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Dell Trunking 5548 Stack to 7048 Issue
Hello,
I have a Dell 5548 6 Switch Stack running a number of vlans for a VMware infrastructure. I am attempting to trunk vlans 300-310 to multiple 7048 switches. The confusing part of this situation is that it is working for only 1 out of the 3 individual 7048 switches. The configuration on both ends is exactly the same as far as I can tell. Appreciate any input on the issue. Here is the configurations for the working switch and one of the not working switches, let me know if there is any other information that is needed.
5548 Stack - GI1/0/20 - working config
Name: gi4/0/20
Switchport: enable
Administrative Mode: trunk
Operational Mode: up
Access Mode VLAN: 1
Access Multicast TV VLAN: none
Trunking Native Mode VLAN: 1
Trunking VLANs Enabled: 1,10,15,151,160-161,163,300-310
2-9,11-14,16-150,152-159,162,164-299,311-4094 (Inactive)
General PVID: 1
General VLANs Enabled: none
General Egress Tagged VLANs Enabled: none
General Forbidden VLANs: none
General Ingress Filtering: enabled
General Acceptable Frame Type: all
General GVRP status: disabled
Customer Mode VLAN: none
Private-vlan promiscuous-association primary VLAN: none
Private-vlan promiscuous-association Secondary VLANs Enabled: none
Private-vlan host-association primary VLAN: none
Private-vlan host-association Secondary VLAN Enabled: none
DVA: disable
7048 - GI1/0/3 - working config
Port: Gi1/0/3
VLAN Membership Mode: Trunk Mode
Access Mode VLAN: 1 (default)
General Mode PVID: 1 (default)
General Mode Ingress Filtering: Enabled
General Mode Acceptable Frame Type: Admit All
General Mode Dynamically Added VLANs:
General Mode Untagged VLANs: 1
General Mode Tagged VLANs:
General Mode Forbidden VLANs:
Trunking Mode Native VLAN: 1 (default)
Trunking Mode Native VLAN Tagging: Disabled
Trunking Mode VLANs Enabled: 300-310
Private VLAN Host Association: none
Private VLAN Mapping:
Private VLAN Operational Bindings:
Default Priority: 0
Protected: Disabled
-----------------------------------------------------------------------------------
5548 Stack - GI1/0/20 - NOT working config
Name: gi4/0/21
Switchport: enable
Administrative Mode: trunk
Operational Mode: up
Access Mode VLAN: 1
Access Multicast TV VLAN: none
Trunking Native Mode VLAN: 1
Trunking VLANs Enabled: 1,10,15,151,160-161,163,300-310
2-9,11-14,16-150,152-159,162,164-299,311-4094 (Inactive)
General PVID: 1
General VLANs Enabled: none
General Egress Tagged VLANs Enabled: none
General Forbidden VLANs: none
General Ingress Filtering: enabled
General Acceptable Frame Type: all
General GVRP status: disabled
Customer Mode VLAN: none
Private-vlan promiscuous-association primary VLAN: none
Private-vlan promiscuous-association Secondary VLANs Enabled: none
Private-vlan host-association primary VLAN: none
Private-vlan host-association Secondary VLAN Enabled: none
DVA: disable
7048 - GI1/0/3 - NOT working config
Port: Gi1/0/3
VLAN Membership Mode: Trunk Mode
Access Mode VLAN: 1 (default)
General Mode PVID: 1 (default)
General Mode Ingress Filtering: Enabled
General Mode Acceptable Frame Type: Admit All
General Mode Dynamically Added VLANs:
General Mode Untagged VLANs: 1
General Mode Tagged VLANs:
General Mode Forbidden VLANs:
Trunking Mode Native VLAN: 1 (default)
Trunking Mode Native VLAN Tagging: Disabled
Trunking Mode VLANs Enabled: 300-310
Private VLAN Host Association: none
Private VLAN Mapping:
Private VLAN Operational Bindings:
Default Priority: 0
Protected: Disabled
Thanks!!
DELL-Josh Cr
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February 17th, 2020 15:00
Hi,
Are they all running the same firmware version?
DELL-Josh Cr
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February 19th, 2020 10:00
From what you posted they looks the same, is there something on the port config that you did differently?
barrybbenson
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February 19th, 2020 10:00
@DELL-Josh Cr
Thank you for your response. Much appreciated!
I forgot to mention this in the original post. Both 7048 switches are running on firmware version 5.1.13.1.
The 5548 Stack is running firmware version 4.1.0.21
I noticed there is a firmware update for the 7048 switches, which can be applied with schedulded downtime. Although, it is a bit confusing how they are both running the same fw version but only one works. Which makes me lean toward a configuration issue but I am unsure what.
Thanks!
barrybbenson
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February 21st, 2020 08:00
The switch port config for the 5548 was as follow:
switchport mode trunk
switchport trunk allowed vlan add 300-310
7048 Config
Switchport mode trunk
switchport trunk allowed vlan 300-310
Very weird issue. Are there any trunking limitations with a 5548 Stack?
DELL-Josh Cr
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February 21st, 2020 09:00
It shouldn’t but it is a slower switch chip and if there is a lot of traffic it might not keep up.