Hello Colm,
but the following info
Device ID: ABC
Entry address(es):
IP address: 10.201.144.5
Platform: cisco WS-C6509-E
is correct ?
CDP is a layer 2 protocol it should provide you the IP address of the interface you connect to or the the SVI of vlan144 ip address.
the absence of the management address can be the result of the multilayer nature of the c6509 that has multiple ip addresses in different subnets.
the management address can be a field that is filled by l2 switch where is clear what the management address is (there's only one)
But I see that in one campus
Device ID: XXXX
Entry address(es):
IP address: 10.103.0.2
Platform: cisco WS-C6506-E, Capabilities: Router Switch IGMP
Interface: TenGigabitEthernet1/1, Port ID (outgoing port): TenGigabitEthernet4/3
Holdtime : 170 sec
Version :
Cisco IOS Software, s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(33)SXH2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Sat 29-Mar-08 13:27 by prod_rel_team
advertisement version: 2
VTP Management Domain: 'pal.A'
Native VLAN: 1
Duplex: full
Management address(es):
IP address: 10.103.0.2
Well there is the management ip address
Is your 6500 switch a VTP server or client ?
may be the field is only for VTP server
In my case it is so may be the meaning is that
Edit:
I've verified that a l2 switch even if vtp client shows the mgmt address as seen by neighbor.
Hope to help
Giuseppe
