07-08-2005 05:05 PM - edited 03-02-2019 11:20 PM
I am trying to have 3 group of 4 GigE ports on the 3560G as a etherchannel and connect to 4 dells.
On gi0/7 - 10 the trunk config seems to work but I am not able to route between the switches. Here is the config ...
Can anyone take a look tell me what's missing? Much appreciated!
Building configuration...
Current configuration : 3422 bytes
!
! Last configuration change at 00:35:24 UTC Sat Jul 9 2005
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname cisco_switch_b
!
enable secret xxxx
enable password xxx
!
ip subnet-zero
ip routing
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface Port-channel1
switchport access vlan 5
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet0/1
description To Internet Router
no switchport
ip address 10.1.1.2 255.255.255.0
ip helper-address 10.1.1.8
!
interface GigabitEthernet0/2
!
interface GigabitEthernet0/3
!
interface GigabitEthernet0/4
!
interface GigabitEthernet0/5
!
interface GigabitEthernet0/6
!
interface GigabitEthernet0/7
description To Dell_switch_1
switchport access vlan 5
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
spanning-tree portfast
!
interface GigabitEthernet0/8
switchport access vlan 5
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
spanning-tree portfast
!
interface GigabitEthernet0/9
switchport access vlan 5
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
spanning-tree portfast
!
interface GigabitEthernet0/10
switchport access vlan 5
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
spanning-tree portfast
!
interface GigabitEthernet0/11
description To Dell_switch_2
switchport access vlan 6
spanning-tree portfast
!
interface GigabitEthernet0/12
switchport access vlan 6
spanning-tree portfast
!
interface GigabitEthernet0/13
switchport access vlan 6
spanning-tree portfast
!
interface GigabitEthernet0/14
switchport access vlan 6
spanning-tree portfast
!
interface GigabitEthernet0/15
description To Dell_switch_3
switchport access vlan 7
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet0/16
switchport access vlan 7
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet0/17
switchport access vlan 7
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet0/18
switchport access vlan 7
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet0/19
!
interface GigabitEthernet0/20
!
interface GigabitEthernet0/21
!
interface GigabitEthernet0/22
!
interface GigabitEthernet0/23
!
interface GigabitEthernet0/24
!
interface GigabitEthernet0/25
!
interface GigabitEthernet0/26
!
interface GigabitEthernet0/27
!
interface GigabitEthernet0/28
!
interface Vlan1
no ip address
shutdown
!
interface Vlan5
ip address 10.1.5.1 255.255.255.0
!
interface Vlan6
ip address 10.1.6.1 x.x.255.0
ip helper-address 10.1.5.7
!
interface Vlan7
ip address 10.1.7.1 x.x.x.0
ip helper-address 10.1.5.7
!
ip default-gateway 10.1.1.1
ip classless
ip http server
!
access-list 100 permit ip host 0.0.0.0 host 255.255.255.255
access-list 100 permit udp host 10.1.5.1 host 10.1.5.7 eq bootps
access-list 100 permit udp host 10.1.5.1 host 10.1.5.7 eq bootpc
access-list 100 permit udp host 10.1.5.7 host 10.1.5.1 eq bootps
access-list 100 permit udp host 10.1.5.7 host 10.1.5.1 eq bootpc
access-list 100 permit ip host 0.0.0.0 host 255.255.255.0
!
control-plane
!
!
line con 0
exec-timeout 0 0
line vty 0 4
password xxx
no login
line vty 5 15
password xxx
no login
!
ntp server 10.1.5.7
end
07-08-2005 07:23 PM
Hi Yong,
Config seems to be ok. Can you please explain what exactly is your problem.
"You are not able to route between the switches"-- Please explain what you are trying to access and from where so that problem can be better analyse.
Also I see ip routing is been enabled so it should route between all the 3 vlans. Just check your "sh ip route" and you should be able to see all the 3 networks.
Regards,
Ankur
07-08-2005 09:29 PM
Hi Yong,
Please paste a N/W digram to get a more clear picture of the problem.
The possibilities here could be :
1. Access-list is stopping the traffic ( But I see that is not being applied anywhere )
2. Ip routing is not defined ( Configs teels that its being enabled.
3. Trunk or the access ports configuration is diffrent.
Also, just want to tell you that, Using the line " access-list 100 permit ip host 0.0.0.0 host 255.255.255.255 " I think you are trying to permit all the hosts to talk to any other host. But that's a wrong way for defining the ACL. I would suggest you to use the folliwng :
access-list 100 permit ip 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255
or
access-list 100 permit ip any any
or
ip access-list extended ABC
permit ip host 0.0.0.0 host 0.0.0.0
Please paste the digram and let us know that from which switch you are trying to ping the host on other switch.
regards,
-amit singh
07-09-2005 07:56 PM
It looks like you've got 'switch access vlan 5' to place untagged (native) frames from each Dell into Vlan 5 on the Catalyst.
Is this assumption correct? If so, that's the problem. 'access vlan' only comes into effect if port is _not_ trunking. Use 'switch trunk native vlan 5' instead.
If this assumption is wrong, 'access vlan' has no effect. Please describe the Dell configuration with regard to trunking, vlans, port vlan assignment.
07-10-2005 08:36 AM
Here is an example to configure EtherChannel:
Cisco Catalyst 3560 Switch Configuration
Set MDIX automatic To enable cisco catalyst to accept cross cable and straight cable connection
# config t
# int range g0/1 28
# switchport mode access - Configure Cisco catalyst to normal switch port
# speed auto
# duplex auto
# mdix auto
# end
# show controllers Ethernet-controller
# copy running-config startup-config
Configure Etherchannels support redundancy and network load balancing
# config t
# int range g0/23 24
# switchport mode access
# switchport mode vlan 1
# channel-group 5 mode active
# exit
Configure Etherchannels load balancing
# config t
# port-channel load-balance src-dst-mac
# exit
Configure IP Address:
# config t
# int vlan 1
# ip address 10.xx.xx.xx 255.255.252.0
# ip default-gateway 10.xx.xx.1
# config t
# int range g0/19-20
# channel-group 2 mode active
# config t
# int range g0/17-18
# channel-group 3 mode active
# channel-group mode 3 desirable
# int port-channel 3
# switchport mode access
# config t
# int range g0/15-16
# channel-group 4 mode active
# show etherchannel summary to check Etherchannel port status
Regards,
Junhan
IT Specialist
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