09-20-2019 05:43 AM
Good day Folks,
So problem begins with my Barracuda Web Security Gateway. It keeps coming offline. After an extensive truobleshooting with the Barracuda Tech, he determined that my STP is the root of my problems. His suggestion is to exclude the IP Address associated with the appliance and that should correct my problem. Now the only problem I have is, since I am new to all this, how the heck do I do that? I must have fell asleep in class during that portion lol.
Please help. Thank you.
09-20-2019 06:12 AM
Hello,
interesting problem. As with regard to the tech's suggestion, spanning tree is layer 2, while IP is layer 3, so I am not really sure what he means either. How is the 'problem' device connected to the Barracuda ? Do you have a map or drawing of what your topology looks like ? Maybe he meant turning off spanning tree for that particular device. Which can be done, as long as there is no redundant connection to and from that device...
09-20-2019 06:13 AM
STP run on L2, so you need to look your spanning tree config and how your topology build
spanning treehelp you to build topology and block loops.
As long as you configure right Root bridge configured with right priority and Boracade configured with high priorty not to become root bridge for that VLAN (the IP you mentioning)
or post both the confguration along with show spanning root.
09-20-2019 06:39 AM
09-20-2019 06:54 AM - edited 09-20-2019 07:48 AM
EDITED sorry @Georg Pauwen
=====
Do you have high level network diagram how these switches connected cisco switch with Barracuda Web Security Gateway and other switch.
The switch config you have sent over, not the root bridge for those VLAN,
not sure what is connected to below ports, since vlan learning bridge from below ports
find out below MAC Address belong to :
001c.f9c8.3780
ccd8.c157.3400
interface GigabitEthernet1/0/8
description 13536
switchport trunk allowed vlan 1-98,100-4094
switchport mode trunk
interface GigabitEthernet1/0/12
description 13503
switchport trunk allowed vlan 1-98,100-4094
switchport mode trunk
Other note i belive none of them configured ( my thinking spanning-tree) because all coming from defaultvalues 32868
To suggest best we need more your network toplogy, so one can act as root bridge for the VLAN.
09-20-2019 07:31 AM
I am lost now to be honest. Where are the Brocade switches ?
Which Barracuda do you actually have (e.g. the 810) ?
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