I did not read the lab nor port connections.
Here are my 2 cents. Let start this way (1) remove all configruation from both ends (2) bounce the interface and see if it came up or down (3) if it remains down, then I will suspect it is cable. Find the media type on both ends. I suspect that could be the problem. (4) otherwise, do show cdp neigh to ensure if you are applying configration at correct ports. Apply configuration of (1) trunk and then (2) port-channel. (3) Also remember to follow the correct order of "how to configure the port-channel " (5) then put udld port and bounce. (6) adjust errdisable timing too if you need to learn more I hope this helps From: [email protected] Date: Wed, 27 May 2009 14:43:28 -0700 To: [email protected] Subject: [OSL | CCIE_RS] Etherchannel Question I'm working on Lab 2 of Volume 1. Here is what I see between Cat1 and Cat3: Cat3550-1(config-if-range)#do sh run int f0/21 Building configuration... Current configuration : 207 bytes ! interface FastEthernet0/21 switchport trunk encapsulation dot1q switchport trunk allowed vlan 1,12,40,100,300,567 switchport mode trunk speed 100 duplex full udld port channel-group 13 mode on end Cat3550-1(config-if-range)#do sh run int f0/22 Building configuration... Current configuration : 207 bytes ! interface FastEthernet0/22 switchport trunk encapsulation dot1q switchport trunk allowed vlan 1,12,40,100,300,567 switchport mode trunk speed 100 duplex full udld port channel-group 13 mode on end Cat3560-3(config-if-range)#do sh run int f0/21 Building configuration... Current configuration : 207 bytes ! interface FastEthernet0/21 switchport trunk encapsulation dot1q switchport trunk allowed vlan 1,12,40,100,300,567 switchport mode trunk speed 100 duplex full udld port channel-group 13 mode on end Cat3560-3(config-if-range)#do sh run int f0/22 Building configuration... Current configuration : 207 bytes ! interface FastEthernet0/22 switchport trunk encapsulation dot1q switchport trunk allowed vlan 1,12,40,100,300,567 switchport mode trunk speed 100 duplex full udld port channel-group 13 mode on end Cat3560-3(config-if-range)# Configs look the same. However, if I look at Cat1 i see it is err-disable. Cat3550-1(config-if-range)#do sh int status | in 21 Fa0/21 err-disabled 1 full 100 10/100BaseTX Cat3550-1(config-if-range)#do sh int status | in 22 Fa0/22 err-disabled 1 full 100 10/100BaseTX Cat3550-1(config-if-range)# and the channel shows down: Cat3550-1(config-if-range)#do sh etherchannel summ Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 3 Number of aggregators: 3 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 12 Po12(SU) - Fa0/23(P) Fa0/24(P) 13 Po13(SD) - Fa0/21(D) Fa0/22(D) 14 Po14(SU) - Fa0/19(P) Fa0/20(P) Cat3550-1(config-if-range)# Over on Cat3 it shows the following: Cat3560-3(config-if-range)# Cat3560-3(config-if-range)#do sh int status | in 21 Fa0/21 notconnect 1 full 100 10/100BaseTX Cat3560-3(config-if-range)#do sh int status | in 22 Fa0/22 notconnect 1 full 100 10/100BaseTX Cat3560-3(config-if-range)# Cat3560-3(config-if-range)#do sh etherc summ Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 3 Number of aggregators: 3 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 13 Po13(SD) - Fa0/21(D) Fa0/22(D) 23 Po23(SU) - Fa0/19(P) Fa0/20(P) 34 Po34(SU) - Fa0/23(P) Fa0/24(P) Cat3560-3(config-if-range)# and the interface shows "notconnect" Cat3560-3(config-if-range)#do sh int f0/21 | in down FastEthernet0/21 is down, line protocol is down (notconnect) Cat3560-3(config-if-range)#do sh int f0/22 | in down FastEthernet0/22 is down, line protocol is down (notconnect) Cat3560-3(config-if-range)# In my experience "notconnect" has always been cabling. Is that the case here or am I missing something? I've been reading the document: http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.shtml Thanks in advance for any insight. -- Brandon Carroll, CCIE #23837 GlobalConfig.net PO Box 267 Mercer Island, Wa 98040 ph. (206) 866-5750 email: [email protected] on the web: www.globalconfig.net _________________________________________________________________ Hotmail® has a new way to see what's up with your friends. http://windowslive.com/Tutorial/Hotmail/WhatsNew?ocid=TXT_TAGLM_WL_HM_Tutorial_WhatsNew1_052009
