Re: [RPRWG] Phy Layer question
Hi Wolfi
Not sure what exactly was the context before, but SDH rings operating as 1:n
shared protection (MSSPRING) have the 16 node restriction due to the node ID
that is 4-bit long (i.e., you can only address 2^4 nodes in one ring).
Even if we have an SDH ring transporting the traffic of a RPR, the 16-node
restriction doesn't apply to RPR, since RPR is not going to use the same
signaling as used in SDH (we probably will be using RPR's own protection scheme,
that's why we are having so much discussion on which protection we want to use!)
Angela
Wolfram Lemppenau <wle@xxxxxxxxxxxxxxxx> on 04/23/2001 05:07:24 PM
To: vasan.karighattam@xxxxxxxxx, afaber@xxxxxxxxxxxxx
cc: stds-802-17@xxxxxxxx (bcc: Angela T. Faber/Telcordia)
Subject: Re: [RPRWG] Phy Layer question
Hi Angela, hi Vasan,
one more comment on using APS functionality of SDH:
according ITU-T Rec. G.841 max. 16 nodes per ring are supported.
In 802.17-rings we will have more nodes (max.).
(I guess thats also one of the reasons why Cisco does not use K1/K2)
Wolfi