Yep- you were right.  When I removed the channel from both sides the link
between the two came up.  Then I created a new channel-group (40) and
assigned that to both ends-  they came right up.


On Wed, May 27, 2009 at 2:55 PM, prakash patel <[email protected]>wrote:

>  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
>
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