nanog mailing list archives
RE: Network Ring
From: "Holmes,David A" <dholmes () mwdh2o com>
Date: Fri, 11 Sep 2009 10:26:36 -0700
An additional requirement often overlooked by Metro Ethernet architects is to ensure that layer 3 multicast stateful protocols are implemented in the carrier equipment. In order to ensure that PIM (S,G) stateful packets are not flooded out all ports in customers' geographically-dispersed switches, PIM snooping must be implemented in the carrier's equipment. Otherwise, the carriers' Metro Ethernet service operates like a 1990's-style shared hub incorrectly flooding (S,G) packets. For customers that have constant 10+ Mbps (S,G) multicast streams, the absence of PIM snooping effectively renders 10+ Mbps ports useless. -----Original Message----- From: ty chan [mailto:chanty_kh () yahoo com] Sent: Friday, September 11, 2009 12:29 AM To: Rubens Kuhl Cc: nanog () nanog org Subject: Re: Network Ring Does anyone have best practise for implementing those technologies ? I am currently doing a testing LAB with CISCO REP since i have a few Metro on hand. It works quite well in my LAB. There is one Request Time Out if the link break BUT it is physical layer not REP :) ________________________________ From: Rubens Kuhl <rubensk () gmail com> To: ty chan <chanty_kh () yahoo com> Cc: nanog () nanog org Sent: Monday, September 7, 2009 8:15:23 PM Subject: Re: Network Ring My vote goes to proprietary ring protection from the vendor you choose: - EAPS (Extreme) - REP (Cisco) - MRP (Foundry/Brocade) - EPSR (Allied Telesis) Although EAPS is implemented in all Extreme switches, select models from the other vendors implement ring protection, but these models also do other things you might want your network to have (QinQ, per-VLAN controls). Rubens On Mon, Sep 7, 2009 at 1:14 AM, ty chan<chanty_kh () yahoo com> 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 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
Current thread:
- Re: Network Ring, (continued)
- Re: Network Ring Nathan Ward (Sep 07)
- Re: Network Ring sthaug (Sep 07)
- RE: Network Ring Rod Beck (Sep 07)
- Re: Network Ring Charles Mills (Sep 07)
- Re: Network Ring Justin Shore (Sep 08)
- RE: Network Ring Paul Stewart (Sep 08)
- Re: Network Ring sthaug (Sep 08)
- Re: Network Ring Justin Shore (Sep 08)
- Re: Network Ring sthaug (Sep 07)
- Re: Network Ring Nathan Ward (Sep 07)
- Re: Network Ring ty chan (Sep 11)
- RE: Network Ring Holmes,David A (Sep 11)