Show CDP neighbors - confused from output

I'm really confused by the show CDP neighbors command. I was trying to find all the uplinks on our switches, unfortuantely they are at a remote site so I can't just go and have a look. I have just started out and got the following output. I am totally confused as I am seeing tonnes of different devices for the same interfaces. It looks like a lot of our mitel phones are listed. They are all showing as going into the same port though, which is also a port that is being shown as going into a SWITCH2. Any advice on why this is or what this is actually indicating would be really appreciated. I'm still early on in my network career and still trying to get up to speed with things.

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 f09e63c61d43 Gig 1/0/2 179 S I SF302-08P fa4 ESW-540-8P Gig 1/0/3 167 S I D ESW-540-8 g9 CORE_STACK Gig 1/0/26 124 R S I WS-C3750G Gig 1/0/28 CORE_STACK Gig 1/0/25 124 R S I WS-C3750G Gig 1/0/27 SEP08000F3AA281 Gig 1/0/2 173 H P Mitel 521 Port 1 SEP08000F151F9C Gig 1/0/2 158 H P Mitel 522 Port 1 SEP08000F63F9D4 Gig 1/0/2 145 H P Mitel 531 Port 1 SEP08000F17C9B5 Gig 1/0/2 132 H P Mitel 520 Port 1 SEP08000F2D9B53 Gig 1/0/2 129 H P Mitel 521 Port 1 SEP08000F356F8C Gig 1/0/2 170 H P Mitel 521 Port 1 SEP08000F3B1D28 Gig 1/0/2 128 H P Mitel 521 Port 1 SEP08000F17F9C5 Gig 1/0/3 133 H P Mitel 520 Port 1 SEP08000F166CA3 Gig 1/0/2 118 H P Mitel 520 Port 1 SEP08000F17E51F Gig 1/0/2 150 H P Mitel 520 Port 1 SEP08000F3A6C17 Gig 1/0/2 178 H P Mitel 521 Port 1 SEP08000F17CA60 Gig 1/0/2 148 H P Mitel 520 Port 1 SEP08000F1A88F4 Gig 1/0/2 164 H P Mitel 522 Port 1 SEP08000F274C3E Gig 1/0/2 151 H P Mitel 520 Port 1 SEP08000F37CCBB Gig 1/0/2 146 H P Mitel 521 Port 1 SEP08000F17BCCA Gig 1/0/2 154 H P Mitel 520 Port 1 SEP08000F2C1AFB Gig 1/0/3 139 H P Mitel 520 Port 1 SEP08000F17FBBF Gig 1/0/3 161 H P Mitel 520 Port 1 SEP08000F17EB60 Gig 1/0/2 167 H P Mitel 520 Port 1 SEP08000F2F3429 Gig 1/0/3 164 H P Mitel 520 Port 1 SEP08000F28E755 Gig 1/0/2 155 H P Mitel 521 Port 1 SEP08000F17F787 Gig 1/0/2 133 H P Mitel 520 Port 1 SEP08000F4F6917 Gig 1/0/2 178 H P Mitel 531 Port 1 SEP08000F273F58 Gig 1/0/2 159 H P Mitel 521 Port 1 SWITCH9 Gig 1/0/6 155 R S I WS-C3560- Fas 0/45 SEP08000F48F7FE Gig 1/0/2 146 H P Mitel 532 Port 1 SEP08000F26DB8E Gig 1/0/2 174 H P Mitel 521 Port 1 SEP08000F2F35AC Gig 1/0/2 130 H P Mitel 520 Port 1 SEP08000F35245D Gig 1/0/2 124 H P Mitel 521 Port 1 SEP08000F2C1983 Gig 1/0/2 116 H P Mitel 520 Port 1 SEP08000F28749B Gig 1/0/2 166 H P Mitel 521 Port 1 SEP08000F17E606 Gig 1/0/2 126 H P Mitel 520 Port 1 SEP08000F2CD6B2 Gig 1/0/2 137 H P Mitel 520 Port 1 SEP08000F26DB6A Gig 1/0/2 144 H P Mitel 521 Port 1 SEP08000F2D0CA1 Gig 1/0/2 177 H P Mitel 521 Port 1 SEP08000F2C16EE Gig 1/0/2 137 H P Mitel 520 Port 1 SWITCH2 Gig 1/0/3 134 S I WS-C2960S Gig 1/0/3 SWITCH2 Gig 1/0/5 141 S I WS-C2960S Gig 1/0/5 SWITCH2 Gig 1/0/2 134 S I WS-C2960S Gig 1/0/2 SWITCH2 Gig 1/0/4 134 S I WS-C2960S Gig 1/0/4 SWITCH2 Gig 1/0/1 129 S I WS-C2960S Gig 1/0/1 SEP08000F1F35CE Gig 1/0/3 147 H P Mitel 521 Port 1 SEP08000F26DC5A Gig 1/0/2 156 H P Mitel 521 Port 1 SEP08000F61BEF1 Gig 1/0/2 122 H P Mitel 532 Port 1