Ethernet Switching
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New User
marcm
Posts: 5
Registered: ‎01-30-2008
0

Question on POE / and LLDP-MED

Does the 930 watt PS on the 4200 48 port POE have the ability to supply 15.4 watts to all 48 ports on its own or does it need the second PS to complete the job.
 
Does or has hte EX been tested for support on using the LLDP-MED function to provide the QoS and Voice VLAN tag to a Cisco IPTEL environment.
 
I can do LLDP-MED on a Procurve switch and it will happily provide plag and play as CDPv2 does for Cisco phones.
 
Has this been tested with EX?
 
Marc
Juniper Employee
Juniper Employee
dn
Posts: 21
Registered: ‎01-24-2008
0

Re: Question on POE / and LLDP-MED

A single 930 PS will be able to supply 15.4 watts to all 48 ports.  If a 2nd 930 PS is present, then it provides redundancy and the draw will be load-balanced between the two.
 
At release, EX supports LLDP-MED and should be able to communicate VLAN and 802.1P to compliant IPT end devices.  This is currently being tested.
New User
marcm
Posts: 5
Registered: ‎01-30-2008
0

Re: Question on POE / and LLDP-MED

dn,
 
Thanks.
 
The lockin Cisco achieve with the CDP story is hard to combat.
 
LLDP has made the battle a little more even.
 
Other vendors have published small white papers on how to configure for Cisco AVVID support on thier switching gear.
 
To date we have a few smaller sites who have made the jump away from Cisco Switching because of this.
 
It wold be nice if some similar EX doco wsas released.
 
Marc
Juniper Employee
The_Switch_is_ON
Posts: 9
Registered: ‎01-31-2008
0

Re: Question on POE / and LLDP-MED

Marc - thanks for the feedback. We will definitely take this into consideration for our implementation guides. For a discussion on implementing unified communications with the EX-series, please take a look at the "Branch LAN Connectivity Design Guide" in the Literature section of the EX products page.
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