Dumb cdp question

turning off cDP updates on a user interface will not affect EIGRP updates on the port.

OBTW why would you want to transmit EIGRP updates on a user port anyways ???

better to configure user ports to be passive

I don't want EIGRP on the user ports, but someone I work tried to tell me that stopping CDP at the user ports would also stop EIRGP. So I asked the question. I have a 6513 that I want to stop EIGRP traffic to the 10 blades of user ports. Across the 10 blades I have 6 VLAN's. What would be the best way to stop EIGRP at the user port level? Also the 6513 is running IOS not crappy CAT:OS

post your EIGRP routing process: show run | begin router eigrp

post the output of "show ip eigrp nei"

post the output of " show ip eigrp int"

inline.

router eigrp 700: passive-interface fastEthernet this comand will only do

1 port at a time.

router eigrp 700 network 10.0.0.0 network 172.25.0.0 no auto-summary

IP-EIGRP neighbors for process 700 H Address Interface Hold Uptime SRTT RTO Q Seq Type (sec) (ms) Cnt Num

1 10.0.150.13 Po2 2 8w0d 1 200 0 104194 0 10.0.150.17 Po1 2 30w1d 1 200 0 851653

IP-EIGRP interfaces for process 700

Xmit Queue Mean Pacing Time Multicast Pending Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes Vl168 0 0/0 0 0/10 0 0 Vl169 0 0/0 0 0/10 0 0 Vl170 0 0/0 0 0/10 0 0 Vl171 0 0/0 0 0/10 0 0 Vl172 0 0/0 0 0/10 0 0 Vl175 0 0/0 0 0/10 0 0 Vl268 0 0/0 0 0/10 0 0 Vl269 0 0/0 0 0/10 0 0 Vl270 0 0/0 0 0/10 0 0 Vl271 0 0/0 0 0/10 0 0 Vl272 0 0/0 0 0/10 0 0 Po1 1 0/0 1 0/10 50 0 Po2 1 0/0 1 0/10 50 0 Lo1 0 0/0 0 0/10 0 0 Vl275 0 0/0 0 0/10 0 0

>

There are basically two ways to make the user vlan interfaces passive;

1. make all interfaces passive by default and then make the ones that have EIGRP neighbour non-passive

router eigrp 700 passive-interface default no passive-interface po1 no passive-interface po2 exit

1. make each user VLAN interface passive

router eigrp 700 passive-interface vl168 passive-interface vl169 ... passive-interface vl272 exit

In your case I would prefer to use option 1 as it prevents new interfaces being configured later on and ending up transmitting EIGRP updates because you forget to make it passive. Also option 1 results in a small routing process configuration

Thanks for your help. Unfortunately I have to wait until my next maintenance window to implement this change.