03-24-2025 11:10 AM
I tested and I need LLDP on my edge switches, 9200 and 9300 switches, to negotiate and get the Extreme Networks 410C AP's to go from 14W (AF) to 30W (AT) Power. If I enable LLDP on the switch to active, will that affect anything else going on in the network? I did it on one test switch. My Core Cisco switch and edge switches are using CDP. On the test edge switch, 'Sho LLDP' shows the following:
XXX-XXX-TEST#sho lldp neighbors
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other
Device ID Local Intf Hold-time Capability Port ID
XXX-IDFE-W-5420F-01Gi1/0/3 120 1
TECH24-DRYVJ24 Gi1/0/2 3601 1098.193c.bbe0
SEPF87B204F8386.casdGi1/0/1 180 B,T F87B204F8386:P1
Total entries displayed: 3
My port Te1/0/9 is now showing the correct power:
XXX-XXX-TEST#sho power inline
Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- ---------
1 740.0 36.3 703.7
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/1 auto on 6.3 IP Phone 8841 2 30.0
Gi1/0/2 auto off 0.0 n/a n/a 30.0
Gi1/0/3 auto off 0.0 n/a n/a 30.0
Gi1/0/4 auto off 0.0 n/a n/a 30.0
Gi1/0/5 auto off 0.0 n/a n/a 30.0
Gi1/0/6 auto off 0.0 n/a n/a 30.0
Gi1/0/7 auto off 0.0 n/a n/a 30.0
Gi1/0/8 auto off 0.0 n/a n/a 30.0
Gi1/0/9 auto on 30.0 Ieee PD 4 30.0
Gi1/0/10 auto off 0.0 n/a n/a 30.0
Gi1/0/11 auto off 0.0 n/a n/a 30.0
I want to enable LLDP on the Cisco edge switch, who basically only do AP's, for the AP POE ports. Before I put in working environment, does anyone see any reasons not to do this?
Thanks!
03-24-2025 11:34 AM
To be safe instead of enabling globally, you can enable it on a per port basic where extreme devices are connected.
even though it won't effect anything operation wise, it does open your device to discovery, which may not be allowed in some secure environments
03-24-2025 12:25 PM
I do not see any effect on any other device.
03-24-2025 10:40 PM
Hello @Tamizpa ,
enabling LLDP MED in a multi vendor environment is a required step also for IP phones for VOIP. You should be able to enable it with no issues.
To make an example Cisco ACI default is LLDP enabled and CDP disabled on each leaf node switch port.
Hope to help
Giuseppe
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