All,
I have a Cisco 3850 fiber switch with a single 10G link to a Cisco Nexus 7009 ("N7K"). The N7K links to the fiber switch's Te1/0/12. What I am seeing in the CDP table is switch2 and switch6 are also showing up via Te1/0/12. Switch2 is on Te1/0/7 and Switch6 is on Te1/0.2. In the CDP table below you can see the correct CDP entires as well as duplicate entires for Switch2 and Switch6 both coming off of Te1/0/12 where the N7K is.
My question is, what could be causing these duplicate entires for switch2 and switch6?
Thank you much,
M. Whitlow
3850fiberswitch#sho cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
D - Remote, C - CVTA, M - Two-port Mac Relay
Device ID Local Intrfce Holdtme Capability Platform Port ID
nexus7009(JPG20130099)
Ten 1/0/12 178 R S I C N7K-C7009 Eth 4/19
switch1
Ten 1/0/4 143 S I WS-C3850- Gig 1/1/1
switch2
Ten 1/0/7 153 S I WS-C3850- Gig 1/1/1
switch2
Ten 1/0/12 153 S I WS-C3850- Gig 1/1/1
switch3
Ten 1/0/1 153 S I WS-C3850- Gig 1/1/3
switch4
Ten 1/0/6 130 S I WS-C3750G Gig 1/0/12
switch5
Ten 1/0/5 156 S I WS-C3750G Gig 1/0/12
switch6
Ten 1/0/2 128 S I WS-C3850- Gig 1/1/1
switch6
Ten 1/0/12 128 S I WS-C3850- Gig 1/1/1
switch7
Ten 1/0/11 160 S I WS-C3560- Gig 0/1
switch8
Ten 1/0/3 148 S I WS-C3850- Gig 1/1/1
Total cdp entries displayed : 11
