02-24-2020 07:14 AM
Looking for help to bond 2 NICs on a Barracuda Backup appliance. The 2nd NIC on the appliance has been activated by Barracuda support. If NIC 2 (connected to gi1/0/8) is active, I can not ping the device. If I shutdown port gi1/0/8, I can ping the device. What am I missing?
My switch configuration is:
interface Port-channel10
switchport access vlan 100
switchport mode access
end
interface GigabitEthernet1/0/7
switchport access vlan 100
switchport mode access
channel-group 10 mode on
spanning-tree portfast
end
interface GigabitEthernet1/0/8
switchport access vlan 100
switchport mode access
channel-group 10 mode on
spanning-tree portfast
end
From Barracuda's knowledge base:
Link Aggregation (LAG) allows you to bond two or more ports in parallel to achieve greater throughput. LAG has the following properties:
Barracuda Networks uses Mode 4 (802.3ad) bonding, known as Dynamic Link Aggregation mode. This mode creates aggregation groups that share the same speed and duplex settings, and requires a switch that supports IEEE 802.3ad Dynamic link.
02-24-2020 07:46 AM
02-24-2020 10:27 AM
Hello,
I remotely remember that you have to disable spanning tree on the port channel:
interface Port-channel10
switchport access vlan 100
switchport mode access
--> spanning-tree bpdufilter enable
end
!
interface GigabitEthernet1/0/7
switchport access vlan 100
switchport mode access
channel-group 10 mode on
--> spanning-tree bpdufilter enable
spanning-tree portfast
end
!
interface GigabitEthernet1/0/8
switchport access vlan 100
switchport mode access
channel-group 10 mode on
--> spanning-tree bpdufilter enable
spanning-tree portfast
end
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