Netgear enterprise switches & LLDP PortID

Question

Below is the 'lldpctl' output from a Linux host connected to a Netgear M4300. Why does the 'PortID' get the word 'local' as a refix? This is wreaking havoc on some of our switch monitoring software. Cisco, Arista and others just show the PortID like 1/0/1, etc. Juniper uses the word local but they have the ability to customize this PortID string so that it can be removed.

-------------------------------------------------------------------------------

Interface: eth1, via: LLDP, RID: 2, Time: 0 day, 00:00:11

Chassis:

ChassisID: mac 10:da:43:f9:3b:3d

SysName: M4300

SysDescr: M4300-8X8F ProSAFE 8-port 10GBASE-T and 8-port 10G SFP+, 12.0.2.20, 1.0.0.9

TTL: 120

MgmtIP: 10.0.103.1

Capability: Bridge, on

Capability: Router, on

Port:

PortID: local 1/0/5

PortDescr: 1/0/5

-------------------------------------------------------------------------------

Any help would be greatly appreciated!

ecsrun27 · Answer

Apparently the LLDP-MED feature changes the portID sub-type from 'ifname' to 'local'. I found this just by some luck in that I disabled LLDP-MED.&nbsp;Here is a Linux host running lldpctl when LLDP-MED is turned on:&nbsp;[root@NTNX-14SM36451141-A ~]# lldpctl-------------------------------------------------------------------------------LLDP neighbors:-------------------------------------------------------------------------------Interface:&nbsp; &nbsp; eth0, via: LLDP, RID: 1, Time: 0 day, 00:15:42&nbsp; Chassis:&nbsp; &nbsp; &nbsp;&nbsp; &nbsp; ChassisID:&nbsp; &nbsp; mac 10:da:43:f9:3b:3d&nbsp; &nbsp; SysName:&nbsp; &nbsp; &nbsp; M4300&nbsp; &nbsp; SysDescr: &nbsp; &nbsp; M4300-8X8F ProSAFE 8-port 10GBASE-T and 8-port 10G SFP+, 12.0.2.20, 1.0.0.9&nbsp; &nbsp; TTL:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 120&nbsp; &nbsp; MgmtIP: &nbsp; &nbsp; &nbsp; 10.0.103.1&nbsp; &nbsp; Capability: &nbsp; Bridge, on&nbsp; &nbsp; Capability: &nbsp; Router, on&nbsp; Port: &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; &nbsp; PortID: &nbsp; &nbsp; &nbsp; local 1/0/2&nbsp; &nbsp; PortDescr:&nbsp; &nbsp; 1/0/2&nbsp;&nbsp;-------------------------------------------------------------------------------&nbsp;&nbsp;And here it is with LLDP-MED disabled:&nbsp;&nbsp;[root@NTNX-14SM36451141-A ~]# lldpctl-------------------------------------------------------------------------------LLDP neighbors:-------------------------------------------------------------------------------Interface:&nbsp; &nbsp; eth0, via: CDPv2, RID: 2, Time: 0 day, 00:25:25&nbsp; Chassis:&nbsp; &nbsp; &nbsp;&nbsp; &nbsp; ChassisID:&nbsp; &nbsp; local 4G346A7B800F3&nbsp; &nbsp; SysName:&nbsp; &nbsp; &nbsp; 4G346A7B800F3&nbsp; &nbsp; SysDescr: &nbsp; &nbsp; M4300-8X8F running on&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 12.0.2.20&nbsp; &nbsp; TTL:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 180&nbsp; &nbsp; MgmtIP: &nbsp; &nbsp; &nbsp; 192.168.201.2&nbsp; &nbsp; MgmtIP: &nbsp; &nbsp; &nbsp; 10.0.103.1&nbsp; &nbsp; MgmtIP: &nbsp; &nbsp; &nbsp; 10.0.104.1&nbsp; &nbsp; MgmtIP: &nbsp; &nbsp; &nbsp; 10.0.105.1&nbsp; &nbsp; Capability: &nbsp; Router, on&nbsp; Port: &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; &nbsp; PortID: &nbsp; &nbsp; &nbsp; ifname 1/0/2&nbsp; &nbsp; PortDescr:&nbsp; &nbsp; 1/0/2-------------------------------------------------------------------------------&nbsp;&nbsp;

DaneA · Answer

Hi ecsrun27,

&nbsp;

It would be best that you open a chat or online case with NETGEAR Support&nbsp;at anytime regarding your concern.&nbsp; This will be escalated to the engineering team for further investigation.&nbsp;

&nbsp;

Regards,

&nbsp;

DaneA

NETGEAR Community Team&nbsp;

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Netgear enterprise switches & LLDP PortID

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