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Network Ring

Subject: Network Ring
From: chanty_kh at yahoo.com (ty chan)
Date: Sun, 6 Sep 2009 21:14:03 -0700 (PDT)

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) and ring protection. 

I know you all are in those network for years. can you give me some advises?  

Best regards,
chanty

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