hey..
AT Last i think i can try and properly help someone ....yippe.. on your switches type this message no cdp advertise V2 i have had this all over my network ..and you are correct it is a bug in CDP .. according to cisco ,this isn`t a fix just a work around H(and i mean HOPE)TH steve skinner (CCxx MCxx HPxx SCxx CSxx.....you know i wish i had some proper certs and not just the xx ones) ----- Original Message ----- From: "The Long and Winding Road" To: Sent: Sunday, December 29, 2002 9:06 AM Subject: Possible CDP bug? Check it out! [7:59929] > I've run into this situation while doing some practicing with the 3550s and > some routers > > 2611------3550-------3550--------3640 > > all ethernet ports are set at full duplex 10 megabit speed. > > the 2611 and the 3640 are connected via a vlan tunnel. > > everything is working fine, until I turn on l2protocol-tunnel cdp on both > switches, at which point I get the following error: > > 3640 > FrameSwitch# > 1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on Ethernet0/1 (not > hal > f duplex), with Router_14_2611 Ethernet0/1 (half duplex). > > 2611 > 1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on Ethernet0/1 (not > ful > l duplex), with FrameSwitch Ethernet0/1 (full duplex). > > as near as I can tell, there are no errors on any of the interfaces. no > collisions, etc. not that I'm sending a lot of traffic during these studies, > but extended pings don't come up with anything either. > > relevant configurations for all interfaces. as you can see, everything > agrees all along the line. everyone is set for speed 10 and duplex full. if > I turn off l2protocol-tuinnel cdp on the interfaces, the error messages > disappear. I suspect a bug in CDP, but I'm wondering if I have missed > anything. > > 2611 > ------- > interface Ethernet0/1 > no ip address > full-duplex > ! > interface Ethernet0/1.1 > encapsulation dot1Q 121 > ip address 122.1.1.1 255.255.255.0 > ! > interface Ethernet0/1.2 > encapsulation dot1Q 122 > ip address 122.1.2.1 255.255.255.0 > ! > interface Ethernet0/1.3 > encapsulation dot1Q 123 > ip address 122.1.3.1 255.255.255.0 > ! > interface Ethernet0/1.4 > encapsulation dot1Q 124 > ip address 122.1.4.1 255.255.255.0 > ! > > Switch_24#sri f0/1 > Building configuration... > > Current configuration : 200 bytes > ! > interface FastEthernet0/1 > switchport access vlan 100 > switchport mode dot1q-tunnel > no ip address > duplex full > speed 10 > l2protocol-tunnel cdp > no cdp enable > spanning-tree bpdufilter enable > end > > interface FastEthernet0/26 > switchport access vlan 100 > switchport mode dot1q-tunnel > no ip address > duplex full > speed 10 > l2protocol-tunnel cdp > no cdp enable > spanning-tree bpdufilter enable > end > > 3640 > ------- > interface Ethernet0/1 > no ip address > no ip redirects > full-duplex > priority-group 1 > ! > interface Ethernet0/1.1 > encapsulation dot1Q 121 > ip address 122.1.1.2 255.255.255.0 > ! > interface Ethernet0/1.2 > encapsulation dot1Q 122 > ip address 122.1.2.2 255.255.255.0 > ! > interface Ethernet0/1.3 > encapsulation dot1Q 123 > ip address 122.1.3.2 255.255.255.0 > ! > interface Ethernet0/1.4 > encapsulation dot1Q 124 > ip address 122.1.4.2 255.255.255.0 > ! > > Chuck > -- > TANSTAAFL > "there ain't no such thing as a free lunch" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60212&t=59929 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
