Re: [j-nsp] EX4200-48PX/PoE+
Date: Thu, 7 Feb 2013 09:33:18 + From: Nikolay Abromov nabro...@gmail.com Subject: [j-nsp] EX4200-48PX/PoE+ However, the PoE budget is equal to 740 W, which means PoE (740/48 = 15.4). I am really confused. Does this platform support full PoE+ on all 48 ports or it does support it only as protocol, but doesn't have enough power to provide 30W on each port (which means 1440 W for PoE budget). The EX4200 930W PSU's have 740W PoE(+) budget. If you need the full 48 port PoE+ usage, I'd use two PSU's. The EX4200 line supports two PSU's inside of the chassis itself (not some external RPS) after all, but do remember to set priorities for the ports in regards to PoE(+) in case a PSU or feed fails. Also note that through LLDP-MED's a lot of VoIP phones (and hopefully other PoE-capable devices) are able to do more granular signaling of their power needs then Class 1-3 or more, giving you more headroom in regards to PoE(+) budget. Kind regards, JP Velders ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
[j-nsp] EX4200-48PX/PoE+
Hello Group, You might be able to help on that question: It is written on this table (table 1), that EX4200-48PX does support PoE+ (802.3at/30W per port). However, the PoE budget is equal to 740 W, which means PoE (740/48 = 15.4). I am really confused. Does this platform support full PoE+ on all 48 ports or it does support it only as protocol, but doesn't have enough power to provide 30W on each port (which means 1440 W for PoE budget). Best Regards, Nikolay Abromov ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] EX4200-48PX/PoE+
4200s can be given a 900 watt power supply (cant recall the exact wattage) however form my understanding is that the current EX range can support POE+ but as you pointed out, the PSUs cant provide a full 30W to all ports. So in essence, as I understand it we can have POE+ but not on all ports at same time. On 7 February 2013 09:33, Nikolay Abromov nabro...@gmail.com wrote: Hello Group, You might be able to help on that question: It is written on this table (table 1), that EX4200-48PX does support PoE+ (802.3at/30W per port). However, the PoE budget is equal to 740 W, which means PoE (740/48 = 15.4). I am really confused. Does this platform support full PoE+ on all 48 ports or it does support it only as protocol, but doesn't have enough power to provide 30W on each port (which means 1440 W for PoE budget). Best Regards, Nikolay Abromov ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] EX4200-48PX/PoE+
Is there any workaround like on Cisco by using RPS? On Thu, Feb 7, 2013 at 10:10 AM, Mark Menzies m...@deimark.net wrote: 4200s can be given a 900 watt power supply (cant recall the exact wattage) however form my understanding is that the current EX range can support POE+ but as you pointed out, the PSUs cant provide a full 30W to all ports. So in essence, as I understand it we can have POE+ but not on all ports at same time. On 7 February 2013 09:33, Nikolay Abromov nabro...@gmail.com wrote: Hello Group, You might be able to help on that question: It is written on this table (table 1), that EX4200-48PX does support PoE+ (802.3at/30W per port). However, the PoE budget is equal to 740 W, which means PoE (740/48 = 15.4). I am really confused. Does this platform support full PoE+ on all 48 ports or it does support it only as protocol, but doesn't have enough power to provide 30W on each port (which means 1440 W for PoE budget). Best Regards, Nikolay Abromov ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp -- Nikolay Abromov Mobile +44(0)7414678017 ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
