01-08-2007 02:15 AM - edited 03-05-2019 01:38 PM
Hi,
Beeing newbie , I need advice to setup trunk between my 2 switches.
I would like to use 4 ports as TRUNK
On the 6500 , this is what I have done :
set port channel 5/37-40 61
...
set trunk 5/37 auto isl 1-1005,1025-4094
set trunk 5/38 auto isl 1-1005,1025-4094
set trunk 5/39 auto isl 1-1005,1025-4094
set trunk 5/40 auto isl 1-1005,1025-4094
...
On the Blade Switch 3020 I have done :
interface GigabitEthernet0/17
switchport trunk encapsulation isl
switchport mode trunk
shutdown
channel-group 1 mode on
!
interface GigabitEthernet0/18
switchport trunk encapsulation isl
switchport mode trunk
shutdown
channel-group 1 mode on
!
interface GigabitEthernet0/19
switchport trunk encapsulation isl
switchport mode trunk
shutdown
channel-group 1 mode on
!
interface GigabitEthernet0/20
switchport trunk encapsulation isl
switchport mode trunk
shutdown
channel-group 1 mode on
Will that work ?
Could you tell me if I have to put the trunk port on the same VLAN ?
Many thanks in advance for your help.
regards
David
01-08-2007 02:52 AM
Hi David,
Your configuration looks fine and you simple need to no shut the gig interfaces on 3020 blade switch.
Yes the allowed vlans list should match both the sides and on all ports to form a etherchannel bundle and by default it allows all the vlans. Your both the switches allow all default vlans so you are good to go.
HTH
Ankur
*Pls rate all helpfull post
01-09-2007 08:41 AM
Many thanks for your prompt response
But I have an issue
I did a no shut on one interface and it goes to trunk mode fine
When I did a no shut on the second one , it was ok for 2 minutes , trunks were enabled on both port , but they went to error-disabled after
It seems to work only with one port activated at a time.
any tips ?
many thanks
01-09-2007 09:09 AM
Hi Friend,
Can you try changing the config on CAT switch to something like this
set port channel 5/37-40 61 on
...
set trunk 5/37 on isl 1-1005,1025-4094
set trunk 5/38 on isl 1-1005,1025-4094
set trunk 5/39 on isl 1-1005,1025-4094
set trunk 5/40 on isl 1-1005,1025-4094
May be the blade switch is not doing any negotiation.
After changing the config on CATOS then try "no shut" on all the interfaces on blade switch.
Update if it works.
Regards,
Ankur
01-09-2007 09:17 AM
again,
thanks for your prompt response
I read an article that you can not do a trunk between a 1000 port and a 10/100 port speed ...
did I understand wrong ?
anyway I will try your tip
thanks
david
EDIT :
SAME situation after changing the conf on the CAT
01-09-2007 09:41 AM
Hi Friend,
Thats an issue. You cannot set and configure an etherchannel between different capability interfaces.
For etherchannel/port channel to work it is mandatory that all the ports are of same capability with same configuration.
HTH
Ankur
01-09-2007 09:45 AM
You cannot trunk or ehterchannel between different speed ports , all must have the same capabilities . If you have the catos as auto for trunking then try on the IOS side "swithcport mode dynamic desirable" . If the port were left as auto for speed and duplex then you should be able to trunk between them ok otherwise the links would not even be in an "up" condition if they were mismatched.
catos side
set trunk x/x desirable dot1q
IOS side
switchport mode dynamic desirable
01-09-2007 11:38 PM
I tried to put all the port into a 1gig switch and it is still the same issue
1 port is trunking fine
but I no shut the other ones , they all goes to err-disable.
what can be wrong?
please help
ON THE BLADE SWITCH , I HAVE :
interface GigabitEthernet0/17
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
!
interface GigabitEthernet0/18
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
!
interface GigabitEthernet0/19
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
!
interface GigabitEthernet0/20
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
on the CAT 6500 SWITCH, I HAVE :
set port channel 3/29,3/31-32,3/43 64
...
set trunk 3/29 on dot1q 1-1005,1025-4094
set trunk 3/31 on dot1q 1-1005,1025-4094
set trunk 3/32 on dot1q 1-1005,1025-4094
set trunk 3/43 on dot1q 1-1005,1025-4094
....
set spantree portfast 3/29,3/31-32,3/43 disable
01-11-2007 01:19 AM
Hi,
Any ideas ?
cheers
David
01-11-2007 04:25 PM
David, the "show errdisable-timeout" on CatOS should tell you exactly why the port is shut down. That may give us some clues as to what's really going on.
My best guess reading through the posts is that the etherchannel method is different on each side of the link. (And maybe I missed something as I ran through the existing posts a little quickly.) Mode "on" is different than mode "desirable". I recommend you determine exactly which etherchannel method you wish to use, and set both sides the same.
"On" implies that there is no protocol that will negotiate the etherchannel parameters for you. Or, it's a manual process that assumes you know what you're doing.
"Desirable" or "auto" implies PAgP, Cisco's Port Aggregation Protocol. "Desirable" will actively attempt to bring up an etherchannel. "Auto" will accept inbound PAgP traffic and commence with etherchannel establishment, but won't actually initiate the etherchannel himself.
"Active" and "passive" are for LACP (a standards based alternative to PAgP), which I personally wouldn't bother with unless you are etherchanneling to a device that ONLY speaks LACP.
I recommend you either set both sides to mode "on" or both sides to mode "desirable".
As mentioned above, every port in the etherchannel must be configured identically - speed, duplex, trunk, trunk protocol, vlans allowed on the trunk must all match. Any mismatches will cause that port to be disabled as a member of the etherchannel.
01-20-2007 03:28 PM
Hello David
I do not have a solution to your problem but we are having problems with the CBS3020 switches, so I would like to know which sw version you use on the 3020 blade switch?
We are currently experiencing difficulties with trunking between a CBS3020 and a Cisco 6509 sup720 using the dual media fiber ports. Very curious which sw version you use.
A thought however: I am not familiar with Cat OS or bundeling with pagp but: In IOS using lacp if the port capabilities within a channel do not match; the IOS will generate a message %EC-SP-5-CANNOT_BUNDLE_LACP stating the ports the channel and the particular attributes or capabilities that do not match. My guess would be if Cat OS works similar the port capabilities are identical and the problem could be in the 3020 switch?
Regards,
Iris
01-22-2007 12:59 AM
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Lux-bl-sw1
!
enable secret xxx
!
no aaa new-model
ip subnet-zero
!
!
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
interface Port-channel1
!
interface FastEthernet0
no ip address
no ip route-cache
!
interface GigabitEthernet0/1
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/2
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/3
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/4
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/5
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/6
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/7
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/8
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/9
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/10
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/11
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/12
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/13
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/14
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/15
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/16
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/17
!
interface GigabitEthernet0/18
!
interface GigabitEthernet0/19
!
interface GigabitEthernet0/20
!
interface GigabitEthernet0/21
!
interface GigabitEthernet0/22
!
interface GigabitEthernet0/23
!
interface GigabitEthernet0/24
!
interface Vlan1
no ip address
no ip route-cache
!
interface Vlan181
ip address xxx.xx.x.xxx 255.255.0.0
no ip route-cache
!
ip default-gateway xxx.xx.x.xx
ip http server
!
control-plane
!
!
line con 0
line vty 0 4
password fsv14m
login
line vty 5 15
password fsv14m
login
!
end
----
Port Name Status Vlan Duplex Speed Type
Gi0/1 connected 181 full 1000 1000BaseX
Gi0/2 connected 181 full 1000 1000BaseX
Gi0/17 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/18 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/19 notconnect 1 auto auto Not Present
Gi0/20 notconnect 1 auto auto Not Present
Gi0/21 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/22 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/23 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/24 notconnect 1 auto auto 10/100/1000BaseTX
Po1 notconnect 1 auto auto
Fa0 connected routed full a-100 10/100BaseTX
We saw that all the ports on the gig switch are set to be trunk by default.
trunk works
I need to investigate how to setup a ether channel trunk ( to have a 4 gig trunk instead of 4*1 gig )
01-22-2007 01:02 AM
$oftware, CBS30X0 Software (CBS30X0-LANBASE-M), Version 12.2(25)SEF1, RELEASE SOFTWARE (fc3)
01-21-2007 04:43 PM
Try this
ON THE BLADE SWITCH , I HAVE :
interface GigabitEthernet0/17
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable non-silent
!
interface GigabitEthernet0/18
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable non-silent
!
interface GigabitEthernet0/19
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable non-silent
!
interface GigabitEthernet0/20
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable non-silent
on the CAT 6500 SWITCH, I HAVE :
set port channel mode desirable non-silent 3/29,3/31-32,3/43 64
...
set trunk 3/29 on dot1q 1-1005,1025-4094
set trunk 3/31 on dot1q 1-1005,1025-4094
set trunk 3/32 on dot1q 1-1005,1025-4094
set trunk 3/43 on dot1q 1-1005,1025-4094
01-22-2007 01:00 AM
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Lux-bl-sw1
!
enable secret xxx
!
no aaa new-model
ip subnet-zero
!
!
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
interface Port-channel1
!
interface FastEthernet0
no ip address
no ip route-cache
!
interface GigabitEthernet0/1
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/2
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/3
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/4
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/5
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/6
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/7
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/8
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/9
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/10
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/11
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/12
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/13
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/14
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/15
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/16
switchport access vlan 181
speed 1000
spanning-tree portfast
!
interface GigabitEthernet0/17
!
interface GigabitEthernet0/18
!
interface GigabitEthernet0/19
!
interface GigabitEthernet0/20
!
interface GigabitEthernet0/21
!
interface GigabitEthernet0/22
!
interface GigabitEthernet0/23
!
interface GigabitEthernet0/24
!
interface Vlan1
no ip address
no ip route-cache
!
interface Vlan181
ip address xxx.xx.x.xxx 255.255.0.0
no ip route-cache
!
ip default-gateway xxx.xx.x.xx
ip http server
!
control-plane
!
!
line con 0
line vty 0 4
password fsv14m
login
line vty 5 15
password fsv14m
login
!
end
----
Port Name Status Vlan Duplex Speed Type
Gi0/1 connected 181 full 1000 1000BaseX
Gi0/2 connected 181 full 1000 1000BaseX
Gi0/17 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/18 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/19 notconnect 1 auto auto Not Present
Gi0/20 notconnect 1 auto auto Not Present
Gi0/21 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/22 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/23 connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/24 notconnect 1 auto auto 10/100/1000BaseTX
Po1 notconnect 1 auto auto
Fa0 connected routed full a-100 10/100BaseTX
We saw that all the ports on the gig switch are set to be trunk by default.
trunk works
I need to investigate how to setup a ether channel trunk ( to have a 4 gig trunk instead of 4*1 gig )
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