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Webcast-Catalyst9k
New Member

6500 does not see its' CDP neighbors

We have 3 6500 switches and are configured the same. One of these will send CDP packets, but will not receive CDP packets.

2 REPLIES
Cisco Employee

Re: 6500 does not see its' CDP neighbors

We need more information to be able to assist:

1. what device is the one affected 6500 connected to for which you don't see cdp?

2. does the suspect rx side receive any other type of traffic?

3. what is the module/port type and sw ver?

4. does/can this same affect switch port work with any other cdp neighbors?

5. does/can the opposite end port exchange cdp with another cdp neighbor?

New Member

Re: 6500 does not see its' CDP neighbors

1. It is connected to another 6500.

2. No

3. Gbic fiber module. c6sup2_rp-PK2SV-M, V. 12.1(13)E9 Early Deployment

4. No

5. Yes. The other 2 6500's exchange cdp. The affected 6500 says that cdp is on, sends cdp packets but 0 cdp packets received.

Thank you

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