - Ring protection and restoration in less than 50 msec. This means
support of BLSR and UPSR (Check out Telcordia GR 253 for details).
2. Support SONET/SDH phy layers - This can mean requirement to support 1+1
linear APS also.
Rajan.
-----Original Message-----
From: owner-stds-802-17@xxxxxxxxxxxxxxxxxx
[mailto:owner-stds-802-17@xxxxxxxxxxxxxxxxxx]On Behalf Of
thanh.nguyen@xxxxxxxxxxxxx
Sent: Friday, August 03, 2001 11:27 AM
To: Siamack Ayandeh
Cc: owner-stds-802-17@xxxxxxxxxxxxxxxxxx; stds-802-17@xxxxxxxx; Ajay
Kamalvanshi
Subject: Re: [RPRWG] RPR and 1+1 linear APS like configuration.
I thought 1+1 APS Linear is for point-to-point configuration not for ring
configuration as in RPR. You would need to take a look at Ring APS since
RPR's IPS is very similar to Ring APS. The difference is that Ring APS is a
layer 1 protocol and IPS is a layer 2 protocol. So the simple answer is
still a no.
Thanh
Siamack Ayandeh
<sayandeh@xxxxxxxxxx> To: Ajay Kamalvanshi
<vanshi@xxxxxxxxxxx>
Sent by: cc:
stds-802-17@xxxxxxxx, owner-stds-802-17@xxxxxxxxxxxxxxxxxx
owner-stds-802-17@majordom Subject: Re: [RPRWG]
RPR and 1+1 linear APS like configuration.
o.ieee.org
08/03/2001 08:56 AM
Ajay,
RPR is a frame based technology. Not sure what you have in mind in terms
of 1+1. Could you please elaborate. The simple answer seems to be no.
Thakns, Siamack
Ajay Kamalvanshi wrote:
Hi All, I have read few of the documents that are published/posted on
web and I have this very basic question regarding 802.17. Can RPR used to
implement something like 1+1 linear non-revertive APS equivalent. One
simple way is to look at it as a ring with two nodes and four links. If a
link breaks other link can be reused. Since I did not see this mentioned
specifically I was wondering if it is a possible configuration for
RPR. Thanks,vanshi
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