Trunking Between Cisco switch and Dell switch

[texarcana]

Hello

I have Dell Powerconnect 6249 Switch (supports 802.q1) and a Cisco Systems Intelligent Gigabit Ethernet Switch Module for the IBM Eserver BladeCenter (CSIGESM type 13N2281).

- I made 2 VLANs (VLAN 2 and 3) on the Dell switch and on the Cisco switch.
- I assigned the needed ports to both VLANs.
- I assigned port 1/g48 on the dell for trunking
- I assigned port gi0/17 on the cisco for trunking
- I set VTP mode to transparent on the cisco en enabled 802.1q as trunking protocol

- I made a scheme with IPs here ->

http://www.cryptex.be/trunk2.jpg

The trunk has to carry both vlan 2 and 3 info from the dell switch to the cisco switch and vice versa.

The problem is that I cannot ping from the dell switch (10.7.35.31) to the cisco switch (10.7.35.22) and vice versa. Also I cannot ping from a laptop on VLAN2 on the dell switch to the bladeserver on the Cisco switch.

When I type show int gi0/17 switchport on the cisco, I see that the trunk is up, also the uplink LED's on both switches are up. Windows firewall is also set to allow echo requests and reply's.

Here is the config for the Cisco switch:
Current configuration : 5205 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname switch2
!
!
username xxxxxxxxxxxxxxxxxxxxxxxxxx
ip subnet-zero
!
vtp mode transparent
!
!
spanning-tree mode rapid-pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
vlan 2
name davylan
!
vlan 3
name tomlan
!
interface Port-channel1
switchport access vlan 2
switchport trunk native vlan 2
switchport trunk allowed vlan 2,20,22,24
switchport mode trunk
!
interface GigabitEthernet0/1
description blade1
switchport access vlan 2
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/2
description blade2
switchport access vlan 3
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/3
description blade3
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
shutdown
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/4
description blade4
switchport access vlan 2
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/5
description blade5
switchport access vlan 20
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/6
description blade6
switchport access vlan 20
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/7
description blade7
switchport access vlan 20
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/8
description blade8
switchport access vlan 20
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/9
description blade9
switchport access vlan 22
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/10
description blade10
switchport access vlan 2
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/11
description blade11
switchport access vlan 24
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode access
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/12
description blade12
switchport access vlan 2
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/13
description blade13
switchport access vlan 2
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/14
description blade14
switchport access vlan 2
switchport trunk native vlan 2
switchport trunk allowed vlan 2-4094
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/15
description mgmt1
switchport trunk allowed vlan 1
switchport mode trunk
switchport nonegotiate
spanning-tree cost 100
!
interface GigabitEthernet0/16
description mgmt2
switchport trunk allowed vlan 1
switchport mode trunk
switchport nonegotiate
spanning-tree cost 100
!
interface GigabitEthernet0/17
description uplink
switchport trunk native vlan 2
switchport trunk allowed vlan 2,3,20,22,24
switchport mode trunk
duplex full
!
interface GigabitEthernet0/18
description uplink
switchport trunk native vlan 2
switchport trunk allowed vlan 2,20,22,24
switchport mode trunk
!
interface GigabitEthernet0/19
description uplink
switchport trunk native vlan 2
switchport trunk allowed vlan 2,20,22,24
switchport mode trunk
!
interface GigabitEthernet0/20
description uplink
switchport trunk native vlan 2
switchport trunk allowed vlan 2,3
switchport mode trunk
duplex full
!
interface Vlan1
ip address 10.7.35.22 255.255.255.0
no ip route-cache
management
!
interface Vlan2
ip address 10.8.1.1 255.255.255.0
no ip route-cache
!
interface Vlan3
ip address 10.8.2.1 255.255.255.0
no ip route-cache
!
ip default-gateway 10.7.35.1
ip http server
ip http authentication local
snmp-server community public RO
snmp-server community private RW
!
line con 0
line vty 0 4
login local
line vty 5 15
login local
!
!
end


Here is the config for the Dell switch:
davy#show running
!Current Configuration:
!System Description "Dell PowerConnect"
!System Software Version 1.0.0.27
!
configure
vlan database
vlan 2-3
exit
hostname "davy"
stack
member 1 2
exit
ip address 10.7.35.31 255.255.255.0
ip default-gateway 10.7.35.1
interface vlan 2
name "davylan"
exit
interface vlan 3
name "tomlan"
exit
username xxxx password xxxx level 15 encrypted

aaa authentication enable "enableList" line
line console
password xxxx encrypted
exit
line telnet
password xxxx encrypted
exit
!
interface ethernet 1/g1
switchport access vlan 2
exit
!
interface ethernet 1/g2
switchport access vlan 2
exit
!
interface ethernet 1/g3
switchport access vlan 2
exit
!
interface ethernet 1/g4
switchport access vlan 2
exit
!
interface ethernet 1/g5
switchport access vlan 2
exit
!
interface ethernet 1/g6
switchport access vlan 2
exit
!
interface ethernet 1/g7
switchport access vlan 3
exit
!
interface ethernet 1/g8
switchport access vlan 3
exit
!
interface ethernet 1/g9
switchport access vlan 3
exit
!
interface ethernet 1/g10
switchport access vlan 3
exit
!
interface ethernet 1/g11
switchport access vlan 3
exit
!
interface ethernet 1/g12
switchport access vlan 3
exit
!
interface ethernet 1/g48
switchport mode general
switchport general pvid 4095
no switchport general acceptable-frame-type tagged-only
switchport general allowed vlan add 2 tagged
switchport general allowed vlan add 3 tagged
exit


I have no idea what could be wrong.
Could someone check my configs and help if possible, cause its driving me insane

Sincerely,
Dave

 

[chipk]

I don't know much about Dell switches, but it seems odd that the IP is not assigned to vlan1 in the config. Or maybe it is and I really just don't understand the Dell config, though it looks quite similar to Cisco.

 

[vipergg]

you can only have 1 SVI on the cisco switch to manage the bladecenter which is interface vlan 1, get rid of the other 2 layer 3 svi's as they are doing nothing , that address is to manage the switch only and can do no routing between vlans , you need an external layer 3 routing device to do that. The interface vlan 2 and 3 statements are doing nothing. . Also to ping the switch the management port on the bladecenter must be connected to the switch because that is how the cisco switch is managed it rides up to the management port on the bladecenter and is passed internally . The management of the switch does not ride across that trunk you are trying to build . Unless that Dell switch is layer 3 you cannot have more than 1 vlan and expect to talk between them without a router or layer 3 device in the mix somehwere . On the cisco switch trunk interface you can try adding the "switchport nonegotiate" command . also on the Dell see if there is a way to make the trunk port match the native vlan 2 on the cisco , native vlan 2 is untagged .

 

[vipergg]

Check to see if you have a cable in port 15 on the switch I believe this is the management port for the bladecenter itself .

 

[texarcana]

Hello

I fixed it the problem (well technically i didnt fix it ).
I just installed another blade server and everything worked fine on that one.
So config was ok, it was just the NIC on bladeserver 1 who was giving me troubs, grrr

PS: the dell switch is layer3

Sincerely,
Dave