is there anything on those VLANs that might be generating CDP? the
subinterfaces will drop CDP packets based on this config so they might show
up as dropped packets in the SNMP stats.

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]

Sent: Thursday, October 23, 2003 3:32 AM
To: [EMAIL PROTECTED]
Subject: Re: Receive errors on 802.1Q subinterface



--- "Jakob Peterh�nsel" <[EMAIL PROTECTED]> wrote:
We have a setup with a server with two interfaces, one is a native VLAN=20=

and the other is a 802.1Q Trunk.
I have seen this behavior on a lot of the Trunk interfaces, but this is=20=

on the actual (ie. master) interface.

Do you have any restrictions on the interface (sub or master) like "...=20=

allow vlan x-y,z" or someting?
--- end of quote ---


Jakob,

The only restriction is an access-list on one subinterface. Here is the
config for the master and two subinterfaces:

interface FastEthernet1/1/0
 description Master Interface
 no ip address
 full-duplex
 no cdp enable
!
interface FastEthernet1/1/0.3
 description Local peering subnet
 encapsulation dot1Q 3
 ip address 129.170.8.10 255.255.255.0
 ip broadcast-address 129.170.8.255
 ip access-group local_peer_in_b in
 no cdp enable
!
interface FastEthernet1/1/0.4
 description Akamai servers
 encapsulation dot1Q 4
 ip address 129.170.9.241 255.255.255.240
 no cdp enable


Steve Campbell
Dartmouth College
Hanover, NH US

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